Which one of these objects has the greater amount of momentum?

A turtle that slowly crosses a road

During a collision. an object experiences an impulse. How can this impulse be calculated?

Multiplying mass by acceleration

The purpose of crumble zones on a car is to

increase the time of impact to decrease the force

decrease time of impact to increase the force

increase force of impact to increase the force

decrease the time of impact to decrease the force

What is Newton's Third Law?

For every action there is an equal and opposite reaction

Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force

When the speed of an object is doubled, its momentum

remains unchanged in accord with the conservation of momentum.

A baseball bat hits a baseball with a force of 100 Newtons. What is the force and its direction exerted by the ball on the bat?

100 Newtons, opposite direction

200 Newtons, opposite direction

The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?

As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.

The rocket is protected from the heat of the exhaust.

Burned fuel can be collected on the ground.

This allows the rocket to be steered properly.

A semi truck and a Volkswagen (small car) traveling at the same speed have a head on collision. Which statement is correct?

The impact force is equal for both.

The impact force is greater on the Volkswagen.

The impact force is greater on the semi truck.

The impact force is less on the semi truck.

When the person pushes the ground with their foot, the equal and opposite reaction force is

the ground pushing back on their foot

when they start to move forward

If a person pushes down on a trampoline, why do they move back up into the air?

The trampoline pushes back with an equal and opposite force as the person

The trampoline pushes back with a greater force than the person

The trampoline pushes back with less force than the person

Newton's Third Law and Momentum

Authored by Charles Martinez

Science

9th Grade - University

NGSS covered

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38 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.

-2.5

-10

-18

-45

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

0.1 kg-m/s

1 kg-m/s

10 kg-m/s

100 kg-m/s

Tags

NGSS.HS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Softer landings tend to

increase impact force

increase force

increase collision time

increase change in momentum

Tags

NGSS.HS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cart A is pulled with a 2 Newton force for 2 seconds, and Cart B is pulled with a 1 Newton force for 3 seconds. Which cart experiences the greatest impulse?

Cart B

Cart A

they are the same

Tags

NGSS.HS-PS2-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In order to throw a ball as far away from you as possible, you need to

decrease the time of impact on the ball while increasing the force on the ball

decrease the time of impact on the while while decreasing the force on the ball

increase the time of impact on the while while increasing the force on the ball

increase the time of impact on the while while decreasing the force on the ball

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The impulse-momentum theorem states that

the impulse on an object is equal to the change in momentum it causes

the force on a moving object is equal to the magnitude of the impulse.

the impulse on an object is greater than the change in momentum it causes

the impulse on an object is less than the change in momentum it causes

Tags

NGSS.HS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A constant force of 4.5 N acts on a 7.2-kg object for 10.0 s. What is the change in the object's velocity?

6.3 m/s

3.2 m/s

1.2 m/s

4.33 m/s

Tags

NGSS.HS-PS2-1

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Newton's Third Law and Momentum

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

Softer landings tend to

Cart A is pulled with a 2 Newton force for 2 seconds, and Cart B is pulled with a 1 Newton force for 3 seconds. Which cart experiences the greatest impulse?

In order to throw a ball as far away from you as possible, you need to

The impulse-momentum theorem states that

A constant force of 4.5 N acts on a 7.2-kg object for 10.0 s. What is the change in the object's velocity?

A 40-kilogram mass is moving across a horizontal surface at 5.0 m/s. What is the magnitude of the net force required to bring the mass to a stop in 8.0 seconds?

Which one of these objects has the greater amount of momentum?

Which one of the following units represents the standard metric units of momentum

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