1. Momentum and Impulse

1. Momentum and Impulse

Multiple Choice

The ________ the mass, the ____________ the inertia

• greater; greater

• greater; smaller

• smaller; greater

• impossible to tell

Multiple Choice

If the semi-truck has a mass of 2,000 kilograms, and is driving at a speed of 35 m/s, what is its momentum?

• 70,000 kg·m/s

• 57 kg·m/s

• 0.0175 kg·m/s

Multiple Choice

If the little Miata has a mass of 1,000 kilograms, and is also driving 35 m/s, what is its momentum?

• 35,000 kg·m/s

• 29 kg·m/s

• 0.035 kg·m/s

Multiple Choice

An 8 kg bowling ball is rolling in a straight line toward the pins, about to hit a strike. If its momentum is 16 kg·m/s, how fast is it rolling?

• 128 m/s

• 2 m/s

• 0.5 m/s

Multiple Choice

Which has greater inertia?

• A falling feather

• A parked fire truck

Multiple Choice

Which has greater momentum?

• A falling feather

• A parked fire truck

Multiple Choice

What do you do to stop a moving object?

• Apply a force

• Wait for it to stop on its own

Multiple Choice

The brakes on a car apply a force of 1200 N in order to stop a 2400 kg car in 5.0 seconds. Determine the magnitude of impulse applied by the brakes.

• 12,000 N∙s

• 6,000 N∙s

• 2,880,000 N∙s

• 240 N∙s

Multiple Choice

The brakes on a car apply a force of 1200 N in order to slow a 2400 kg car from 56 m/s to 40 m/s. Determine the magnitude of impulse applied by the brakes.

• - 38,400 N∙s

• 38,400 N∙s

• 67,200 N∙s

• 48,000 N∙s

• -19,200 N∙s