Forces Flashcards

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

What do forces do?

A

Forces explain why objects move in the way they do or why they don’t move at all

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

Describe a force

A

You can’t see forces but you can see their effect

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

Name 3 types of forces

A
Contact force
Friction
Air resistance
Gravity
Reaction force
Magnetic force
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe what the force of gravity does

A

Gravity is a non-contact force that pulls things down

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

What is reaction force?

A

The force that reacts against gravity with an equal amount of power

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

What does upthrust do?

A

Upthrust supports you when you float

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

What is a non-contact force?

A

A force that doesn’t require 2 things touching each other

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

What is a contact force?

A

A force that requires 2 things touching each other

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

What are 2 types of non-contact forces?

A

Gravity

Magnetic

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

How do you measure forces

A

With a newton metre. It’s in newtons-surprising isn’t it

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

What force stops us from constantly falling over

A

Friction🎉

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

What are unbalanced forces

A

When one force is greater than another

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

Force

A

The ability to move stuff without touching them

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

Force diagram

A

A diagram showing the result of which force is stronger at a particular moment

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

Interaction pairs

A

Two forces acting against each othe

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

Newtons

A

The measurment of forces

17
Q

Newton metre

A

The device you use to measure the strength of a force

18
Q

Deform

A

A force that changes something’s shape

19
Q

Compress

A

Squeezing something to it’s limit

20
Q

Extension

A

Making something bigger

21
Q

Elastic limit

A

The longest something can be stretched

22
Q

Hooke’s law

A

the strain in a solid is proportional to the applied stress within the elastic limit of that solid.

23
Q

Balanced forces

A

Equal forces

24
Q

Weight

A

Mass x gravity

25
Q

Air resistance

A

The force of air hitting something going fast

26
Q

Water resistance

A

The force that helps things float

27
Q

Streamlined

A

Something that can easily cut through air

28
Q

3 affects of forces

A

Position, speed and shape

29
Q

Tension

A

The level of weight hanging on something

30
Q

Resultant force

A

The stronger force

31
Q

Thrust

A

The force used to beat air resistance