science 8th grade

Question 1

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

Answer 1

not testable

Question 2

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?

Answer 2

independent variable

Question 3

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?

Answer 3

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

Question 4

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?

Answer 4

dependant variable

Question 5

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?

Answer 5

Control

Question 6

Which brand of vanilla ice cream tastes the best?

Answer 6

Not testable

Question 7

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

Answer 7

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

Question 8

In the Data section, what do you document?

Answer 8

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

Question 9

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.

Answer 9

6 because you must use bounce heights from every trial

Question 10

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

Answer 10

Testable

Question 11

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

Answer 11

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.

Question 12

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

Answer 12

Testable

Question 13

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

Answer 13

Not testable

Question 14

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.

Answer 14

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

Question 15

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

Answer 15

Hypothesis

Question 16

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!)

Answer 16

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

Question 17

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

Answer 17

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

Question 18

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?

Answer 18

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

Question 19

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?

Answer 19

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.

Question 20

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.

Answer 20

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

Question 21

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?

Answer 21

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

Question 22

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

Answer 22

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

Question 23

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

Answer 23

You are pushing with less than 200N of force

Question 24

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

Answer 24

The mailbox and the car would experience equal impact force.

Question 25

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

Answer 25

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

Question 26

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

Answer 26

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

Question 27

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

Answer 27

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

Question 28

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

Answer 28

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

Question 29

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

Answer 29

You are pushing with 200N of force

Question 30

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.

Answer 30

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

Question 31

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

Answer 31

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

Question 32

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

Answer 32

9.8m/s^2

Question 33

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

Answer 33

40kg

Question 34

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

Answer 34

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

Question 35

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

Answer 35

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

Question 36

Which statement is true about the statement..... "Is 2000N worth of force enough to accelerate a 500kg object to 6m/s²?"

Answer 36

You’d need 1,000N more

Question 37

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

Answer 37

Ping Pong ball

Question 38

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

Answer 38

4,500N

Question 39

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

Answer 39

11m/s2

Question 40

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

Answer 40

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

Question 41

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

Answer 41

62.5N

Question 42

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

Answer 42

500N

Question 43

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)

Answer 43

.05N

Question 44

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

Answer 44

2,500kg

Question 45

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

Answer 45

37.5m/s²

Question 46

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?

Answer 46

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

Question 47

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

Answer 47

5N

Question 48

1/ 1 Which scenario has the faster acceleration? #1. A 2,000kg race car to move with 22,400N worth of force applied by its engine. #2. A 210kg motorcycle with 5,000N worth of force applied by its engine.

Answer 48

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

Question 49

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?

Answer 49

1.6m/s2

Question 50

Newton's 2nd Law of Motion states:

Answer 50

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

Question 51

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

Answer 51

1,401 Joules

Question 52

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

Answer 52

A curving upward line.

Question 53

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

Answer 53

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

Question 54

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!)

Answer 54

Reduce its speed by 1/2.

Question 55

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?

Answer 55

Straight upward diagonal line.

Question 56

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!)

Answer 56

400,000 Joules

Question 57

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)

Answer 57

b.

Question 58

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)

Answer 58

Tiger Woods golf ball has 212J more KE.

Question 59

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

Answer 59

It quadruples the kinetic energy.

Question 60

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)

Answer 60

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

Question 61

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!)

Answer 61

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

Question 62

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

Answer 62

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

Question 63

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

Answer 63

wave

Question 64

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

Answer 64

the period

Question 65

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

Answer 65

36 Hz

Question 66

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

Answer 66

Gives the sound a higher pitch.

Question 67

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

Answer 67

1st= longitudinal | 2nd=transverse

Question 68

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

Answer 68

no waves

Question 69

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

Answer 69

1st=more energy | 2nd=less energy

Question 70

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.

Answer 70

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

Question 71

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).

Answer 71

period

Question 72

DRAW IT if it helps! | What happens to the wavelength when you increase the Amplitude?

Answer 72

nothing

Question 73

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

Answer 73

3 cm

Question 74

DRAW IT if it helps! | What happens to the wavelength when you increase the frequency?

Answer 74

it gets shorter

Question 75

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

Answer 75

doubles

Question 76

What are mechanical waves?

Answer 76

Waves that use a medium

Question 77

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

Answer 77

Blue

Question 78

What frequency range are most humans able to hear?

Answer 78

20-20,000Hz

Question 79

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

Answer 79

Makes the sound quieter.

