
Physics Concepts: Work, Energy, and Electricity

Flashcard
•
Physics
•
9th Grade
•
Hard
Akshita Mittal
FREE Resource
Student preview

21 questions
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1.
FLASHCARD QUESTION
Front
What is the golden rule of mechanics?
Back
What you gain in force, you lose in distance.
2.
FLASHCARD QUESTION
Front
What are simple machines mentioned in the text?
Back
Levers, inclined planes, wedges, screws, wheels, and pulleys.
3.
FLASHCARD QUESTION
Front
What is a lever?
Back
A stick that can turn around a point called the pivot or fulcrum.
4.
FLASHCARD QUESTION
Front
How does a lever work?
Back
If the load is close to the pivot, it's easier to lift; if your hands are far from the pivot, you don't need to push as hard.
5.
FLASHCARD QUESTION
Front
What is a pulley?
Back
A simple machine that helps lift heavy things by changing the direction of your pull.
6.
FLASHCARD QUESTION
Front
How does adding more wheels (blocks) to a pulley help?
Back
It reduces the force needed to lift something heavy.
7.
FLASHCARD QUESTION
Front
What is an inclined plane?
Back
A ramp that helps make heavy lifting easier by allowing you to slide or roll an object.
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