What will cause an object at rest to begin to move?

An object at rest can never move.

Which two forces are equal?

The Force of Gravity and the Normal Force

The applied force and the Force of friction

The Force of Gravity and the Motion Force

By looking at the picture, what is the best conclusion?

The Friction force is opposite to the direction of the motion force

Friction is in the same direction as Motion

Which could be an example of an unbalanced force?

A baseball that has been thrown to home plate.

A plate sitting on a dining table

A ball at the top of a hill that is not moving

Which example would be a balanced force?

Train moving at a constant speed in the same direction.

A basketball being passed to a teammate.

How does friction help us move from place to place?

Friction keeps us from slipping and sliding.

Friction makes us slip and fall.

If the gravitational force acting on a block of wood resting on the ground is 2.7 N, what force will it take to lift the block of wood off of the ground?

Any amount of force greater than 2.7 N.

Why does something as small as a bullet have so much momentum when fired from a weapon?

The weapon gives the bullet a high velocity.

The weapon makes the bullet very massive.

A bullet can never have much momentum.

Why will a tennis ball hit the ground before a kleenex?

The kleenex experiences more air friction.

It won't. They will hit at the same time.

The amount of friction that exists between 2 objects depends on... (Select all that apply)

The smoothness of the surfaces.

The force pressing the surfaces together.

The distance between the objects.

What will happen if you release two nearby magnets with opposite poles facing each other?

The magnets will attract one another.

The magnets will oppose one another.

Forces

Authored by Shawna Taylor

Science

7th Grade

NGSS covered

Used 87+ times

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40 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What force ultimately slows the roller coaster to a stop?

Applied

Normal

Friction

Magnetic

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An _______ force must act on an object for it to CHANGE it's motion

balanced

unbalanced

gravitational

electrical

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is defined as a push or pull that one object exerts on another object?

force

motion

vector

speed

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

This type of force opposes motion between two surfaces that are in contact

contact

gravity

friction

momentum

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If the net force is equal to zero, the forces acting on the object are

balanced

unbalanced

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Balanced forces do not change the objects speed or

direction

distance

time

mass

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The unit of force is

m/s

m/s²

newton

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Forces

What force ultimately slows the roller coaster to a stop?

An _______ force must act on an object for it to CHANGE it's motion

What is defined as a push or pull that one object exerts on another object?

This type of force opposes motion between two surfaces that are in contact

If the net force is equal to zero, the forces acting on the object are

Balanced forces do not change the objects speed or

The unit of force is

What is the net force?

What is the net force in this picture?

The amount of gravity between 2 objects depends on... (Select all that apply.)

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