What is work in physics?
Ps 7 Review

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Science
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9th - 12th Grade
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Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Work is defined as the product of force and the distance over which that force is applied. It is measured in joules (J).
2.
FLASHCARD QUESTION
Front
How does lifting an object relate to work done?
Back
Lifting an object against gravity requires work, which increases with the height the object is lifted.
3.
FLASHCARD QUESTION
Front
What is potential energy?
Back
Potential energy is the energy stored in an object due to its position or height. It is calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.
4.
FLASHCARD QUESTION
Front
What is kinetic energy?
Back
Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.
5.
FLASHCARD QUESTION
Front
What happens to potential energy as an object falls?
Back
As an object falls, its potential energy decreases while its kinetic energy increases, but the total mechanical energy remains constant.
6.
FLASHCARD QUESTION
Front
What is conduction?
Back
Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.
7.
FLASHCARD QUESTION
Front
What is convection?
Back
Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.
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