Energy Efficiency
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Medium
+8
Standards-aligned

Dylan Luttrell
Used 906+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The law of conservation of energy states that when one form of energy is converted into another,
Tags
NGSS.MS-PS3-4
NGSS.MS-PS3-5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In energy transformations, "wasted energy" usually takes what form?
Tags
NGSS.MS-PS1-4
3.
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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When is energy lost?
During transformations only
During transformations and transfers
During transfers only
During GPS outages
Tags
NGSS.MS-PS3-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy efficiency of incandescent lightbulbs is
50%
25%
15%
5%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
With wind-electric turbines, electric energy is turned into rotational energy.
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Energy efficiency of wind turbines is about
90%
75%
40%
12%
Tags
NGSS.MS-PS3-3
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