Basics
What is movement of energy from one place to another?
Wave
Is sound a mechanical or electromagnetic wave?
Mechanical
Is light a mechanical or electromagnetic wave?
Electromagnetic
Does light travel faster through air or plastic?
Air
Why don’t cats see color as well as humans?
They have fewer cones.
What is the material a wave travels through called?
Medium
What system used by submarines works the same way as echolocation?
Sonar
What is the distance between crest to crest, or trough to trough called?
Wavelength
What is it called when a wave bounces off a surface?
Reflection
If an object absorbs all colors of light, what color does it appear?
Black
What do we call the back-and-forth movement that creates a wave?
Vibration
What type of wave moves particles back and forth in the same direction the wave travels? (like the slinky on the table station)
Longitudinal
Between red and purple light, which one has the longer wavelength?
Red
When a wave bends as it moves from one medium to another.
Refraction
Name 3 types of electromagnetic wave besides visible light
Radio, microwave, infrared, ultraviolet, X-ray, gamma ray
Which type of wave moves matter up and down while the wave moves forward?
Transverse
How many times faster does sound travel in water compared to air?
About 4 times faster
What is the ray called when it leaves the prism?
Emergent ray
What happens to wave speed when a wave changes mediums?
Its speed changes, causing bending.
The word “normal” in science comes from Latin. What does it mean?
At a right angle
Explain the difference between a mechanical wave and an electromagnetic wave
Mechanical waves need a medium; electromagnetic waves do not and can travel through space.
Why effect describes why a siren sounds different as it passes you?
Doppler Effect
How are the incident ray and emergent ray related?
They are parallel
What are the 3 types of mechanical waves?
Transverse, longitudinal, or surface
The ancient Greeks believed that vision worked like a _________ not like a ___________.
Flashlight, Camera