Force and Energy (Worksheets)

Section A
1) Write TRUE or FALSE for each statement below.

  a) Friction is a force that goes against the direction of an object's movement.                                

  b) The treads of a tyre reduce the friction produced when a car moves.                                          

  c) It is easier to push a box over grass than over a marble floor.                                                      

  d) A hovercraft reduces friction by forming an air cushion below it when it moves.                            

2) Underline the correct words for the statements below.

  a) Pushing and pulling are (forces, energy)

  b) When an object moves towards you, you are (pulling , pushing it)

  c) When you are pushed, you can (see, feel) the force on you.

  d) A combination of pushing and pulling is called (friction, twisting).

  e) (Cycling, Dragging ) uses a pushing force.

Section B
1) The following information shows four situations

   P - A flag waves in the wind
   Q - A plasticine changes shape when it is squeezed
   R - A moving ball moves faster when it is kicked
   S- A moving marble on a surface will eventually stop

Which shows the effects of force
  A. P and Q
  B. P, R and S
  C. Q, R and S
  D. P, Q, R and S

2)Wong Nam wants to find out how the mass of an object can affect friction. What should he keep the same in his investigation to make the test fair?

I- The surface on which the object moves
II- The distance the object travels
III- The force applied to make the object move

A. I and II only
B. I and III only
C. II and III only
D. I, II and III

3) Which of the following are not factors that affect friction?

I- Surface are of objects in contact
II- Mass of an object
III- Roughness of a surface
IV- Speed of a moving object

A. I and II only
B. I and IV only
C. II,III and IV only
D. I, II, III and IV

4) What are the advantages of friction?

I- Objects can be held without slipping
II- Wears out the brake pads of a bicycle
III- People can walk without slipping and falling
IV- Rusty hinges make doors hard to push

A. I and III only
B. I, II and IV only
C. II and III and IV only
D. I, II and III and IV

5) What is meant by friction?

A. It is a force that pulls objects to the ground
B. It is a force that makes objects move
C. It is a force that goes against a moving object
D. It is a force that can be seen.

6) A plastic bottle becomes crushed when squeezed. What is proven in this activity?

A. Force changes the position of an object
B. Force moves a stationery object
C. Force changes the direction of a moving object
D. Force changes the shape of an object.

7) The information below shows three situations

P- The ball stops moving when blocked
Q- The movement of a marble changes when an opposing force is applied on it
R- A can becomes crushed when squeezed

What situations show the effects of force?

A. P and Q
B. P and R
C. Q and R
D. P, Q and R




Section A
1) (a) TRUE  (b)FALSE  (c)FALSE ( d)TRUE
2) (a)Force (b)pulling (c)feel (d) twisting (e) Cycling

Section B
1)D 2)B 3)B 4)A 5)B 5)