Unit 5 | Waves Flashcards
Sound Waves, Water Waves, waves on springs/ropes and seismic waves produced by earthquakes are all examples of…
Mechanical waves
Light waves, radio waves, and micro waves are examples of…
Electromagnetic waves
What type of waves can’t travel through a vacuum?
Mechanical waves
What type of waves don’t need a medium to travel through (can travel through a vacuum)?
Electromagnetic waves
Waves that move perpendicular to point where they move from are called…
Transverse waves
The vibrations move parallel to the direction which the energy is passed along are called…
Longitudinal waves
The height of the wave and the depth of the crest wave are both part of the…
Amplitude
The bigger the amplitude of waves the ……. energy is released.
more
The distance from one wave crest to the next is called the…
wavelength
The number of wave crests to pass a fixed point every second.
Frequency
The unit for Frequency
Hz
the angle of incidence is equal to
the angle of reflection
list the difference between real and virtual images
- a virtual image can’t be projected onto a screen
- a real image uses light rays on a screen that are focused.
when the medium of the material a light ray is passing through it changes direction slightly, what do we call this?
refraction
the spreading of waves when they pass through a gap or obstacle
diffraction
