Momentum

Compared to a sports car moving at 30 miles per hour, the same sports car moving at 60 miles per hour has 

• twice as much momentum
• four times as much momentum
• the same momentum.
• Half the momentum

Tags

NGSS.HS-PS2-2

The momentum change of an object is equal to the 

• velocity change of the object
• force acting on it
• force acting on it times its velocity
• impulse acting on it

Tags

NGSS.HS-PS2-2

The reason padded dashboards are used in cars is that they 

• decrease the impulse in a collision.
• increase the time of impact in a collision.
• increase the force of impact in a collision.
• decrease the momentum of a collision

Tags

NGSS.HS-PS2-3

A table tennis ball launcher is fired. Compared to the impulse on the ball, the impulse on the launcher is 

• smaller
• larger
• the same

Tags

NGSS.HS-PS2-1

A collision is considered elastic if 

• there is no lasting deformation
• the objects don’t stick together.
• the objects that collide don't get warmer.
• All answers are correct

Tags

NGSS.HS-PS2-2

Which of the following has the largest momentum?

• A large truck parked in a parking lot
• A tightrope walker crossing Niagara Falls
• A pickup truck traveling down the highway
• A dog running down the street

Tags

NGSS.HS-PS2-2

A cannon recoils from launching a cannonball. The speed of the cannon's recoil is small because the 

• impulse on the cannon is less than the impulse on the cannonball.
• cannon has far more mass than the cannonball
• momentum of the cannon is unchanged.
• force against the cannon is relatively smal

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-1

Two objects, A and B, have the same size and shape, but A is twice as heavy as B. When they are dropped simultaneously from a tower, they reach the ground at the same time, but A has a higher 

• acceleration
• momentum.
• speed.
• all answers are correct

Tags

NGSS.HS-PS2-1

The momentum of an object is defined as the object's 

• force times the time interval.
• force times its acceleration
• mass times its velocity.
• mass times it acceleration.

Tags

NGSS.HS-PS2-2

Suppose an astronaut in outer space wishes to toss a ball against a very massive and perfectly elastic concrete wall and catch it as it bounces back. If the ball is as massive as the astronaut, then 

• the astronaut's time between catches will decrease as the game progresses
• the astronaut will never catch the first bounce.
• the astronaut will catch one bounce only
• no answer is correct

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-1