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Energy Transfers and Efficiency

Authored by Gareth Hart

Physics

12th Grade

Used 2+ times

Energy Transfers and Efficiency
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8 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of these can happen to energy?

Destroyed

Created

Converted

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of energy is also called movement?

Kinetic

Chemical

Gravitational Potential

Elastic

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which type of appliance would convert electrical energy into sound energy?

a speaker

a microphone

an amplifier

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What type of diagram is used to show energy efficiency?

Bar chart

Sankey

Flow diagram

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which arrow is bigger in a Sankey diagram for a filament lamp?

Heat

Light

They are the same

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the main useful energy transfer that happens in petrol cars?

Kinetic to heat

Kinetic to chemical

Chemical to kinetic

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What main energy transfer happens in many musical instruments?

Sound to kinetic

Electrical to kinetic

Kinetic to sound

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