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science 8th grade Flashcards

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1
Q

How far can a middle school student throw a “Bi-plane” design airplane from 1 meter off the ground in the middle school gym?

A

not testable

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2
Q

Which BRAND OF TOILET PAPER, using one 10cm x 10cm square that has been soaked with 15ml of room temperature water, can hold the most stacked quarters before ripping? What name is given for the brand of toilet paper part in this experiment?

A

independent variable

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3
Q

Which of the following is a good testable question? How high can three different types of birds fly?
How high can three different types of birds fly?

Which brand of toilet bowl cleaner cleans the best in a middle school?
Which brand of toilet bowl cleaner cleans the best in a middle school?

Why is the sky blue?
Why is the sky blue?

Which brand of golf ball rolls the farthest in cm when hit by a putting machine?

A

Which brand of golf ball rolls the farthest in cm when hit by a putting machine?

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4
Q

which brand of toilet paper, using one 10cm x 10cm square that has been soaked with 15ml of room temperature water, can HOLD THE MOST STACKED QUARTERS before ripping? What is the name for the number of quarters counted after each trial in the experiment?

A

dependant variable

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5
Q

Which brand of toilet paper, USING ONE 10cm X 10cm SQUARE THAT HAS BEEN SOAKED WITH 15ml OF ROOM TEMPERATURE WATER, can hold the most stacked quarters before ripping? The size, temperature and water amounts are all considered what part of the experiment?

A

Control

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6
Q

Which brand of vanilla ice cream tastes the best?

A

Not testable

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7
Q

When you use your data to create a graph (visual way to show/finding the answer to your original question from all of your trials), what information goes on the X and Y axis

A

X- axis has your independent variable, the Y- axis has your dependent variable.

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8
Q

In the Data section, what do you document?

A

Every single trial you did, including the units of measure in metric units

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9
Q

Which step in the following procedure makes this experiment with results you can’t trust?

  1. Gather all of your supplies and bring to the middle school gym.
  2. Use painter’s tape to secure the meter stick to the side wall.
  3. Place a ladder next to the wall by the meter stick.
  4. Tell your partner to start the video on their phone for the trials.
  5. Climb the ladder and drop the ball from 3m onto the gym floor.
  6. Record only the bounces that your group agreed were good enough.
  7. Repeat step 4-6 ten times for each brand of volleyball.
A

6 because you must use bounce heights from every trial

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10
Q

Which thickness of Staples-brand 7cm diameter rubber band can stretch the furthest before breaking with a stretching machine?

A

Testable

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11
Q

How should a “conclusion” be written for your science experiment?

A

As an example with the toilet paper brand experiment, it would include the ranking of every brand tested from best to worst.

The conclusion restates the entire original question but includes the answer you found from your trials.

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12
Q

Which brand of new tennis balls will bounce the highest when dropped on a gym floor from 2 meters?

A

Testable

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13
Q

Which brand of shampoo makes hair the shiniest, cleanest, and fullest?

A

Not testable

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14
Q

Which of the following is an example of a properly written hypothesis for a question dealing with flying different designs of paper airplane for longest distance?My hypothesis was incorrect, all airplanes flew exactly the same distance when I threw it as hard as I could.
My hypothesis was incorrect, all airplanes flew exactly the same distance when I threw it as hard as I could.

I think that airplane design B will fly the farthest when launched from a robotic paper airplane launcher.
I think that airplane design B will fly the farthest when launched from a robotic paper airplane launcher.

Our paper airplanes did not fly far because we could not fold each design exactly the same.
Our paper airplanes did not fly far because we could not fold each design exactly the same.

Our airplanes flew the following distances, 150cm, 201cm, 85cm, 182cm, 221cm, 190cm, and 178cm for an average distance of 172.4cm.
Our airplanes flew the following distances, 150cm, 201cm, 85cm, 182cm, 221cm, 190cm, and 178cm for an average distance of 172.4cm.

A

I think that airplane design B will fly the farthest when launched from a robotic paper airplane launcher.

