Work, Power, & Simple Machines Test

Flashcard
•
Physics
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is effort (input) force?
Back
The force required by a machine in order to accomplish work (the force you put on the machine).
2.
FLASHCARD QUESTION
Front
What is resistance (output) force?
Back
The force which an effort force must overcome in order to do work on an object via a simple machine.
3.
FLASHCARD QUESTION
Front
What is a lever?
Back
A simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum.
4.
FLASHCARD QUESTION
Front
What is power in physics?
Back
The rate at which work is done or energy is transferred, measured in watts (W).
5.
FLASHCARD QUESTION
Front
How do you calculate power?
Back
Power = Work done / Time taken.
6.
FLASHCARD QUESTION
Front
What is work in physics?
Back
Work is done when a force causes an object to move in the direction of the force, calculated as Work = Force x Distance.
7.
FLASHCARD QUESTION
Front
What is a simple machine?
Back
A device that makes work easier by allowing us to push or pull over increased distances.
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