Doppler Effect: A train horn moving away from you will have a __________ pitch than when it is moving towards you.

Momentum: What is the magnitude of the momentum of a bowling ball, if the mass of the ball is 5 kg and its velocity is 5 m/s?

Conservation of Momentum: A 0.145 kg baseball is thrown at 30 m/s. A catcher with a mass of 100 kg catches the ball. The total momentum after the ball was caught was zero. What was the catcher's speed before the ball was caught?

Sound Waves: How is a sound wave made by ringing a bell?

Sound Waves: A sound wave can be transmitted through a vacuum.

Wave Behavior: The medium is what determines a wave's _______.

Thermodynamics: A boiling pot of water is set out into the middle of an empty, colder room. How do both the room and the pot of boiling hot water end up becoming the same temperature over time?

What is the speed of sound through air if the frequency of the sound is 400 Hz and its wavelength is 0.855 m?

Impulse-Momentum: During a football game, a 0.40 kg football initially thrown at 20 m/s is caught and brought to rest in 0.35 s. Determine the magnitude of force required to change the football's momentum.

In a vacuum, all frequencies of light (radio waves, microwaves, IR, UV, x-rays, gamma...) have the same speed.

A flashlight shining through a window is an example of reflection.

A car collides with another car at rest. If no outside forces act on the system, the total momentum of the two cars before and after the collision -

All of the following are ways in which heat transfers except:

Sound travels faster through a gas than a solid.