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15
Q

What part of the scientific method is described by the following statement? “I think that the Northern brand 10cm x 10cm toilet paper square soaked with 15ml of room temperature water can hold the most stacked quarters before ripping

A

Hypothesis

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16
Q

A tennis racket smacks a bowling ball traveling at 5m/s with a force of 155N. What would the force be with Newton’s 3rd Law of Motion in mind? (You know the law, dont over think it!)

A

The bowing ball would experience 155N in the opposite direction it was rolling from the tennis racket.

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17
Q

How does Newton’s 3rd Law explain Mr. Raupp sitting still on a chair?

A

The upward push force of the chair is the exact same amount of force as Mr. Raupp’s downward force due to gravity.

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18
Q

A Semi Truck windshield strikes a large moth while traveling at 50km/hr…SPLAT! What does Newton’s 3rd Law tell us about that interaction?

A

Upon impact, the moth and the windshield experienced the exact same amount of force.

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19
Q

If I was in space and accidentally started floating away from the space station while working with and carrying a huge/massive solar panel, how could I make my way back to the ship using my knowledge of Newton’s 3rd Law of Motion?

A

Put your body between the solar panel and the station. Push the solar panel away from the station as hard as you can which will force you to float towards the space station.

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20
Q

If Mr. Raupp and Mr. Haydamacker had a tug of war. Mr Raupp was pulling with 512N of force. Mr. Haydamacker was pulling with 512N of force. What does that mean.

A

Neither will win. Their only hope is the rope breaking.

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21
Q

A skate boarder loses his balance and hits a stop sign. The skateboard applies a force of 400N to the stop sign. What would Newton’s 3rd Law of motion also state?

A

The stop sign applied 400N of force back on the skateboard.

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22
Q

Which is the correct description of Newton’s 3rd Law of Motion?

A

If two objects collide, their forces will be equal in magnitude and in opposite directions on each othe

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23
Q

If Mr. H was pushing on you with 200N of force and you moved backwards that means…..

A

You are pushing with less than 200N of force

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24
Q

A car rolls down a hill and hits a mailbox. How would Newton’s 3rd law explain this interaction?

A

The mailbox and the car would experience equal impact force.

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25
Q

If you put 300N of force downward on a table what is happening?

A

The table is applying 300N of force back on you.

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26
Q

If you push on the wall with 234N of force and you hands break through the wall what does that mean?

A

The wall was not able to apply 234N of force back on you so it broke.

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27
Q

You are hanging from your door jam, describe the forces between those two objects.

A

The door jam and you hands experience the same force but in opposite directions of each other.

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28
Q

When a basketball hits the classroom floor, describe the forces and motion that occur.

A

The floor and the basketball experience the same force, but the ball is less massive so the force moves it easily

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29
Q

If Mr. H was pushing on you with 222N of force and you moved backwards that means…..

A

You are pushing with 200N of force

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30
Q

You throw a pumpkin at a wall just to see what would happen. Which options is correct….
The pumpkin experienced more force, you can tell because the pumpkin exploded and the wall had no damage.
The pumpkin experienced more force, you can tell because the pumpkin exploded and the wall had no damage.

The pumpkin and the wall experienced the exact same force upon impact.
The pumpkin and the wall experienced the exact same force upon impact.

The wall was not moving so it can not exert force so all the force came from the pumpkin.
The wall was not moving so it can not exert force so all the force came from the pumpkin.

The wall felt more force because it is much more solid than the pumpkin that caused it to smoosh immediately.

A

The pumpkin and the wall experienced the exact same force upon impact.

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31
Q

If you are driving in your car and slam on your brakes are you accelerating?

A

Yes, any change in velocity is a change in acceleration.

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32
Q

What is the acceleration of a free falling object on EARTH due to gravity?

A

9.8m/s^2

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33
Q

How much mass does a box have if you can accelerate it to 12m/s2 while pushing it with 480N of force?

