Work and Power
Flashcard
•
Science
•
8th - 9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for calculating power?
Back
Power (P) = Work (W) / Time (t)
2.
FLASHCARD QUESTION
Front
What is the unit of power?
Back
Watt (W)
3.
FLASHCARD QUESTION
Front
What is work in physics?
Back
Work is done when a force causes an object to move. It is calculated as Work (W) = Force (F) x Distance (d).
4.
FLASHCARD QUESTION
Front
If you move an object with a force of 10 newtons over a distance of 5 meters, how much work is done?
Back
50 joules (Work = Force x Distance = 10 N x 5 m)
5.
FLASHCARD QUESTION
Front
True or False: The farther you move an object, the more work you do.
Back
True
6.
FLASHCARD QUESTION
Front
What do simple machines do to make work easier?
Back
They increase the distance over which work is done.
7.
FLASHCARD QUESTION
Front
If you do 90 joules of work in 30 seconds, how much power have you generated?
Back
3 watts (Power = Work / Time = 90 J / 30 s)
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