Energy Efficiency Calculations

Quiz
•
Physics
•
6th - 8th Grade
•
Medium
Standards-aligned
Charles Martinez
Used 2+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
100%
80%
40%
10%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
100%
80%
40%
20%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
100%
10%
40%
20%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What percent energy is wasted by a machine if the energy input is 262 J and the energy output is 131 J?
5%
50%
100 J
Tags
NGSS.HS-PS3-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tags
NGSS.HS-PS3-3
7.
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
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the efficiency of a light bulb if the energy input is 125J but the useful energy output is 25J
20%
100%
50%
75%
Tags
NGSS.HS-PS3-3
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