A

40kg

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34
Q

Which of the following statements is FALSE of Newton’s 2nd law?

A

Two cars with different masses are pushed with the same force. The more massive car would accelerate faster.

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35
Q

Which are the correct formulas for Newton’s 2nd law.

A

F=am, a=F/m, m=F/a

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36
Q

Which statement is true about the statement…..

“Is 2000N worth of force enough to accelerate a 500kg object to 6m/s²?”

A

You’d need 1,000N more

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37
Q

Which object would be the easiest to accelerate on a flat surface with the same amount of force?

A

Ping Pong ball

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38
Q

How much force would be needed to accelerate a 1,500kg car 3m/s²?

A

4,500N

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39
Q

How fast does a 6kg ball accelerate if pushed by a 66N force?

A

11m/s2

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40
Q

When looking at Newton’s 2nd Law of Motion, what must we as scientists ignore when using the f = ma formula?

A

You must ignore friction and air resistance that slows everything down on Earth.

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41
Q

How much force would be needed to pull my 25kg little brother in a sled at 2.5m/s2?

A

62.5N

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42
Q

A 400lb wrestler wants to accelerate a 100kg weight at 5m/s2. How much force will he need to push the weight?

A

500N

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43
Q

A matchbox car weighing 100g is traveling at .5 m/s². How much force was needed to cause this acceleration?
(Dont forget: 1kg=1000g or 1g=.001kg)

A

.05N

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44
Q

A boulder is accelerated to 4 m/s² with 10,000N worth of force. How much did the boulder weigh

A

2,500kg

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45
Q

How fast will a 80kg object accelerate if 3,000N of force are applied to it?

A

37.5m/s²

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46
Q

Can I move an object with a mass of 100kg and accelerate it to 2m/s2 if I push on it with 200N worth of force?

A

Yes, that is exactly enough force to accelerate that object to 2m/s2.

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47
Q

How much force would be needed to get a .5kg baseball to accelerate at 10m/s2? (Prove on paper!)

A

5N

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48
Q

1. A 2,000kg race car to move with 22,400N worth of force applied by its engine.

1/ 1
Which scenario has the faster acceleration?

A

The motorcycle has more than twice the acceleration of the race car.

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49
Q

If my truck pushes on the back of a 1,500kg non-running vehicle with 2,500N of force, how fast would the car accelerate?

A

1.6m/s2

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50
Q

Newton’s 2nd Law of Motion states:

A

How fast an object accelerates depends on its mass and the force applied to it.

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51
Q

If you were to TRIPLE the mass of the 9mm pistol bullet to .0225kg at 353m/s, how much kinetic energy would the bullet now have? (Show you work)

go to doc for picture

A

1,401 Joules

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52
Q

How does the line represented on a graph look when plotting increasing speed vs kinetic energy changes?

A

A curving upward line.

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53
Q

If the .22 rifle bullet increase his speed to 670m/s with its mass of .003kg, which bullet on the chart would be the most similar in its amount of kinetic energy? (Be able to prove it with KE amounts in Joules!) Show your work on the paper

A

KE would be exactly the same as the 357 Magnum bullet.

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54
Q

What would you need to do to an AR-15 bullet to get it to have approximately the same amount of kinetic energy as a 9mm bullet? (Show how you figured it out!)

A

Reduce its speed by 1/2.

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55
Q

When drawing a graph of the change in mass and the subsequent change in Kinetic Energy, what would the line you draw on the graph look like?

A

Straight upward diagonal line.

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56
Q

FORMULA for Kinetic Energy: KE = .5 mv^2 (velocity squared)

How much kinetic energy would a 2,000kg pickup truck have if it is traveling at a speed of 20 m/s?

(Show your math on a separate sheet of paper!)

A

400,000 Joules

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57
Q

How does the line represented on a graph look when plotting increasing MASS vs kinetic energy changes?
REPLACE the word velocity on the X-axis with Mass. Sorry :( (picture is the google doc)

A

b.

