# P3

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What is the unit of speed?
m/s or km/h
1 of 10
A car travels 600m in 20 seconds. What is its average speed?
30m/s
2 of 10
The speed of a car changes from 20m/s to 10m/s. Is it accelerating or deccelerating?
Decelerating.
3 of 10
Find the acceleration of a cat that goes from 0 to 5m/s in 2 seconds when chasing a mouse.
2.5m/s(squared)
4 of 10
Two cars, A and B, have the same engine. Car A has a larger mass than Car B. Which has the greater acceleration?
Car B.
5 of 10
What do you call the distance travelled by a car in stopping after the brakes have been applied?
Braking Distance.
6 of 10
Sam lifts an 8N weight and a height of 3m. Ali lifts a 10N weight and a height of 4m. Who does more work?
Ali.
7 of 10
Suggest why a car uses more fuel per kilometre when carrying a heavy load.
A larger mass means the car must gain more kinetic energy, so it uses more fuel.
8 of 10
Which two car safety features protect a drivers chest in an accident?
The seatbelt and the airbag.
9 of 10
What effect does a streamlined shape have on the motion of a car?
It increases the cars top speed.
10 of 10

## Other cards in this set

### Card 2

#### Front

A car travels 600m in 20 seconds. What is its average speed?

30m/s

### Card 3

#### Front

The speed of a car changes from 20m/s to 10m/s. Is it accelerating or deccelerating?

### Card 4

#### Front

Find the acceleration of a cat that goes from 0 to 5m/s in 2 seconds when chasing a mouse.

### Card 5

#### Front

Two cars, A and B, have the same engine. Car A has a larger mass than Car B. Which has the greater acceleration?