A red car is sitting still and gets hit by a blue car of equal mass going at a speed of 30 m/s. After the collision, which car has the greater change in velocity?

It could be either depending on the type of collision.

A blue car of greater mass collides head on with a red car of less mass. The two cars were initially traveling at the same speed before impact and stuck together after the collision. Which scenario explains what would happen afterwards.

The red and blue car would continue at the same speed in the direction of the blue car initially but at a slower speed.

The red and blue car would continue at the same speed in the direction of the red car initially but at a slower speed.

The red and blue car would continue at the same speed in the direction of the blue car initially but at a faster speed.

The red and blue car would continue at the same speed in the direction of the red car initially but at a faster speed.

In order for an object to experience a change in motion, what must happen?

An unbalanced external force must be applied to it.

An internal force must be applied.

An object must move at a constant velocity.

Objects that are moving with balanced forces upon them will travel ...

travel the path of least resistance.

travel towards the greater force presence.

stop moving until a force is applied.

If the time interval that a force interacts with an object decreases to stop the objects motion, the _____ the force will need to be.

the force will be the same regardless.

'p' before equals 'p' after.

Law of Conservation of Momentum

Which type of collision (assuming same mass and speeds) has the lowest change in momentum.

A collision where the cars stick

A collision where a car bounces

What is Newton's First Law

An object at rest stays at rest, an object in motion stays in motion.

Every action has an equal and opposite reaction

Will it take more force to push an empty shopping cart or a shopping cart that is full?

They will take the same amount of force

When a heavy football player and a light one run into each other, who exerts more force?

there is no such thing as force

The purpose of crumble zones on a car is to

decrease the impulse during impact.

Newton's 2nd Law can be rearranged to say...

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

Momentum is conserved in this type of collision

momentum is conserved in both types of collisions

Forces and Momentum

Authored by Richard Campbell

Physics

8th - 12th Grade

NGSS covered

Used 40+ times

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48 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

The ability to resist a change in motion is known as...

Impulse

Inertia

Mass

Force

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The units for force are...?

Newton

kg x m/sec

Impulse

kg / m / s / s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An object in motion will remain in motion.

1st Law

2nd Law

3rd Law

Conservation of Momentum

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If I push you, then you also will push me.

1st Law

2nd Law

3rd Law

Conservation of Momentum

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The momentum before and after a collision is the same.

1st Law

2nd Law

3rd Law

Conservation of Momentum

Tags

NGSS.HS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Two objects of equal mass are given a push. Object 1 accelerates faster than object 2. What can be said about the forces causing the motion.

The force on object 1 was greater than the force on object 2.

The forces were equal on both objects

The force on object 2 was greater than the force on object 1.

The forces were equal, but the momentum was larger for object 1.

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Coins are stacked on top of an index card which is placed over a cup. The index card is flicked and the coins...

fall straight down due to 1st Law

fly off due to 2nd Law.

fly toward the flick due to 3rd Law

The coins absorbe the momentum of the flick and fly off at an increased speed.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

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Forces and Momentum

The ability to resist a change in motion is known as...

The units for force are...?

An object in motion will remain in motion.

If I push you, then you also will push me.

The momentum before and after a collision is the same.

Two objects of equal mass are given a push. Object 1 accelerates faster than object 2. What can be said about the forces causing the motion.

Coins are stacked on top of an index card which is placed over a cup. The index card is flicked and the coins...

kg x m / sec. These are the units for...

Which of the following is NOT a Vector.

A red car is sitting still and gets hit by a blue car of equal mass going at a speed of 30 m/s. After the collision, which car has the greater change in velocity?

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