Key Stage 3 Science Book 1 Assessments
Forces and their Effects (Blue level)
1. How is a force represented on a diagram? [1 mark]
a) As a line
b) As an arrow
c) As a push
d) As a pull
2. What is the unit of measurement for force? [1 mark]
a) Pound
b) Newton
c) Kilogram
d) Tonne
3. What happens when you apply a force to a football? Choose three answers. [1 mark]
a) Its size changes
b) Its shape changes
c) Its colour changes
d) Its speed changes
e) Its mass changes
4. Look at the table of data about the Earth, Moon and Mars. It shows what Phil’s mass and weight are
on the Earth and the Moon.
What would Phil’s mass be on Mars? [1 mark]
a) 100 kg
b) 50 kg
c) 1000 kg
d) 170 kg
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Key Stage 3 Science Book 1 Assessments
5. Look at the table of data about the Earth, Moon and Mars. It shows what Phil’s mass and weight are
on the Earth and the Moon.
What would Phil’s weight be on Mars? [1 mark]
a) 38 N
b) 500 N
c) 170 N
d) 380 N
6. The picture shows a skydiver falling at terminal velocity, and the two forces acting on him.
What does ‘terminal velocity’ mean? [1 mark]
a) A steady speed when the air resistance force balances the force of weight
b) The speed the skydiver reaches just after jumping from the plane
c) The speed the skydiver reaches just before reaching the ground
d) The speed that will kill him if his parachute does not open
© HarperCollinsPublishers 2014
Key Stage 3 Science Book 1 Assessments
7. Look at the picture. It shows three forces acting on a glider.
Match the force description to the force arrows A-C. [1 mark]
Lift
C
Air resistance (drag)
A
Weight
B
8. A glider is designed to fly for as long as possible. Match each design feature to how it helps the glider
to fly.
[1 mark]
It is made from strong and light
materials
to reduce air
resistance
It has long wings with a large area
to reduce weight
It is streamlined
to increase lift
© HarperCollinsPublishers 2014
Key Stage 3 Science Book 1 Assessments
9. The man in the picture is trying to lift the box using a lever, but the box is not moving. What could he
do to make the box move? Choose two answers. [1 mark]
a) Use a larger effort force
b) Move the load further away from the fulcrum
c) Use a longer lever
d) Use a taller fulcrum
10. What is meant in science by the term ‘elastic behaviour’? [1 mark]
a) Stretches when a force is applied
b) Bends when a force is applied
c) Returns to original shape when the force is removed
d) Breaks when a force is applied
11. Look at the picture of the shark.
Explain how the shark’s streamlined shape helps it to survive. [2 marks]
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Key Stage 3 Science Book 1 Assessments
12. Two forces act on an arrow as it flies through the air: air resistance and weight. How do these forces
affect the movement of the arrow in the air? [2 marks]
13. It takes about four hours to drive 320 kilometres from Manchester to London. Calculate the average
speed of this journey in kilometres per hour. [2 marks]
14. Two pupils investigated the force needed to slide a wooden block across a surface. They added an
additional load on top of the wooden block to find out how this changed the friction force. They plotted
their results on this graph.
Predict the force needed to slide the block if it had an additional load of 7 kg. Explain how you get your
answer.
[2 marks]
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Key Stage 3 Science Book 1 Assessments
15. Describe two examples of where a high frictional force is an advantage, and two examples where it is
a disadvantage. [4 marks]
16. Look at the picture of Alan and Becky on a see-saw.
Explain two different ways Alan and Becky could make the see-saw balance. [2 marks]
17. Two pupils added loads to a spring and measured how much it compressed. The graph shows their
results.
Interpret the graph to explain the results. [2 marks]
© HarperCollinsPublishers 2014
Key Stage 3 Science Book 1 Assessments
18. Explain how forces can affect the shape, speed and direction of movement of a football. [4 marks]
© HarperCollinsPublishers 2014