Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

veds science > forceparticles > Flashcards

forceparticles Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Which state/s of matter can be compressed?

A

Gas only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which state/s of matter flow

A

Liquids and gases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which state/s of matter have a fixed volume?

A

Solids and liquids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Draw the particle model diagram for a solid

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Draw the particle model diagram for a liquid

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Draw the particle model diagram for a gas

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Describe the arrangement of particles in a solid

A

Regular. Particles are touching

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Describe the arrangement of particles in a liquid

A

Random. Particles are touching

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Describe the arrangement of particles in a gas

A

Random. Particles are far apart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe the movement of particles in a solid

A

Vibrate about a fixed position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Describe the movement of particles in a liquid

A

Move around each other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Describe the movement of particles in a gas

A

Move quickly in all directions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the melting point of water?

A

0 degrees celsius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the freezing point of water?

A

0 degrees celsius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How do the melting and freezing points of a substance compare?

A

They are the same

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the boiling point of water?

A

100 degrees celsius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What causes pressure in a gas?

A

Gas particles colliding with the wall of their container

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What happens to the pressure of the gas when we increase the temperature?

A

The pressure increases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Name the force between two surfaces sliding over one another, that causes them to heat up and wear away.

A

Friction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Name the force that pulls objects towards the centre of the Earth

A

Weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Name the force acting against any object that is moving through the Earth’s atmosphere.

A

Air resistance/drag

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Name the force pushing upwards on an object flying in the air.

A

Lift

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Name the force pushing upwards on an object in a fluid.

A

Upthrust

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Which force is a push caused by an engine (e.g. aircraft jet engine)?

A

Thrust

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is the unit of force?

A

newton, N

26
Q

What instrument can we use to measure force in a lab?

A

newtonmeter

27
Q

If forces on an object are not balanced what do we have?

A

A resultant force

28
Q

If there is a resultant force on an object, what will happen?

A

Object will accelerate or decelerate

29
Q

Describe the motion of the car

A

Stationary

30
Q

Describe the motion of the car

A

Accelerating

31
Q

Describe the motion of the car

A

Decelerating

32
Q

Describe the motion of the car

A

Moving at constant speed

33
Q

Name the forces acting on the car

A

Up - normal contact force, Down - weight, forward - friction (look back to your notes if you are unsure why), Back - air resistance/drag

34
Q

What is the unit of weight?

A

newton, N

35
Q

what is the unit of mass?

A

kilogram, kg

36
Q

What is the formula that links mass and weight

A

weight = mass x gravitational field strength

37
Q

What is the Earth’s gravitational field strength?

A

10 N/kg (make sure you get the unit right!)

38
Q

What will happen to my mass if I go to the Moon?

A

stays the same

39
Q

What will happen to my weight if I go to the Moon?

A

It will change (decrease - the Moon has a smaller mass and radius that the Earth so the gravitational field strength is lower than on Earth)

40
Q

Describe the forces acting on a floating object

A

Weight = upthrust. These two forces are balanced. There is no resultant force

41
Q

For an object in a fluid, if weight > upthrust, what will happen?

A

The object will sink

42
Q

What causes upthrust?

A

There is a higher pressure at the bottom of the object than the top.

43
Q

List 2 characteristics of a streamlined shape

A

Rounded front
Slowly tapering tail
Smooth shape with no projections

44
Q

Name two ways to reduce resistive forces

A

Streamlining
Lubrication (reduces friction between moving parts)

45
Q

How do we calculate speed

A

speed = distance / time

46
Q

If you know the speed of an object and time taken to travel a certain distance, how can you calculate distance?

A

distance = speed x time

47
Q

If you know the distance an object travelled and the speed it travelled at, how can you calculate the time it took?

A

time = distance / speed

48
Q

The image shows a distance-time graph. Describe the motion of the object

A

It is accelerating (the graph is getting steeper, this means that the speed is increasing)

49
Q

The point a lever rotates about is known as….

A

Pivot

50
Q

In a lever, the distance between the pivot and where the force is applied is known as…

A

lever arm

51
Q

If I want to increase the turning effect of a lever, what 2 things could I change?

A

Increase the force applied
Increase the length of the lever arm (i.e. distance from where the force is applied to the pivot)

52
Q

What is another word for turning effect?

A

moment

53
Q

What name is given to a type of joint that moves backwards and forwards (e.g. a knee)

A

Hinge

54
Q

What name is given to a type of joint that allows movement in a circle (e.g. a shoulder)

A

ball and socket

55
Q

What name is given to a type of joint that allows movement around an axis (e.g. an ankle)

A

pivot

56
Q

What is a pair of muscles that work in opposition to each other called?

A

antagonistic pair

57
Q

What happens to the shape of a muscle when it contracts?

A

It gets shorter and fatter

58
Q

What happens to the shape of a muscle when it relaxes?

A

It gets longer and thinner

59
Q

What links bone to bone?

A

Ligament

60
Q

What links bone to muscle?

A

Tendons

61
Q

Why do we have fluid in our joints

A

To reduce friction between bones

veds science (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions