Unit 6: Forces and movement

Pushes and pulls, forces that change shape, measuring forces with a forcemeter, and friction.

• 6.1 Push and pull – Every time something starts, stops or turns, a force is at work.
• 6.2 Changing shape – Forces can squash, stretch, bend and twist things.
• 6.3 How big is that force? – A bigger push makes a bigger difference.
• 6.4 Forcemeters – We measure forces in newtons.
• 6.5 Friction – Why do you slip on a wet floor?