# Motions, forces, momentum etc.etc. Flashcards Preview

## Physics | GCSE - Edexcel - Additional > Motions, forces, momentum etc.etc. > Flashcards

Flashcards in Motions, forces, momentum etc.etc. Deck (16)
1
Q

What is the distance is straight lines called?

A

Displacement.

2
Q

What is velocity?

A

The speed and direction of an object.

3
Q

On a distance time graph what is the gradient equal to?

A

The speed.

4
Q

What do horizontal lines on a distance time graph represent?

A

Stationary/not moving.

5
Q

The steeper the gradient on a distance time graph the _________ the speed.

A

Quicker/higher.

6
Q

What is acceleration?

A

Change in velocity.

7
Q

What are the units for acceleration?

A

㎨ (metres per second squared)

8
Q

What do horizontal lines above the x axis represent on velocity time graphs?

A

Constant velocity.

9
Q

How is a stationary object shown on a velocity time graph?

A

A straight like on y=0.

10
Q

How do you find the distance on a velocity time graph?

A

The area underneath.

11
Q

What is a force?

A

A vector quantity that can make objects change speed, shape or direction.

12
Q

True or False:

If the resultant for is zero it means the object is stationary.

A

False, it also means that the object is moving at a constant velocity.

13
Q

What is force measured in?

A

Newtons.

14
Q

What is mass?

A

The quantity of matter there is.

15
Q

What is weight?

A

The measure of quantity there is with forces acting on it, for example gravity.

16
Q

True or false:

On the surface of the Earth an object with a mass of 1 kg has a weight of about 10 N.

A

True.