Properties of Light
This is the path light takes unless it is reflected or refracted.
Straight Line
The visible colors we see are part of this small section of the full electromagnetic spectrum.
Visible Light Spectrum
These waves are used to heat food in a microwave oven.
Microwaves
When sound waves bounce off a surface, what travels back to the ear?
Echo
Between light and sound, which travels faster?
Light waves
The name for the bending of light when it passes into a new substance and changes speed.
Refraction
The acronym used to remember the order of visible colors.
ROY G BIV
These waves are used by airport security scanners.
X-rays/scanners
Sound waves that move by compressions and rarefactions are called these two names.
Longitudinal or compression waves
Waves carry this from place to place; both light and sound are forms of it.
Energy
What happens when light bounces off a shiny surface?
Reflection (reflected)
How many colors are in the visible light spectrum
Seven
These waves can be used to kill cancer cells.
Gamma rays
Sound needs a medium to travel. It cannot travel through this.
A vacuum
Sound travels faster through which kind of medium: air, water, or solids?
Solids
This device can separate white light into all the colors of the rainbow by refraction.
A Prism
The visible color with the shortest wavelength.
Violet
Which electromagnetic waves transfer the most energy: radio waves, microwaves, visible light, or x-rays?
X-rays
The loudness or softness of a sound is called this; it is measured in these units.
Volume is measured in decibels (dB).
High-pitched sounds have a ____ frequency and low-pitched sounds have a ____ frequency.
High; Low
Light waves that move up and down are called this type of wave.
Transverse Waves
When white light passes through a prism, it is separated into colors because of this change in the light.
The speed of the light changes.
Which electromagnetic waves have the longest wavelength: radio waves, microwaves, visible light, or x-rays?
Radio waves
The part of the ear that vibrates first when sound waves hit it, allowing us to hear.
Eardrum
Sound waves are a type of mechanical wave called ____ waves.
Longitudinal or compression waves