4.1 Physics - Energy Transfer (PENDULUM) - Flashcards in GCSE Physics

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Created by: KieraHollings_
Created on: 01-01-18 16:50

What is the law of conservation of energy?

Energy can be transferred usefully, stored or dissipated but it can not be created or destroyed

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What is a system?

A system is an object or a group of objects

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In a closed system, no energy can ___ or ___

Enter, Leave

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Friction causes energy to be transferred into ___ energy

Thermal

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What is the friction doing to the pendulum as it swings?

The fixed point and the air around the pendulum gradually get warmer. This thermal energy store is less useful. The energy has been dissipated (wasted). This causes the pendulum to swing with less energy and eventually stop

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How can we reduce unwanted energy transfers?

We can reduce friction

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How can we reduce friction?

Use a lubricant or get rid of the surrounding air particles

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Other cards in this set

Card 2

Front

What is a system?

Back

A system is an object or a group of objects

Card 3

Front

In a closed system, no energy can ___ or ___

Back

Card 4

Front

Friction causes energy to be transferred into ___ energy

Back

Card 5

Front

What is the friction doing to the pendulum as it swings?

Back

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4.1 Physics - Energy Transfer (PENDULUM)