10th Unit 2 Module 1 Assessment
Flashcard
•
Physics
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the formula for Potential Energy?
Back
Potential Energy (PE) = mgh, where m is mass (kg), g is acceleration due to gravity (9.81 m/s²), and h is height (m).
2.
FLASHCARD QUESTION
Front
What is the formula for Kinetic Energy?
Back
Kinetic Energy (KE) = \frac{1}{2}mv^2, where m is mass (kg) and v is velocity (m/s).
3.
FLASHCARD QUESTION
Front
Calculate the Potential Energy of a 100 kg object at a height of 300 m.
Back
PE = 100 kg * 9.81 m/s² * 300 m = 294300 J.
4.
FLASHCARD QUESTION
Front
Calculate the Potential Energy of a 900 kg car on a ramp 20 m high.
Back
PE = 900 kg * 9.81 m/s² * 20 m = 176580 J.
5.
FLASHCARD QUESTION
Front
Calculate the Kinetic Energy of an 80 kg biker traveling at 11 m/s.
Back
KE = \frac{1}{2} * 80 kg * (11 m/s)^2 = 4840 J.
6.
FLASHCARD QUESTION
Front
Calculate the Kinetic Energy of a 2 kg ball falling at 9 m/s.
Back
KE = \frac{1}{2} * 2 kg * (9 m/s)^2 = 81 J.
7.
FLASHCARD QUESTION
Front
What is the independent variable in an experiment testing car energy efficiency?
Back
The car's design modifications.
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