Question 80

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

Answer 80

Increasing the amplitude quadruples the energy of the wave.

Question 81

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

Answer 81

a loss of energy in the wave.

Question 82

The particles move perpendicular to the energy

Answer 82

transverse wave

Question 83

The particles move parallel to the energy

Answer 83

longitudinal wave

Question 84

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

Answer 84

compressions

Question 85

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

Answer 85

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

Question 86

``` pic in google doc A= B= C= D= E= F= G= From Ato D or from a=e ```

Answer 86

``` A=crest B=wavelength C= positive amp D= trough E= negative amp F= period G= resting point H= height of wave ```

Question 87

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

Answer 87

quadruples

Question 88

When the wavelength gets closer together the frequency.....

Answer 88

gets higher pitched

Question 89

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

Answer 89

Solids

Question 90

How fast do photons of light travel at all times?

Answer 90

300,000km/s

Question 91

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

Answer 91

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

Question 92

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

Answer 92

Violet, because the wavelengths are the shortest.

Question 93

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

Answer 93

resting position

Question 94

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

Answer 94

You would have a louder sound.

Question 95

What is the correct description for "frequency"?

Answer 95

How many waves pass by a given point each second.

Question 96

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

Answer 96

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

Question 97

How do lightwaves travel?

Answer 97

As transverse waves.

Question 98

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

Answer 98

Their wavelengths.

Question 99

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

Answer 99

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

Question 100

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

Answer 100

Transmitted and absorbed

Question 101

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

Answer 101

A longitudinal wave.

Question 102

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

Answer 102

Reflecting

Question 103

What is an example of an translucent material?

Answer 103

a mirror

Question 104

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

Answer 104

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

Question 105

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

Answer 105

20,000 Hertz

Question 106

What is light actually made from?

Answer 106

Photons

Question 107

What is an example of an opaque material?

Answer 107

a mirror

Question 108

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

Answer 108

A wave

Question 109

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

Answer 109

A gymnasium

Question 110

``` pics in google doc. 1= 2= 3= 4= 5= 6= ```

Answer 110

``` 1=transmitting 2=reflecting 3=refracting 4=diffracting 5=absorbing 6=scattering ```

Question 111

Which material would not allow visible light to transmit?

Answer 111

Brick

Question 112

Which type of wave can travel through empty space?

Answer 112

Lightwaves

Question 113

Which type of wave requires a medium to travel through?

Answer 113

A mechanical wave

Question 114

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

Answer 114

Back and forth

Question 115

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

Answer 115

A transverse wave

Question 116

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

Answer 116

Gases

Question 117

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

Answer 117

Make the compressions further apart.

Question 118

Which type of data transfer can carry more information faster?

Answer 118

Digital

Question 119

Which type of data transfer is more reliable?

Answer 119

Digital

Question 120

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

Answer 120

Digital

Question 121

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

Answer 121

Analog

Question 122

Which type of data is continuous?

Answer 122

Analog

Question 123

Which type of data transfer can humans hear?

Answer 123

Analog

Question 124

Which type of data transfer is binary?

Answer 124

Digital

Question 125

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

Answer 125

Digital

Question 126

Which type of data is newer?

Answer 126

Digital

Question 127

Which type of data are radio waves?

Answer 127

analog

Question 128

Which type of data travels with a curvy sine wave?

Answer 128

Analog

Question 129

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

Answer 129

Digital

Question 130

Can digital signals break down over long distances and why?

Answer 130

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

Question 131

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

Answer 131

Quantitative

Question 132

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

Answer 132

Qualitative

Question 133

Can transfer data......

Answer 133

both

Question 134

becomes less reliable over long distances......

Answer 134

analog

Question 135

Flashlight ......

Answer 135

analog

Question 136

Can copy over and over .....

Answer 136

digital

Question 137

Electromagnetic waves.....

Answer 137

analog

Question 138

Vinyl records.....

Answer 138

analog

Question 139

Blue rays.....

Answer 139

digital

Question 140

Fiber Optical cables......

Answer 140

digital

Question 141

1s and 0s.....

Answer 141

digital

Question 142

Flash drives......

Answer 142

digital

Question 143

Large Storage capacity.....

Answer 143

digital

Question 144

Small storage capacity......

Answer 144

analog

Question 145

Human hearing...........

Answer 145

analog

Question 146

Binary......

Answer 146

digital

Question 147

Copies lose clarity over time......

Answer 147

analog

Question 148

iPhones......

Answer 148

digital

Question 149

VHS tapes....

