Topic 2 Flashcards
1
Q
What do vectors include?
A
- Displacement - Force
- Velocity - Acceleration
2
Q
What is acceleration?
A
Acceleration is a change in velocity. Acceleration is a vector quantity.
3
Q
What is mass?
A
Mass:
- Is the amount of matter in an object
- Is measured in kilograms (kg)
4
Q
What is weight?
A
Weight:
- Is the force of gravity on an object
- Is measured in Newtons (N)
5
Q
What are factors which affect stopping distance?
A
- Mass of vehicle
- Speed
- Reaction Time
- State of brakes
- State of road
- Amount of friction between tyres and roads
6
Q
What are some car safety features?
A
- Crumple zones
- Airbags
- Seat bealts
7
Q
`What is needed to make an object change speed?
A
Force
