Force and Motion

Activity Sheet 1

Programme Questions

Speed

1. What is meant by ‘average speed’?
2. 2. What is a light gate?
3. 3. How can two light gates connected to timers be used to measure the time a vehicle takes to travel between two points?
4. 4. Sketch on these axes the graph for an object moving at constant speed:

   

5. On the same axes above, sketch and label the graphs for an object moving at a constant speed which is:
   1. a) faster
   2. b) slower

1. Complete this explanation:
We say a car is accelerating if ………….

2. How does increasing the pulling force on a vehicle affect the acceleration?

Gravity and Falling

1. Does the mass of a diver affect how fast the diver falls?
2. Why does a larger object fall slower than a smaller object with the same mass?
3. If a melon is dropped from the top of a tall building, at what rate does it accelerate?