Answer 149

anallog

Question 150

Walkie Talkies.....

Answer 150

analog

Question 151

Can store data.....

Answer 151

both

Question 152

Has no disadvantages

Answer 152

neither

Question 153

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

Answer 153

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

Question 154

Which statements is true about the reliability of different signals?

Answer 154

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

Question 155

Which statements is true about the reliability of different signals?

Answer 155

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

Question 156

Which statements is true about the reliability of different signals?

Answer 156

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

Question 157

Which type of data transfer travels at a faster speed?

Answer 157

Neither, they travel at the same speed

Question 158

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

Answer 158

200

Question 159

What substance below is attracted to magnets?

Answer 159

Iron

Question 160

What characteristics do magnetic substances have?

Answer 160

They can push or pull objects they are not touching

Question 161

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

Answer 161

It must be connected to an electrical source.

Question 162

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

Answer 162

They repel

Question 163

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

Answer 163

It has North and South poles

Question 164

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

Answer 164

A compass needle lines up with it.

Question 165

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

Answer 165

the North and South poles

Question 166

What is different about a permanent magnet and an electromagnetic?

Answer 166

Electro magnetics can be turned off.

Question 167

Why is it bad to drop magnets?

Answer 167

The magnet becomes less magnetic

Question 168

Which substance is not magnetic?

Answer 168

Aluminum can

Question 169

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

Answer 169

Electric motor

Question 170

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

Answer 170

A tightly wound copper wire around an iron nail.

Question 171

If a magnet gets broken in half what happens?

Answer 171

You will have two small magnets

Question 172

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

Answer 172

They attract

Question 173

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

Answer 173

Electric generator

Question 174

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

Answer 174

Domains

Question 175

Why is it bad to heat magnets?

Answer 175

The magnet becomes less magnetic

Question 176

Are all metals magnetic?

Answer 176

no

Question 177

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

Answer 177

nothing but noise

Question 178

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

Answer 178

50

Question 179

What substance below is attracted to magnets? Pop/soda can Pop/soda can Baseball bat Baseball bat Steel door Steel door Plastic spike

Answer 179

Steel door

Question 180

Why is it bad to store magnets together?

Answer 180

The magnet becomes less magnetic

Question 181

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

Answer 181

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

Question 182

What directions do magnetic fields move?

Answer 182

From the north pole to the south pole

Question 183

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

Answer 183

move them closer together | move them closer together

Question 184

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

Answer 184

it would increase the magnetic field making the magnet stronger

Question 185

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

Answer 185

The magnetic poles are opposite

Question 186

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

Answer 186

A magnetic field

Question 187

Why can maglev trains move so fast?

Answer 187

Because they have very little friction from the track

Question 188

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

Answer 188

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

Question 189

Put the planets in order starting from the Largest

Answer 189

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

Question 190

Which planet is the only one to have confirmed life?

Answer 190

Earth

Question 191

Why is Pluto not a planet anymore?

Answer 191

Its orbit is not mostly clear of other objects.

Question 192

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

Answer 192

The last four planets in our solar system

Question 193

How many official planets are in our solar system?

Answer 193

8

Question 194

What makes terrestrial planets different than the Jovian planets?

Answer 194

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

Question 195

Which planet is the most similar in size to Uranus?

Answer 195

Neptune

Question 196

Which planet is the most similar in size to Earth?

Answer 196

venus

Question 197

Where is the asteroid belt located?

Answer 197

Between the orbit of Mars and Jupiter

Question 198

Where is the Kypier belt located?

Answer 198

Past the orbit of Neptune

Question 199

How much wider than Earth is Jupiter?

Answer 199

11 times

Question 200

Where is luna located?

Answer 200

In orbit around Earth

Question 201

What is the Oort Cloud?

Answer 201

The furthest objects the suns gravity can hold

Question 202

Which planet is known for its rings?

Answer 202

Saturn

Question 203

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

Answer 203

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

Question 204

Put the planets in order starting from the smallest.

Answer 204

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

Question 205

What is the name of our solar system?

Answer 205

It doenst have a name

Question 206

An object that orbits a planet or asteroid?

Answer 206

Moon

Question 207

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

Answer 207

meteor

Question 208

. 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?

Answer 208

f=ma m:1.5kg a:10.0m/s F: ? (Show you work and do all 4 steps!) F=1.5x10.0 F=15n

Question 209

. 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? ___________________________

Answer 209

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

Question 210

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? ________________________

Answer 210

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 ```