Work , Power, Simple Machines Test Review
Flashcard
•
Physics
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
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9 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 the unit of Work?
Back
Joule (J)
4.
FLASHCARD QUESTION
Front
What is a wedge? Give an example.
Back
A wedge is a simple machine that is used to separate two objects. Example: butter knife.
5.
FLASHCARD QUESTION
Front
What is the relationship between Work, Power, and Time?
Back
Work is the product of Power and Time: W = P × t.
6.
FLASHCARD QUESTION
Front
If a force is applied but there is no movement, is work done?
Back
No, work is not done if there is no movement.
7.
FLASHCARD QUESTION
Front
What is the formula for Work?
Back
Work (W) = Force (F) × Distance (d) × cos(θ) where θ is the angle between the force and the direction of motion.
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