AQA GCSE (9-1) Physics Student Book by Witney Steve & England Nick

Author:Witney, Steve & England, Nick [Witney, Steve]
Language: eng
Format: epub
Publisher: Hodder Education
Published: 2016-07-31T16:00:00+00:00

Moments in action

In Figure 5.29 , a small crane is being used to load a boat. A counterbalance weight on the left-hand side is used to stabilise the crane and stop it from toppling over.

Example

Where should the counterbalance weight be placed when the crew use the crane to lift a 2000 N crate into the boat?

Answer

Gears

Many machines make use of gears . Gears can be used to increase or decrease the rotational effects of a force. Figure 5.30 shows how a machine can produce a large turning effect.

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