Forces and Movement

Question 1

When an unbalanced force acts on an object along/against the line in which the object is moving

Answer 1

The object will accelerate/decelerate

Question 2

The bigger the unbalanced force

Answer 2

The bigger the acceleration

Question 3

Same force but different mass

Answer 3

Smaller object will have larger acceleration. Bigger object will have smaller acceleration.

Question 4

Same mass but different force

Answer 4

Larger force will have larger acceleration. Smaller force will have smaller acceleration.

Question 5

Force =

Answer 5

mass x acceleration (F=ma)

Question 6

Stopping distance

Answer 6

Sum of the thinking distance and braking distance

Question 7

Thinking distance and factors that affect it

Answer 7

The thinking distance is the time before the brakes are applied. It can be affected by tiredness, drugs and poor visibility. Distance traveled depends on the speed of the vehicle.

Question 8

Braking distance and factors that affect it

Answer 8

The distance traveled after the brakes have been applied. It is affected by brake and tire condition and the condition of the road surface.