Work and Energy
Flashcard
•
Physics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
The SI unit for energy is the ____.
Back
joule
2.
FLASHCARD QUESTION
Front
The amount by which a machine multiplies an effort force is called the ____.
Back
mechanical advantage
3.
FLASHCARD QUESTION
Front
CALCULATE KINETIC ENERGY: Mass is 560 g; Velocity is 4 m/s. What is the kinetic energy?
Back
4.48 J
4.
FLASHCARD QUESTION
Front
You can calculate gravitational potential energy by using the equation ____.
Back
GPE (J) = m (kg) × 9.8 m/s² × h (m)
5.
FLASHCARD QUESTION
Front
Energy stored in chemical bonds is called ____.
Back
chemical potential energy
6.
FLASHCARD QUESTION
Front
What is the formula for kinetic energy?
Back
KE = 1/2 mv²
7.
FLASHCARD QUESTION
Front
What is the formula for gravitational potential energy?
Back
GPE = mgh
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