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58
Q

Which would have more energy, a hockey puck with a velocity of 108m/s or Tiger Woods golf ball with a mass of .368kg? ( picture for it is in the google doc)

A

Tiger Woods golf ball has 212J more KE.

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59
Q

What effect does doubling the speed of an object have on its kinetic energy?

A

It quadruples the kinetic energy.

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60
Q

If you triple the mass of the 357 Magnum bullet, would it have as much kinetic energy as the AK-47 bullet?

(Show your math on a separate sheet of paper!) ( picture is in the google doc)

A

The 357 Magnum bullet would still be 29 Joules of energy less than the AK-47 bullet.

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61
Q

If you reduce the speed of an object with a mass of 100 kg traveling at a current speed of 4m/s in half, how does this affect its kinetic energy? (Prove it with math!)

A

It cuts the kinetic energy of the original amount to 1/4th, which is now only 200 Joules.

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62
Q

How is the height of a wave different than the amplitude of a wave?

A

The amplitude is from the rest position to the crest or trough, and height is from trough to crest.

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63
Q

The disturbance that propagates energy through matter is called a _________________.

A

wave

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64
Q

What is the same as a wavelength but measured in time?

A

the period

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65
Q

If a wave has a period of 1/36 of a second, what is the frequency of that wave?

A

36 Hz

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66
Q

Increasing only the frequency of a sound wave causes what to happen?

A

Gives the sound a higher pitch.

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67
Q

Which is which? Drop and drag your answers. (picture is in the google doc)

A

1st= longitudinal

2nd=transverse

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68
Q

If there is no energy or disturbance in a medium (material), what will you see?

A

no waves

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69
Q

Which wave has more energy and less energy. Drop and drag your answers. (pics in google docs)

A

1st=more energy

2nd=less energy

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70
Q

How is a pulse different from a periodic wave?
A pulse is only one wave, where periodic waves are many repeated waves.
A pulse is only one wave, where periodic waves are many repeated waves.

Periodic waves are much larger than the much shorter pulse waves.
Periodic waves are much larger than the much shorter pulse waves.

Pulse waves are much taller waves that periodic waves.
Pulse waves are much taller waves that periodic waves.

A pulse is many waves where periodic waves are only a single waves.

A

A pulse is only one wave, where periodic waves are many repeated waves.

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71
Q

THINK about it before you answer. MAYBE even draw it!
When you measure the time it takes a particle to move from the rest position, all the way one way, then all the way the other (passing the rest position,) then back to the rest position, this is called a ____________ (or cycle).

A

period

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72
Q

DRAW IT if it helps!

What happens to the wavelength when you increase the Amplitude?

A

nothing

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73
Q

In the picture below, describe the wavelength if each line has a value of 1cm. (pic in google doc)

A

3 cm

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74
Q

DRAW IT if it helps!

What happens to the wavelength when you increase the frequency?

A

it gets shorter

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75
Q

Doubling the frequency of a wave ________ the energy of the wave.

A

doubles

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76
Q

What are mechanical waves?

A

Waves that use a medium

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77
Q

Which wave has the most energy?(pic in google docs)

A

Blue

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78
Q

What frequency range are most humans able to hear?

A

20-20,000Hz

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79
Q

Decreasing only the amplitude of a sound wave causes what to happen?

A

Makes the sound quieter.

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80
Q

Which has a greater effect on energy, doubling the amplitude or doubling the frequency of a wave?

A

Increasing the amplitude quadruples the energy of the wave.

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81
Q

Either decreasing the number of waves per second or decreasing the height of waves from the rest position results in ___________________.

A

a loss of energy in the wave.

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82
Q

The particles move perpendicular to the energy

A

transverse wave

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83
Q

The particles move parallel to the energy

A

longitudinal wave

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84
Q

The energy in a longitudinal wave is moving down the medium in ______________________

A

compressions

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85
Q

How can you easily convert the frequency of a wave into the period of a wave?

A

Place the frequency amount on the bottom of a fraction and place a 1 on top.

