The following topic has been broken down into 4 components. Click on the part you wish to learn about in more detail below.

Speed = Distance/Time	Measuring the Force
Newtons Laws of Motion	Additional Forces Content
The Scientific Method	Ticker Timer
Car Crash Investigations	Working with Average Speed

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Topic Revision

Vocabulary Terms

Write the definitions for and give examples of the following terms:

• force
• Newton
• mass
• weight
• gravity
• field
• electromagnet
• attract
• repel
• lubricant
• matter
• Inertia

1. Describe changes that can take place when a force is acting on an object.
2. Name three contact forces and three non-contact forces.
3. Explain what net force is on an object.
4. Describe how a spring balance is used.
5. Describe what happens to the motion an object when the forces on it are unbalanced.
6. Define friction and identify three everyday situations where you can observe friction acting.
7. Explain why friction can be a bad thing and how it is reduced in some situations.
8. Explain how we can give an object an electric charge. 
9. Describe two everyday situations where electrostatic charges can be observed
10. There are 2 types of electrostatic charges. What are they and how do they react when they are brought near each other?
11. Describe what happens to magnetic poles when they are brought close to each other.
12. What sort of materials are affected by magnets?
13. Describe how to make an electromagnet. How is the field made stronger?
14. Describe how a compass works.
15. Identify five everyday situations where magnets and electromagnets are used.
16. Summarise Newtons 3 laws of motion.
17. Describe three safety features of cars and explain the forces involved.
18. Explain what gravity is.
19. What would happen to your mass and weight if you were to travel to the moon?
20. What factors influence the strength of a magnetic field?