What is a vibration or disturbance that transfers energy?
a wave
What color of visible light has the lowest frequency?
red
All EM waves have the same ______________ in a vacuum.
speed
Sound waves with high amplitude have ___________ sounds.
louder
What does a longitudinal wave require in order to transfer energy?
medium
What does the frequency of a sound wave measure?
pitch
What is the smallest section of the EM Spectrum?
visible light
Higher pitch is caused by ______________ frequency.
higher
What are waves the do not require a medium (such as light waves?
transverse waves
What is the bouncing back of a light wave after it hits a surface?
reflection
What determines what color of visible light we see?
the frequency of the wave
What are waves where the particles move perpendicular to the direction of motion?
transverse waves
What type of waves are light waves?
transverse
What type of electromagnetic wave has the longest wavelength?
radio waves
EM waves travel at the ________________ speeds but sound waves travel at _________________ speeds.
same, different
What is the medium for seismic waves?
earth/dirt
What is the bending of a light wave as it passes from one medium into a different medium?
refraction
What travels faster? Light or sound waves?
light waves
Which EM waves are used to detect and treat cancer?
Gamma Rays
When a wave goes around something or through an opening.
diffraction