86
Q 
pic in google doc
A=
B=
C=
D=
E=
F=
G=
From Ato D or from a=e
A 
A=crest
B=wavelength
C= positive amp
D= trough
E= negative amp
F= period
G= resting point
H= height of wave
87
Q

Doubling the amplitude of a wave _________ the energy of the wave.

A

quadruples

88
Q

When the wavelength gets closer together the frequency…..

A

gets higher pitched

89
Q

through which state of matter will sound waves travel the fastest?

A

Solids

90
Q

How fast do photons of light travel at all times?

A

300,000km/s

91
Q

Which is the correct explanation for why I see a black sweatshirt?

A

All of the colors of visible light are absorbed, none are reflected into your eyes. (This is why it heats up)

92
Q

Which color of visible light has the most energy in its waves and why?

A

Violet, because the wavelengths are the shortest.

93
Q

When measuring the amplitude of a transverse wave, you measure the furthest distance the particles move up and down from the _____________________.

A

resting position

94
Q

If I increase the distance of the back and forth motion (amplitude) of particles in a sound wave, what would happen?

A

You would have a louder sound.

95
Q

What is the correct description for “frequency”?

A

How many waves pass by a given point each second.

96
Q

Why does the pitch of a moving train’s horn lower as it passes by a railroad crossing?

A

The sound wave compression behind the train are spread further apart, causing a lower pitch.

97
Q

How do lightwaves travel?

A

As transverse waves.

98
Q

What is the only difference between ALL types of light on the Electromagnetic Spectrum? (radio waves to gamma rays)

A

Their wavelengths.

99
Q

Do photons of light energy change their speed when they transmit through transparent materials?

A

No, their speed always stays the same but it takes longer/shorter to get through the material because of the materials density.

100
Q

When yelling into a pillow the sound is being…..

A

Transmitted and absorbed

101
Q

Particles move back and forth parallel to the wave’s direction in this kind of wave.

A

A longitudinal wave.

102
Q

When light or mechanical waves interact with an object and bounce off, what is the term given to that reaction?

A

Reflecting

103
Q

What is an example of an translucent material?

A

a mirror

104
Q

Do humans enjoy being in the quietest rooms on the earth?

A

No, we are used to hearing noise reflections so none of them is very uncomfortable to us.

105
Q

What is the highest frequency that a human’s ear can still hear?

A

20,000 Hertz

106
Q

What is light actually made from?

A

Photons

107
Q

What is an example of an opaque material?

A

a mirror

108
Q

A disturbance that transfers energy from one place to another is called _________.

A

A wave

109
Q

Which of the following locations would have the greatest sound reflection?

A

A gymnasium

110
Q 
pics in google doc.
1=
2=
3=
4=
5=
6=
A 
1=transmitting 
2=reflecting
3=refracting
4=diffracting
5=absorbing
6=scattering
111
Q

Which material would not allow visible light to transmit?

A

Brick

112
Q

Which type of wave can travel through empty space?

A

Lightwaves

113
Q

Which type of wave requires a medium to travel through?

A

A mechanical wave

114
Q

How do LONGITUDINAL (compression) waves move particles when energy is transferring through them?

A

Back and forth

115
Q

What type of wave has its wavelength measured from the crest of one wave to the crest of the next wave?

A

A transverse wave

116
Q

Through which state of matter do light waves travel the fastest?

A

Gases

117
Q

If I want to change the PITCH of a sound to a lower note, what must I do to the sound wave?

A

Make the compressions further apart.

118
Q

Which type of data transfer can carry more information faster?

A

Digital

119
Q

Which type of data transfer is more reliable?

A

Digital

120
Q

Which data transfer uses fiber optics that use pulses of light to transfer data?

A

Digital

121
Q

Which type of a data transfer will lose its reliability over long distances?

A

Analog

122
Q

Which type of data is continuous?

A

Analog

123
Q

Which type of data transfer can humans hear?

A

Analog

124
Q

Which type of data transfer is binary?

