When you apply a strong force in the opposite direction to the motion of an already slow moving object what is the most likely change in motion?

The object will change directions and continue moving.

Speed up in the same direction of its current motion.

Stop moving for a second and then begin to move again in the opposite direction.

The object will not be affected by a strong force, only a weak force will make a difference.

A stronger force can cause a ______ change in velocity.

forces do not change the velocity of an object

When two objects collide, both objects experience the same amount of force. How each object responds after the collision depends on what?

How much velocity each object has.

How much friction affects each car.

How much matter was lost in the collision.

When two objects collide, both objects experience the same amount of force. How each object responds after the collision depends on what?

How much velocity each object has.

How much friction affects each car.

How much matter was lost in the collision.

Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than the yellow chair. Each chair was hit by another chair, but not from the same direction. Use the information in the diagram to answer. Which chair(s) experienced the strongest force when hit? How do you know?

The blue and red chairs experienced the strongest force because they are both more massive than the yellow chair and they changed speed by the same amount.

The red chair experienced the strongest force because it is as massive as the blue chair and has the highest ending speed.

All three chairs experienced the same force because they changed speed by the same amount.

The blue chair experienced the strongest force because it takes more force to slow an object than it takes to make it go faster.

Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than the yellow chair. Each chair was hit by another chair, but not from the same direction. Use the information in the diagram to answer. Which chair(s) experienced the strongest force when hit? How do you know?

The blue and red chairs experienced the strongest force because they are both more massive than the yellow chair and they changed speed by the same amount.

The red chair experienced the strongest force because it is as massive as the blue chair and has the highest ending speed.

All three chairs experienced the same force because they changed speed by the same amount.

The blue chair experienced the strongest force because it takes more force to slow an object than it takes to make it go faster.

Scott and James work at a grocery store. After the grocery store closed, they were playing a game with a shopping cart and Scott’s skateboard. They crashed the skateboard and the shopping cart two times. The shopping cart had more mass in Crash 2 than it did in Crash 1. Use the information in the diagram to answer. In which crash did the skateboard experience a stronger force? Why?

Crash 2; the force on the cart was stronger in this crash, so the force on the skateboard was also stronger.

The skateboard did not experience a force; only the shopping cart experienced a force in the crashes.

The diagram doesn’t tell you anything about the force on the skateboard. It only gives information about the force on the shopping cart.

The skateboard experienced the same force in both crashes. The shopping cart changed speed by the same amount in each crash, so the force on the skateboard was the same each time.

What does this diagram tell us about the force applied to each bumper car passenger?

The force exerted on each passenger was the same.

The force exerted on each passenger was in the same direction.

The force exerted on the boy with a mass of 70 was weaker because he stopped.

The force exerted on the boy with a mass of 32 was stronger because he started moving.

Based on our investigations in class, which claim is better supported by evidence?

Claim 2: The thrusters only slowed the pod, it didn't stop; the pod hit the space station, which made it bounce and move in the opposite direction.

Claim 1: The thrusters caused the pod to move in the opposite direction.

Neither claim is supported by evidence.

What is wrong with this collision model?

The force arrows should be the same size or equal strength.

The velocity of the objects should be in the same direction.

The force arrows should be in the same direction and equal size.

Nothing is wrong with this collision model.

Amplify- Force and Motion Chapter 1 & 2

Authored by HEATHER DUNCAN

Science

8th Grade

32 Questions

NGSS covered

Used 14+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is one of the five ways an object's motion can change:

hit something

bounce off something

Speed Up

fly off the table

Tags

NGSS.3-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In order for an object to speed up, the direction of the force is:

in any direction

in the same direction as the object's motion

in the opposite direction of the object's motion

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In order for an object to start moving, the force must come from

the same direction as the object's motion

the opposite direction as the object's motion

any direction

Tags

NGSS.3-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In order for an object to stop moving, the force must come from

the same direction as the object's motion

the opposite direction as the object's motion

any direction.

Tags

NGSS.3-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which force caused the jar lid to travel faster and reach the end of the meter stick first?

the weaker force

the stronger force

both forces had the same effect

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Complete the sentence to match your observations: When you exert a stronger force on an object, you will see ________ change in velocity as compared to exerting a weaker force on the same object.

a greater

a weaker

the same

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT TRUE about friction:

Friction is a force that acts in the opposite direction of motion.

Friction slows objects down.

There is no friction on earth.

Friction on carpet is greater than friction on a bare floor.

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Amplify- Force and Motion Chapter 1 & 2

Which of the following is one of the five ways an object's motion can change:

In order for an object to speed up, the direction of the force is:

In order for an object to start moving, the force must come from

In order for an object to stop moving, the force must come from

Which force caused the jar lid to travel faster and reach the end of the meter stick first?

Complete the sentence to match your observations: When you exert a stronger force on an object, you will see ________ change in velocity as compared to exerting a weaker force on the same object.

Which of the following is NOT TRUE about friction:

A push or pull that can cause motion.

Speed in a particular direction

Which of the following pictures models Claim 1: The thrusters caused the pod to move in the opposite direction.

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