EFHS -- power momentum and impulse

What does the wattage of a bulb tell you?

• the size of the bulb

• the heat released by the bulb

• the intensity of the light

• the rate at which energy is converted

The rate at which work is done.

• Energy

• Impulse

• Power

• Momentum

Which is bigger, 1 watt or 1 horsepower?

• 1 watt

• 1 horsepower

If 3 motors perform the same function, which motor would have the most power?

• the one doing the most work

• the one doing the work fastest

• the one using the least amount of energy

The product of mass and velocity.

• momentum

• power

• impulse

• horsepower

The force applied to a moving object for a certain amount of time.

• momentum

• impulse

• velocity

• power

A longer time interval requires a ______ force to achieve the same change in momentum.

• smaller

• larger

What is the momentum of a 3 kg toy car if it is moving at a velocity of 2 m/s?

• 1.4 kg m/s

• 2 kg m/s

• 3 kg m/s

• 6 kg m/s