Practical Physics Impulse and Momentum

A moderate force will break an egg. However, an egg dropped on the road usually breaks, while one dropped on the grass usually does not break. This is because for the egg dropped on the grass

• the change in momentum is greater.

• the change in momentum is less.

• the time interval for stopping is greater.

• the time interval for stopping is less.

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Two identical cars are travelling along the freeway, one car is traveling faster. Which of the two cars would have a greater momentum?

• the slower car

• the faster car

• both have the same momentum

• cannot be easily determined

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It is the product of the mass of an object and its velocity.

• Momentum

• Velocity

• acceleration

• Impulse

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NGSS.HS-PS2-2

To which of the following does the momentum of an object depend?

• velocity and acceleration

• Velocity and acceleration

• Force and speed

• Mass and velocity

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NGSS.MS-PS3-1

A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?

• 25 m/s

• 25 kg m/s

• 375 m/s

• 375 kg m/s

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NGSS.MS-PS3-1

When the speed of an object is doubled, its momentum _____

• remains unchanged in accord with the conservation of momentum.

• quadruples

• doubles

• decreases

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NGSS.HS-PS2-2

A tennis player hits an approaching ball with a force of 750 N. If the player hits the ball in 0.002 s, how much impulse was imparted to the tennis ball? FΔt = mΔv

• 5.1 N.s

• 2.5 N.s

• 1.5 N.s

• 52 N.s

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NGSS.HS-PS2-1

NGSS.HS-PS2-2

The difference between a car hitting a wall vs. a car hitting a hay stack is

• the Impulse on the car hitting the wall is greater

• the change in momentum of the car hitting the wall is greater

• the force on the car hitting the hay stack is greater

• the collision time of the car hitting the hay stack is greater

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NGSS.HS-PS2-1

How can a tennis ball and a bowling ball have the same momentum?

• have the same speed

• have different speeds

• one is moving backwards

• they can't

The equation seen here

• Momentum = Mass x Velocity

• Power = Momentum x Velocity

• Propulsion = Movement x Velocity

• Impulse = Mass x Force