Force and Motion

Force and Motion

Assessment

Flashcard

Physics

8th 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 an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its state of motion, either by starting to move, stopping, or changing direction.

2.

FLASHCARD QUESTION

Front

State Newton's First Law of Motion.

Back

An object at rest will remain at rest, and an object in motion will continue in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

3.

FLASHCARD QUESTION

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. The more mass an object has, the greater its inertia.

4.

FLASHCARD QUESTION

Front

Explain Newton's Second Law of Motion.

Back

Newton's Second Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

5.

FLASHCARD QUESTION

Front

What is the reaction force when a person jumps off a diving board?

Back

The reaction force is the diving board pushing the person upward as they push down on it.

6.

FLASHCARD QUESTION

Front

Define balanced forces.

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion of the object.

7.

FLASHCARD QUESTION

Front

What happens to an object when the net force acting on it is zero?

Back

When the net force is zero, the object remains at rest or continues to move at a constant velocity.

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