Energy Efficiency, Sankey Diagram and Power

Energy Efficiency, Sankey Diagram and Power

9th - 10th Grade

25 Qs

quiz-placeholder

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Energy Efficiency, Sankey Diagram and Power

Energy Efficiency, Sankey Diagram and Power

Assessment

Quiz

Physics

9th - 10th Grade

Medium

NGSS
MS-PS3-5, MS-PS3-3, HS-PS3-3

+4

Standards-aligned

Created by

Jatto Johnson

Used 5+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A kettle uses 100J of electrical energy to produce 7J of sound energy and 93J of thermal energy. How efficient is the kettle?

100%

7%

93%

95%

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?

5%

50%

55%

100%

Tags

NGSS.MS-PS3-5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A hairdryer uses 300J of energy to produce 60J of sound energy and 240J of thermal energy. Calculate it's efficiency.

80%

90%

20%

100%

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

An iPhone charger coverts 75J of electricty in to 50J of charge and 25J of thermal energy. How efficient is the charger?

10%

100%

33%

67%

Tags

NGSS.HS-PS3-3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image
What type of device might this Sankey be about?
A very efficient LED light bulb
A very inefficient incandescent light bulb
A coal power plant
A wind turbine

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image
If this household wanted to use less energy, where should they first focus their efforts.
Water heater
Better lighting
Unplugging electronics
More efficient air conditioning

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Efficiency is calculated by useful energy output divided by total energy input, expressed as a percentage

False

True

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