What happens to the speed of an object as an unbalanced force acts on it?

Speed changes in the direction of the unbalanced force.

Speed remains constant regardless of the unbalanced force.

Speed decreases in the opposite direction of the unbalanced force.

Speed increases in the opposite direction of the unbalanced force.

What happens to the position of an object as an unbalanced force acts on it?

The position of the object changes as it accelerates in the direction of the unbalanced force.

The object moves in the opposite direction of the force

What happens to the direction of an object as an unbalanced force acts on it?

It changes in the direction of the unbalanced force.

It moves opposite to the unbalanced force

Newton’s 2nd says the acceleration of an object depends on its ______________________ and__________________________.

mass and the net force acting on it

What will be the effect on the boy in the picture if the driver stops quickly?

The boy will move forward due to inertia.

The boy will move backward due to inertia.

The boy will remain stationary.

Which of Newton’s Laws explains a rocket’s movement during launch?

Newton's Law of Universal Gravitation

If a soccer ball is kicked first by a second grader and then again by an eighth grader, what will be the difference in the ball’s acceleration?

Speed will change and direction will change

Speed will stay the same, but the direction will change

Direction will stay the same, but the speed will change

There will be no difference in the acceleration

The conductor of a train moving at a constant speed sees a cow on the tracks. Why is it likely that the train will not be able to stop quickly enough to save the cow?

The train's large mass and momentum make it hard to stop quickly.

The train's brakes are not functioning properly.

The cow is too fast for the train to stop in time.

The train's conductor is not paying attention.

What two things could a person do to increase the strength of an electromagnet?

Increase the number of coils and increase the current flowing through the wire.

Decrease the number of coils and decrease the current flowing through the wire.

Decrease the number of coils and increase the voltage flowing through the wire.

Increase the number of coils and decrease the current flowing through the wire.

What is the difference between Weight and Mass?

Mass stays the same; Weight depends upon gravity

Weight stays the same; Mass depends upon gravity

Mass and Weight both stay the same

Mass and Weight both change due to gravity

Forces Test Review

Authored by Donetha Meyers

Science

8th Grade

Used 5+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The moon orbiting the Earth at a constant speed.

Balanced

Unbalanced

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A lamp sitting on a table

Balanced

Unbalanced

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A car accelerating around a mountain curve.

Balanced

Unbalanced

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two ice skaters moving in a straight line at a constant speed.

Balanced

Unbalanced

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A skier skiing through flags in a race down the mountain.

Balanced

Unbalanced

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A book sitting on a shelf.

Balanced

Unbalanced

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A gymnast on a balance beam doing a backflip

Balanced

Unbalanced

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Forces Test Review

The moon orbiting the Earth at a constant speed.

A lamp sitting on a table

A car accelerating around a mountain curve.

Two ice skaters moving in a straight line at a constant speed.

A skier skiing through flags in a race down the mountain.

A book sitting on a shelf.

A gymnast on a balance beam doing a backflip

Cars in a NASCAR race speeding around the track.

A soccer ball sitting on the ground motionless.

A rocket lifting off the launch pad

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