A

Digital

125
Q

Which type of data doesn’t lose its quality as you copy it?

A

Digital

126
Q

Which type of data is newer?

A

Digital

127
Q

Which type of data are radio waves?

A

analog

128
Q

Which type of data travels with a curvy sine wave?

A

Analog

129
Q

Which type of data travels in a boxy on off type way? _ _ _

A

Digital

130
Q

Can digital signals break down over long distances and why?

A

Yes, but because they are only 1s and 0s they can still be read even if they are broken down.

131
Q

Mr. Haydamacker has 2 kids is what type of data?

A

Quantitative

132
Q

Mr. Haydamacker is wearing a red Santa hat is what type of data?

A

Qualitative

133
Q

Can transfer data……

A

both

134
Q

becomes less reliable over long distances……

A

analog

135
Q

Flashlight ……

A

analog

136
Q

Can copy over and over …..

A

digital

137
Q

Electromagnetic waves…..

A

analog

138
Q

Vinyl records…..

A

analog

139
Q

Blue rays…..

A

digital

140
Q

Fiber Optical cables……

A

digital

141
Q

1s and 0s…..

A

digital

142
Q

Flash drives……

A

digital

143
Q

Large Storage capacity…..

A

digital

144
Q

Small storage capacity……

A

analog

145
Q

Human hearing………..

A

analog

146
Q

Binary……

A

digital

147
Q

Copies lose clarity over time……

A

analog

148
Q

iPhones……

A

digital

149
Q

VHS tapes….

A

anallog

150
Q

Walkie Talkies…..

A

analog

151
Q

Can store data…..

A

both

152
Q

Has no disadvantages

A

neither

153
Q

Which is ONE of the reasons a Digital signal is more reliable?

A

Digital signals are more reliable because they only have 1s and 0s so it is harder to lose parts of the signal.

154
Q

Which statements is true about the reliability of different signals?

A

Digital signals are more reliable because they do not break down as they are copied.

155
Q

Which statements is true about the reliability of different signals?

A

Analog signals are less reliable because they break down as they are copied.

156
Q

Which statements is true about the reliability of different signals?

A

Analog signals are less reliable because they are continuous while digital is made of “ons and offs” so it is harder to lose data.

157
Q

Which type of data transfer travels at a faster speed?

A

Neither, they travel at the same speed

158
Q

Which magnet would be the strongest with the same power source? (pic in google docs)

A

200

159
Q

What substance below is attracted to magnets?

A

Iron

160
Q

What characteristics do magnetic substances have?

A

They can push or pull objects they are not touching

161
Q

What must happen for an electromagnet to have a magnetic field?

A

It must be connected to an electrical source.

162
Q

What happens when two north poles of magnets are placed together?

A

They repel

163
Q

How is Earth’s magnetic field similar to that of a magnet?

A

It has North and South poles

164
Q

What is our best evidence that Earth has a magnetic field?

A

A compass needle lines up with it.

165
Q

Earth’s magnetic field and a bar magnet both attract particles the strongest to the same locations. Where are they?

A

the North and South poles

166
Q

What is different about a permanent magnet and an electromagnetic?

A

Electro magnetics can be turned off.

167
Q

Why is it bad to drop magnets?

A

The magnet becomes less magnetic

168
Q

Which substance is not magnetic?

A

Aluminum can

169
Q

What item listed below uses magnets to turn electric energy into mechanical energy.

A

Electric motor

170
Q

Which electromagnet would work better after being hooked to a (working) battery?

A

A tightly wound copper wire around an iron nail.

171
Q

If a magnet gets broken in half what happens?

A

You will have two small magnets

172
Q

What happens when a south and north pole of magnets are placed together?

A

They attract

173
Q

What item listed below uses magnets to turn mechanical energy into electric energy.

A

Electric generator

174
Q

What are the parts of certain metals that allow them to become magnetic?

A

Domains

175
Q

Why is it bad to heat magnets?

A

The magnet becomes less magnetic

176
Q

Are all metals magnetic?

