Which of the following statements is true?

Unbalanced forces cause a change in motion.

Balanced forces cause a change in motion.

Forces do not effect the change in motion.

Which of the following objects has the least acceleration?

d. a full shopping cart pushed with a light force

a. an empty shopping cart pushed with a hard force

b. a full shopping cart pushed with a hard force

c. an empty shopping cart pushed with a light force

John wants to build a racetrack that will allow his toy cars to travel fast when force is applied. Which material should he use?

plastic, bc friction will be low

carpet, bc friction will be high

gravel, bc friction will be high

sandpaper, bc friction will be low

As a roller coaster car travels down a hill, which type of change in energy allows it to speed up?

potential energy changing to kinetic energy

potential energy changing to heat energy

kinetic energy changing into heat energy

kinetic energy changing into potential energy

How can an inclined plane make work easier?

by decreasing the effort required to raise an object

by increasing the amount of friction

by increasing the effort necessary to raise the object

Which best describes how forces must interact for a kite to sail up into the air?

The force of the wind must be greater than the force of gravity.

The force of gravity must be equal to the force of the wind.

The force of gravity must be greater than the force of the wind.

Which statement BEST explains why a car that is rolling on a level surface will eventually come to a stop?

Frictional forces oppose the motion of the car.

Forward motion slowly runs out as energy is expended.

The natural state of an object is to be at rest.

Inertia acting on an object will dissipate.

Two forces act in opposite directions on a wood block. What will happen if the forces are unbalanced?

The position of the block will change.

The block will balance the forces.

The forces will reverse direction.

The mass of the block will change.

Which is an example of balanced forces?

a truck beginning to accelerate

In a tug-of-war game, balanced forces are BEST represented when both teams cause the flag to...

be pulled quickly in one direction.

Simple machines (lever, inclined plane, wedge, screw, pulley, wheel and axle) do which of the following?

Reduce the force needed to move an object over a distance

Reduce the mass of an object that needs to be moved

Reduce the distance an object needs to be moved

Reduce the amount of time needed to move an object over a distance

Force and Motion Air Test Questions

Authored by Charles Martinez

Science

8th Grade

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a PUSH or PULL of an object?

Motion

Force

Friction

Gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Why is it harder for the boy in Image B to get down the hill?

Motion

Friction

Work

Displacement

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which force produces a change in motion?

unbalanced force

balanced force

gravitational force

frictional force

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

If these boys are pulling with the same amount of force. What will happen?

The boy in blue will win.

They will not move at all.

The boy in red will win.

Both will fall down.

Tags

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

_______________ is how fast an object changes over time.

speed

velocity

momentum

acceleration

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What happens when two forces act in the same direction?

They cancel each other out.

The stronger one prevails.

Their strengths are added.

Their sum divided by the two is the total force.

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Any time the forces are unbalanced, an object will remain at rest. True or false?

true

false

Tags

NGSS.MS-PS2-2

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Force and Motion Air Test Questions

What is a PUSH or PULL of an object?

Why is it harder for the boy in Image B to get down the hill?

Which force produces a change in motion?

If these boys are pulling with the same amount of force. What will happen?

_______________ is how fast an object changes over time.

What happens when two forces act in the same direction?

Any time the forces are unbalanced, an object will remain at rest. True or false?

When you tell the direction and speed of an object, you give its

What is the net force on the block? (click on the words to view the picture)

Which of the following statements is true?

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