Inertia

Inertia

Assessment

Flashcard

Science

6th - 8th Grade

Hard

Created by

Barbara White

FREE Resource

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9 questions

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1.

FLASHCARD QUESTION

Front

Inertia Noun

[in-ur-shuh]

Back

Inertia


The tendency of an object to resist any change in its state of motion, whether at rest or moving.

Example: A ball at rest stays at rest until kicked. A ball in motion stays in motion until stopped by a net. This is inertia.
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2.

FLASHCARD QUESTION

Front

Mass Noun

[mas]

Back

Mass


The measure of an object's inertia, which indicates the amount of matter the object contains.

Example: This image shows inertia, the resistance to a change in motion. When the car stops suddenly, the box's mass causes it to continue moving forward.
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3.

FLASHCARD QUESTION

Front

Force Noun

[fors]

Back

Force


A push or pull upon an object that can cause it to change its velocity, meaning to accelerate.

Example: A person applies a force (a push) to an object to overcome its inertia and change its state of motion from rest.
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4.

FLASHCARD QUESTION

Front

External Force Noun

[ek-stur-nl fors]

Back

External Force


A force that originates from outside an object and acts upon it to change its state of motion.

Example: An external force, like the Magnus force on a spinning soccer ball, causes the ball to change its straight path of motion (inertia).
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5.

FLASHCARD QUESTION

Front

Unbalanced Force Noun

[un-bal-uhnst fors]

Back

Unbalanced Force


A net force that is not zero, causing a change in an object's motion, such as its speed or direction.

Example: When the hand releases the ball, gravity becomes an unbalanced force, causing the ball to change its motion and accelerate downwards.
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6.

FLASHCARD QUESTION

Front

Velocity Noun

[vuh-los-i-tee]

Back

Velocity


A measure of the rate and direction of an object's change in position over a period of time.

Example: Velocity is an object's speed in a specific direction. The straight path shows a constant velocity, while the winding path shows a changing velocity because the direction is always changing.
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7.

FLASHCARD QUESTION

Front

Constant Velocity Noun

[kon-stuhnt vuh-los-i-tee]

Back

Constant Velocity


A state in which an object moves at a steady speed and in a single, unchanging direction.

Example: This velocity-time graph shows a horizontal line, indicating that the object's velocity (v) does not change as time (t) passes, remaining constant at 5 m/s.
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8.

FLASHCARD QUESTION

Front

Acceleration Noun

[ak-sel-uh-rey-shuhn]

Back

Acceleration


The rate at which an object's velocity changes over time, which can be a change in speed or direction.

Example: This diagram shows Newton's Second Law, F=ma, where acceleration ('a') is the result of applying a net force ('F') to an object's mass ('m').
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9.

FLASHCARD QUESTION

Front

Friction Noun

[frik-shuhn]

Back

Friction


A force that opposes the motion of objects, acting between surfaces that are in contact with each other.

Example: A car rolls from a smooth to a rough surface, where the force of friction acts in the opposite direction of its motion, slowing it down.
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