Light
What does light travel in until it hits something?
Straight lines, called rays
What does sound need to travel through?
A medium, like air, water, or solids
What does frequency tell us about a wave?
How many waves pass a point each second
What is the height of a wave called?
Amplitude
What happens when a wave bounces off a surface?
Reflection
What happens when light bounces off a mirror?
Reflection
What do we call how loud or soft a sound is?
Volume
What is the unit we use to measure frequency?
Hertz
When a sound wave has a bigger amplitude, how does it sound?
Louder
What happens when a wave bends as it goes into a new material?
Refraction
What happens when light bends as it moves from air into water?
Refraction
In which material does sound move the fastest air, water, or solids?
Solids
When sound waves have a high frequency, what kind of pitch do they have?
A high pitch
When a light wave has a bigger amplitude, how does it look?
Brighter
What is it called when waves spread out after going through a small opening?
Diffraction
What tool splits white light into a rainbow of colors?
A prism
What do we call a sound that bounces back to your ears?
An echo
What happens to the wavelength when the frequency of a wave increases?
The wavelength gets shorter
The larger the amplitude, the more of what the wave has?
Energy
What type of light is just below red on the electromagnetic spectrum?
Infrared light
What part of light can our eyes see?
Visible light
What do we call sound waves that are too high for people to hear?
Ultrasound
When the frequency of light increases, what happens to its energy?
The energy increases
What happens to the energy of a wave when its amplitude increases?
The energy increases
What type of light is just beyond violet on the electromagnetic spectrum?
Ultraviolet light