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P1-07 Energy

P1-07 Energy

Assessment

Flashcard

Physics

11th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

2.

FLASHCARD QUESTION

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated as PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

3.

FLASHCARD QUESTION

Front

What is the principle of conservation of mechanical energy?

Back

The principle states that in a closed system with no non-conservative forces (like friction), the total mechanical energy (kinetic + potential) remains constant.

4.

FLASHCARD QUESTION

Front

How does the height of an object affect its gravitational potential energy?

Back

Gravitational potential energy increases with height; doubling the height will double the potential energy, assuming mass remains constant.

5.

FLASHCARD QUESTION

Front

What happens to kinetic energy as a pendulum swings?

Back

As a pendulum swings, kinetic energy is highest at the lowest point of the swing and lowest at the highest points, where potential energy is highest.

6.

FLASHCARD QUESTION

Front

What is the relationship between mass and gravitational potential energy?

Back

Gravitational potential energy is directly proportional to mass; if mass increases, potential energy increases, assuming height remains constant.

7.

FLASHCARD QUESTION

Front

What does ΔU < 0 indicate in a system?

Back

ΔU < 0 indicates that the gravitational potential energy of the system is decreasing, often as objects fall or move downward.

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