A

no

177
Q

If you have a standard iron nail and rub it with another standard iron nail what would happen.

A

nothing but noise

178
Q

Which magnet would be the weakest with the same power source? ( pic in google doc)

A

50

179
Q

What substance below is attracted to magnets? Pop/soda can
Pop/soda can

Baseball bat
Baseball bat

Steel door
Steel door

Plastic spike

A

Steel door

180
Q

Why is it bad to store magnets together?

A

The magnet becomes less magnetic

181
Q

If you have a standard iron nail and rub it with the same pole of a magnet over and over what would happen.

A

as long as you rub the same direction it will make a magnet

182
Q

What directions do magnetic fields move?

A

From the north pole to the south pole

183
Q

How can you increase the push/pull force between magnets?

A

move them closer together

move them closer together

184
Q

If you add a stronger power source to a working electromagnet what would happen?

A

it would increase the magnetic field making the magnet stronger

185
Q

What is happening in this image? (image is in google doc)

A

The magnetic poles are opposite

186
Q

What is this image showing you? (pic on google doc)

A

A magnetic field

187
Q

Why can maglev trains move so fast?

A

Because they have very little friction from the track

188
Q

Put the planets in order starting from the furthest from the sun to the closest to the sun

A

neptune,uranus,saturn,jupiter,mars,earth,venus,mercury,sun

189
Q

Put the planets in order starting from the Largest

A

jupiter, saturn, uranus,neptune, earth, venus, then mars

190
Q

Which planet is the only one to have confirmed life?

A

Earth

191
Q

Why is Pluto not a planet anymore?

A

Its orbit is not mostly clear of other objects.

192
Q

Where are the gas and ice giants located in our solar system?

A

The last four planets in our solar system

193
Q

How many official planets are in our solar system?

A

8

194
Q

What makes terrestrial planets different than the Jovian planets?

A

Terrestrial planets have a solid rocky surface Jovian’s do not.

195
Q

Which planet is the most similar in size to Uranus?

A

Neptune

196
Q

Which planet is the most similar in size to Earth?

A

venus

197
Q

Where is the asteroid belt located?

A

Between the orbit of Mars and Jupiter

198
Q

Where is the Kypier belt located?

A

Past the orbit of Neptune

199
Q

How much wider than Earth is Jupiter?

A

11 times

200
Q

Where is luna located?

A

In orbit around Earth

201
Q

What is the Oort Cloud?

A

The furthest objects the suns gravity can hold

202
Q

Which planet is known for its rings?

A

Saturn

203
Q

Put the planets in order starting from the closest to the sun to the furthest from the sun

A

mercury, venus,earth, mars, jupiter, saturn, uranus, neptune

204
Q

Put the planets in order starting from the smallest.

A

mercury, mars, venus, earth, neptune, uranus, saturn

205
Q

What is the name of our solar system?

A

It doenst have a name

206
Q

An object that orbits a planet or asteroid?

A

Moon

207
Q

Which objects gets burnt up in our atmosphere. “A shooting star”

A

meteor

208
Q

. An object with a mass of 1500 g (grams) accelerates 10.0 m/s2 when an unknown force is applied to it. What is the amount of the force?

A

f=ma
m:1.5kg

a:10.0m/s

F: ?
(Show you work and do all 4 steps!)
F=1.5x10.0
F=15n

209
Q

. An object accelerates 3.0 m/s2 when a force of 6.0 newtons is applied to it. What is the mass of the object? ___________________________

A

m=f/a
m:?

a:3.0

F:6.0
(Show you work and do all 4 steps!)
M= 6.0/3.0
M=2kg

210
Q

An object with a mass of 2300 g has a force of 6.2 newtons applied to it. What is the resulting acceleration of the object? ________________________

A

A= f/m

m: 2300
a: ?

F: 6.2
(Show you work and do all 4 steps!)
A: 6.2/2.3
A:2.69
A:3.0m/s

science (1 decks)

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