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Physics Revision

Physics Revision

Assessment

Presentation

Physics

9th Grade

Medium

Created by

L Osborne

Used 3+ times

FREE Resource

32 Slides • 8 Questions

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Physics Revision

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Multiple Choice

What does dissipating energy mean?

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transfer of energy to useful energy store

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transfer of energy to the thermal store of the surroundings (wasted)

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Multiple Select

Which store of energy is increases when energy is dissipated?

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Thermal store

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Kinetic Store

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Gravitational store

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Chemical store

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Poll

How does a ball falling dissipate some of its energy before reaching the ground?

It loses it electrically

Mechanically through friction. By pushing air molecules out of the way

Some of it is transferred as light

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Open Ended

What does efficiency measure?

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Multiple Select

Why is efficiency never 100%

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Some energy is dissipated as heat

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more energy is made than used

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Fill in the Blank

A sankey diagram shows how efficient an appliance is

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Open Ended

Houses lose a lot of energy when they are heated. Where in a house do you think the most heat energy is lost?

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Multiple Select

Which of these methods can be used to reduce unwanted heat loss in a house?

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Double glazing

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Loft insulation

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Draught excluder

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Foil backed radiator

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Physics Revision

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