Constructing an Argument Supported by Evidence of the Principle of Conservation of Momentum

Why does the pod have a greater change in velocity after the collision?

• the pod have more mass than the space station

• the pod has less mass than the space station

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

On a pool table, the 0.1 kg white cue ball runs into the 0.1 kg red 3 ball. The white ball stops and the red ball starts moving. Select all of the true statements.

• The red and white balls had equal and opposite forces during the collision

• The white ball accelerated when they collided

• The red ball accelerated when they collided

• The red ball had a greater acceleration

Tags

NGSS.MS-PS2-1

Calculate the green balloon car's momentum before the collision.

Mathematical Equivalence

ON

Tags

NGSS.HS-PS2-2

In the diagram above, the arrows represent momentum. A larger arrow indicates more momentum. Which of the following best describes how the balls will move after ball A collides with ball b?

• Ball A will bounce off of ball B and roll to the left, and ball B will continue to roll to the right.

• Both balls will roll to the left.

• Ball A will stop moving, and ball B will continue to roll to the right.

• Both balls will roll to the right.

Tags

NGSS.MS-PS2-1

A 15.0-gram air hockey puck sliding on a horizontal surface at a velocity of 7.00 meters per second north collides with a 15.0-gram air hockey puck traveling at a velocity of 8.00 meters per second south. The momentum of the system of pucks after the collision is

• 0.0150 kgm/s north

• 0.0150 kgm/s south

• 0.225 kgm/s north

• 0.225 kgm/s south

Tags

NGSS.HS-PS2-2

Object 1 has a mass of 20 kg and an initial velocity of 5 m/s, and object 2 has a mass of 30 kg and an initial velocity of 6 m/s. What is their total momentum?

• 280 kg m/s

• 30 kg m/s

• 180 kg m/s

• 100 kg m/s

Tags

NGSS.HS-PS2-2

A moving object's __________ is its mass times its velocity. It is in the direction of motion.

• momentum

• impulse

• inelastic collision

• elastic collision

Tags

NGSS.HS-PS2-2

A car reaches 80 kilometers per hour then suddenly crashes into the concrete wall. Without a seat belt, the crash test dummy slams into the car's dashboard because-

• the crash test dummy's kinetic energy drops to zero.

• the dash is pushed backwards into the cash test dummy.

• the momentum of the car is being transferred to the crash test dummy.

• the car has stopped, but the crash test dummy is still moving forward.

Tags

NGSS.HS-PS2-2

Which one is more difficult to stop: A tractor-trailer truck barreling down the highway at 35 meters per second, or a small two-seater sports car traveling the same speed? Why?

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Why would a golf ball have more momentum than a wiffle ball moving at the same speed even though they are about the same volume/size?

• wiffle ball has greater mass than a golf ball.

• golf ball is less dense than a wiffle ball.

• golf ball has more mass than a wiffle ball.