6.1 Quiz - Momentum and Impulse

What is defined as the product of an object's mass and its velocity?

• kinetic energy

• force

• momentum

• impulse

• inertia

What is the correct formula for momentum?

• p=mv

• P=mv

• m=pv

• m=v/p

• v=mp

What is the unit for momentum?

• N

• J

• kg•m/s

• kg•m/s²

• kg•m²/s

How does the momentum of an object change if the object's velocity doubles?

• The momentum doubles.

• The momentum quadruples.

• The momentum decreases by one half.

• The momentum decreases by one fourth.

• The momentum remains the same.

Which of the following has the greatest momentum?

• 4.0 kg bowling ball moving at 2.0 m/s.

• 0.15 kg baseball moving at 10.0 m/s.

• 1.6x10³ kg car moving at 0.5 m/s.

• 0.02 kg bullet moving at 950 m/s.

• 200 kg gorilla moving at 8 m/s.

A cart with a mass of 25.0 kg is rolling with a speed of 14 m/s. What is the magnitude of the momentum of the cart?

• 1.8 kg•m/s

• 11 kg•m/s

• 39 kg•m/s

• 350 kg•m/s

• 0.56 kg•m/s

The first human-made satellite, Sputnik I, had a mass of 83.6 kg and a momentum with a magnitude of 663,000 kg•m/s. What was the satellite’s speed?

• 5.54x10⁷ m/s

• 1.26x10^-4 m/s

• 7.93x10⁴ m/s

• 7,930 m/s

• 5,540 m/s

In 1987, Marisa Canofoglia, of Italy, roller-skated at a record-setting speed of 40.3x10³ m/h. If the magnitude of Canofoglia’s momentum was 6.60x10² kg•m/s, what was her mass?

• 59.0 kg

• 0.0164 kg

• 53.8 kg

• 64.0 kg

• 16.4 kg

What is defined as the product of the force and the time interval over which the force acts on an object?

• momentum

• work

• impulse

• time

• potential energy

If a net force acts on an object, then the object's momentum...

• will increase.

• will decrease.

• will either increase or decrease.

• will not change.

• will always increase by two.