
AP Physics C: Unit 3 Practice MC (Shortened)
Flashcard
•
Physics
•
12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is instantaneous power in physics?
Back
Instantaneous power is the rate at which work is done or energy is transferred at a specific moment in time, calculated as the product of force and velocity.
2.
FLASHCARD QUESTION
Front
How do you calculate the change in kinetic energy using a force-displacement graph?
Back
The change in kinetic energy is equal to the area under the force vs. displacement graph between two points.
3.
FLASHCARD QUESTION
Front
What is the formula for calculating power when moving an object at constant speed against friction?
Back
Power (P) can be calculated using the formula P = F_friction * v, where F_friction is the force of friction and v is the velocity.
4.
FLASHCARD QUESTION
Front
What is the average power expended when lifting an object at constant speed?
Back
Average power can be calculated using the formula P = rac{W}{t}, where W is the work done against gravity and t is the time taken.
5.
FLASHCARD QUESTION
Front
What is the relationship between work done and kinetic energy?
Back
The work-energy theorem states that the work done on an object is equal to the change in its kinetic energy.
6.
FLASHCARD QUESTION
Front
Define kinetic energy and its formula.
Back
Kinetic energy (KE) is the energy an object possesses due to its motion, calculated using the formula KE = rac{1}{2}mv^2, where m is mass and v is velocity.
7.
FLASHCARD QUESTION
Front
What is the coefficient of kinetic friction?
Back
The coefficient of kinetic friction (μ_k) is a dimensionless scalar value that represents the frictional force between two moving surfaces divided by the normal force.
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