When an unbalanced force acts on an object, the force ______________________.

changes the motion of the object

does not change the motion of an object

is equal to the weight of the object

What kind(s) of objects have inertia?

only objects whose motion is being changed

After a cannonball is fired into frictionless space, the amount of force needed to keep it going equals

zero, since no force is required to keep it moving.

twice the force with which it was fired

the same amount of force with which it was fired

1/2 the force with which it was fired

The acceleration produced by a net force on an object is

inversely proportional to the mass of the object.

directly proportional to the magnitude of the net force.

in the same direction as the net force.

Which has more momentum: a semi truck stopped at a red light or a bike moving at 15 mph?

cannot determine using the info provided

When Ronda Rousey got kicked in the face (action), what was the reaction?

Ronda Rousey getting media criticism

Forces Review

Quiz

•

Science

•

8th - 9th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS2-2, MS-PS2-1, MS-PS2-4

+4

Standards-aligned

Trillion Richter

Used 55+ times

FREE Resource

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

Balanced

Unbalanced

Tags

NGSS.MS-PS2-2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?

The cart will speed up.

The cart will slow down.

The cart will move at a constant speed in a straight line.

The cart will fly to never never land!

Tags

NGSS.MS-PS2-2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Are forces balanced or unbalanced when skateboarding down a ramp?

Balanced

Unbalanced

Tags

NGSS.MS-PS2-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 5 m/s?

The boat increase speed and continue moving left.

The boat will sink.

The boat will move backwards.

The boat will continue sailing to the left at a constant speed of 4 m/s.

Tags

NGSS.MS-PS2-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The tendency of an object to resist changes in its motion is...

inertia

force

acceleration

momentum

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Any push or pull on an object.

force

velocity

inertia

momentum

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The force that opposes motion between two surfaces in contact with each other.

inertia

friction

momentum

gravity

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Forces Review

30 questions

Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?

Are forces balanced or unbalanced when skateboarding down a ramp?

The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 5 m/s?

The tendency of an object to resist changes in its motion is...

Any push or pull on an object.

The force that opposes motion between two surfaces in contact with each other.

The force of attraction between all matter.

A Newton is a unit of...

When all the forces on an object are equal and opposite, & the net force is zero, that's...

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