
Work and Power
Authored by George Hathorn
Physics
9th Grade
NGSS covered
Used 23+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equation for Work?
W=1/2 (mv2)
W=Fd
W=1/2 (kx2)
W=mgh
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equation for Kinetic Energy
Ek=1/2 (mv2)
Ek=Fd
Ek=1/2 (kx2)
Ek=mgh
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A joule is a unit of
power
heat
energy
current
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 10 kg box is pulled a distance of 3m by a force of 30 N.
The work done is
9 J
30 J
90 J
900 J
Tags
NGSS.MS-PS2-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A girl weighs 400 N. She runs up a flight of stairs of height 5 m in 4 seconds. Her power is:
320 W
400 W
500 W
2 000 W
Tags
NGSS.HS-PS3-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements are true about work?
Work is a form of energy.
A Watt is the standard metric unit of work.
Work is a time-based quantity; it is dependent upon how fast a force displaces an object.
None of these.
Tags
NGSS.HS-PS3-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements are true about power?
If person A and person B do the same job but person B does it faster, then person A does more work but person B has more power.
Powerful people or powerful machines are simply people or machines which always do a lot of work.
Power refers to how fast work is done upon an object.
None of these
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