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Intro to Force and Motion Concepts

Authored by James Kane

Science

6th - 8th Grade

NGSS covered

Used 1+ times

Intro to Force and Motion Concepts
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31 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is force?

A push or pull that can cause motion
The mass of an object
An object's resistance to motion
The speed of an object

Answer explanation

A force is defined as a push or pull that can change an object’s motion.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is true for balanced forces?

They cause a change in motion
They are equal in size and opposite in direction
They increase friction
They only occur on stationary objects

Answer explanation

Balanced forces cancel each other out, resulting in no motion.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a free body diagram show?

The forces acting on an object
The motion path of an object
The speed of an object
The mass of an object

Answer explanation

Free body diagrams represent all the forces acting on an object.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If two forces act in opposite directions, how do you find the net force?

Add them
Subtract them
Multiply them
Divide them

Answer explanation

Subtract smaller force from larger to find the net force.

Tags

NGSS.MS-PS2-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is friction?

A force that opposes motion
A force that causes objects to accelerate
A force that changes direction of motion
A force that increases speed

Answer explanation

Friction opposes the relative motion between two surfaces in contact.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What factor does NOT affect friction?

The roughness of the surfaces touching
The color of the objects
How hard objects are pressed together
Adding lubricants to the surfaces

Answer explanation

Friction depends on surface type and force, not surface area.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which scenario best demonstrates Newton's 1st Law of Motion (Inertia)?

A car continuing to roll after the engine stops
A balloon flying away when air escapes
A ball accelerating when hit
A rocket lifting off the ground

Answer explanation

Newton’s 1st Law describes an object in motion staying in motion unless acted on by an external force.

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