Work and Kinetic Energy Practice

Work and Kinetic Energy Practice

Assessment

Flashcard

Physics

10th - 12th 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 friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other, always acting in the direction opposite to the velocity of the moving object.

2.

FLASHCARD QUESTION

Front

Why does kinetic friction always do negative work on a sliding object?

Back

Kinetic friction always points in the direction opposite to an object's velocity, slowing it down and transferring energy from the object to the environment.

3.

FLASHCARD QUESTION

Front

What is the work done by gravity on an object moving downward?

Back

Gravity always does positive work on an object that moves downward.

4.

FLASHCARD QUESTION

Front

What can be concluded if an object is slowing down?

Back

The sum of work done by each force acting on the object is negative.

5.

FLASHCARD QUESTION

Front

What does a graph of kinetic energy look like for an object thrown straight upward?

Back

The graph is a parabola with a minimum, showing kinetic energy decreasing as the object rises and increasing as it falls.

6.

FLASHCARD QUESTION

Front

What can be concluded about two forces acting on an object moving with constant speed?

Back

W1 = -W2, meaning the work done by one force is equal in magnitude and opposite in sign to the work done by the other force.

7.

FLASHCARD QUESTION

Front

What is the formula for work done by a force?

Back

Work (W) = Force (F) × Displacement (d) × cos(θ), where θ is the angle between the force and the direction of displacement.

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