AQA GCSE Physics Additional Unit 2 Revision Cards

HideShow resource information
What are speed and velocity measured in?
Metres per second (m/s).
1 of 21
What is the difference between speed and velocity?
Speed is just how fast you're going (e.g. 20 m/s) - the direction doesn't matter. Velocity is the speed in a given direction, e.g. 20 m/s north.
2 of 21
What do flat sections represent in a distance-time graph?
It shows where the object is stationary - it's stopped.
3 of 21
What do straight uphill (/) or downhill (\) sections represent in a distance-time graph?
They show that the object is travelling at a constant speed.
4 of 21
What do curves represent in a distance-time graph?
Curves show a change in speed.
5 of 21
What does acceleration mean?
Acceleration is how quickly the velocity is changing. This change in velocity can be a change in speed or a change in direction or both.
6 of 21
What is the equation for acceleration?
Acceleration = Change in Velocity / Time taken
7 of 21
What do flat sections represent in a velocity-time graph?
Flat sections shows the object is travelling at a steady speed.
8 of 21
What do uphill sections represent in a velocity-time graph?
Acceleration.
9 of 21
What does a curved graph in a velocity-time graph represent?
A curved graph means the object has a changing velocity.
10 of 21
Define gravitational force.
Gravitational force is the force of attraction between all masses.
11 of 21
What is the difference between weight and mass?
Mass is the amount of something in an object. The mass of an object never changes - no matter where it is in the universe. Weight is caused by the pull of the gravitational force. Weight is a force measured in newtons. Mass in not a force.
12 of 21
What is the formula for mass, weight and gravity?
Weight = mass x gravitational field strength.
13 of 21
What is resultant force?
The overall force of an object.
14 of 21
What does a resultant force mean?
It means that there's a change in velocity and the object will move.
15 of 21
What happens if the resultant force on a stationary object is zero?
The object will remain stationary.
16 of 21
What happens if there is no resultant force on a moving object?
It'll just carry on moving at the same velocity.
17 of 21
What happens if the resultant force is not zero?
The object will accelerate in the direction of the force.
18 of 21
What is the equation for resultant force?
Resultant force = mass x acceleration.
19 of 21
What is resultant force measured in?
Newtons.
20 of 21
What happens when two objects interact?
The forces they exert on each other are equal and opposite.
21 of 21

Other cards in this set

Card 2

Front

What is the difference between speed and velocity?

Back

Speed is just how fast you're going (e.g. 20 m/s) - the direction doesn't matter. Velocity is the speed in a given direction, e.g. 20 m/s north.

Card 3

Front

What do flat sections represent in a distance-time graph?

Back

Preview of the front of card 3

Card 4

Front

What do straight uphill (/) or downhill (\) sections represent in a distance-time graph?

Back

Preview of the front of card 4

Card 5

Front

What do curves represent in a distance-time graph?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Electricity resources »