Energy, Work, and Power
Authored by Emily Russ
Science
8th - 9th Grade
NGSS covered
Used 247+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following is a true statement about work?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A weightlifter lifts two 300 newton weights 1.5 meters off the ground. How much work has he done?
Tags
NGSS.MS-PS2-4
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Simple machines make work easier by increasing what?
Tags
NGSS.HS-PS2-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You do 90 joules of work in 30 seconds. How much power have you generated?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You move a 0.8 kg object five meters in 4 seconds. How much power have you generated?
160 watts
10 watts
6.4 watts
17 watts
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following would produce the most power?
Tags
NGSS.MS-PS2-4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An object has 12.4 J of potential energy and 23.5 J of kinetic energy. What is the mechanical energy of the system?
11.1 J
1.895 J
35.9 J
291.4 J
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