Wave Basics, Behaviors and Interactions

What is a wave?

• A repeated back and forth or up and down motion

• The ablility to do work

• A disturbance that transfers energy from place to place.

• A force that two objects exert on each other.

How are waves started?

• By a soid, liquid, or gas.

• By some kind of force

• By a medium

• By magic

How are mechanical waves transmited?

• Through a medium.

• Through space.

• Through a vacuum

• It's magic

What do all of the following have in common?

(radio, microwave, gamma, x-ray)

• They are all mechanical waves

• They are all longitudinal/compressional waves

• They have nothing in common

• They are all electromagnetic waves.

What happens to light when it hits a smooth and shiny surface?

• It is reflected.

• It is refracted

• It is absorbed

• It is transmitted

If you put a straw into a glass of water, the straw looks to be bent, although nothing has physically happened to the straw. Ther term that describes this property of light is called?

• reflection

• refraction

• absorption

• transmission

During refraction, waves bend when they pass from one medium to another. The waves refract because their _______ changes.

• size

• crest

• speed

• trough

Many new headphones on the market are called "noise reducing" because they take sound waves that come in from the outside and add a sound wave to it that is exactly opposite to it, these add together to make no noise. This is a good example of sound wave ____________ ___________.

• constructive interference

• absorption

• destructive interference

• reflection

What happens if an opaque object is placed in the path of light?

• It will transmit the light.

• It will reflect the light

• It will refract the light

• It will absorb the light.

Which pair of waves are interacting in such a manner that exhibits the greatest destructive force?

• A

• B

• C

• D