Wave Basics
A wave will travel only as long as it has ____ to carry.
energy
Why does a gym produce echoes?
Sound waves are reflected by hard surfaces
What electromagnetic waves might you find in your kitchen?
Light waves can travel through empty space. (T or F)
True
The distance between one crest to the next or one trough to the next.
wavelength
The energy a wave carries is measured by its ____.
Sound travels in a ____ wave.
longitudinal
Which electromagnetic wave is used in tv remotes?
infrared
Why does an apple appear red?
Only the color red is reflected, the other colors are absorbed.
____ are used for medical imaging.
x rays
Any disturbance that transfers energy through matter or space.
Wave
Why does sound need air to travel?
It is a mechanical wave
Which wave has the highest energy in the EM spectrum?
Gamma
A student shines a flashlight at a window and a brick wall. Which material will transmit the most light?
Window
What are mediums? (three types)
solid liquid gas
The matter through which a wave travels.
Medium
Predict what would happen if walls were made entirely of mirrors in a classroom.
Sounds will echo and the room will be loud.
Which electromagnetic wave can cause sunburn?
When you look in the mirror, light is _____
reflected
Why are recording studios lined with foam instead of mirrors?
Foam absorbs sound waves.
Waves in which the particles vibrate in an up & down motion.
Transverse
Why can't sound travel in space?
What electromagnetic wave has the longest wavelength?
Why are dark asphalt roads hotter in the sun?
Light is absorbed and transferred into thermal energy
How could wave knowledge help protect coastal cities?
To prepare for tsunamis