Science 4A - Sound Waves

A vibrating form of energy that is made of particles moving through a medium

• Sound wave

• Microwave

• Light wave

A medium is.......

(Think about a psychic medium! What are they?)

• The ability to cause an object to change its motion

• A substance through which another object or energy travels

• A rapid back and forth motion

A frequency is

• The process of increasing the size of sound waves

• Not favoring one side over another.

• The amount of wave cycles completed through unit time.

True or False:

All sounds transmit energy

• True

• False

True or False:

Sound is made from vibrations

• True

• False

True or False:

Sound waves move outward from the source of the vibrations

• True

• False

Energy is the ability to make an object change the way it moves.

How can we say that a sound wave is a type of energy?

• -------->

• A sound wave makes the air vibrate as the wave travels. The wave makes the air change the way it moves.

How can you tell a bowling ball has hit the pins even if you can't see it happening?

• When the ball hits the pins, the air particles around them vibrate. The vibration travels through the air particles back to me, and I hear the collision.

• The air produces sound that goes into your ears. The air vibrates and goes back to the ball and then down to the pins.

How can we tell sound waves transfer energy?

• Feeling of vibration

• Feeling of heat

Can sound waves travel through a medium other than air?

• No

• Yes,

  water