Work Energy Power Efficiency

Quiz
•
Physics
•
7th - 8th Grade
•
Medium
+7
Standards-aligned
Charles Martinez
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Bob (80 kg) uses 180 N of force to get him up the slope. The vertical distance is 2 m and the diagonal is 10 m. Calculate the work he does.
1600 J
160 J
3600 J
1800 J
Tags
NGSS.HS-PS2-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tags
NGSS.HS-PS3-3
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Energy Efficiency is calculated by useful energy (Energy Out) divided by energy consumed (Energy In) , expressed as a percentage
False
True
Tags
NGSS.HS-PS3-3
NGSS.HS-PS3-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The SI Unit for Energy is
Joule
Newton
Calorie
Watt
7.
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-PS3-3
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