Power and Work

Quiz
•
Science
•
8th Grade
•
Hard
+3
Standards-aligned
Lisa Thompson
Used 1+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Power is the RATE at which work is done.
True
False
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
What is needed to calculate work?
force
distance
time
mass
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Force multiplied by distance equals...
work
power
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You use 950 J of energy to push a sofa. If it took you 5 sec to move the sofa, what was your power?
190 J
4750 J
4750 W
190 W
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A runner exerts 240,000 J when she runs for 10 min. What is the runner's power?
400 W
600 W
400 J
600 J
Tags
NGSS.MS-PS3-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The power rating of an electric lawnmower is 3000 W. If the lawnmower is used for 60 sec, how many joules of work can it do?
270,000 W
270,000 J
180,000 J
33.3 W
Tags
NGSS.HS-PS3-1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 400 N object is in a 32,000 N elevator that rises 30 m in 2 min. How much power is needed for the elevator's trip?
8100 J
972,000 J
972,000 W
8100 W
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
NGSS.MS-PS3-4
NGSS.MS-PS3-5
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