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# Quiz 3.

### Physics quiz on mirrors,reflection, and waves

What is a wave? A wave is a traveling disturbance of coordinated vibrations that transmit energy with no movement of matter.
What are Mechanical waves? Mechanical waves are waves that require a material through which to travel.
What are Electromagnetic waves? Electromagnetic waves propagate along electric and magnetic field lines and to not need a material through which to travel.
What does periodic motion mean? It will repeat itself.
What is a continuous wave? Continuous waves are caused by a repetitive disturbance.
What is a pulse? A single "bump" of a wave
What is the amplitude of a wave? The maximum displacement from the equilibrium.
What is the crest? The crest is the highest point of the wave.
What is the trough? The trough is the lowest point of the wave.
What is that wavelength? The wavelength is the distance between two repetitive points on the wave.
What is frequency? The number of waves that pass a point in space in one second.
What is the equation for frequency? f= 1/t
What is a transverse wave? A transverse wave is a type of mechanical wave. It occurs when the motion of the particles of the medium move perpendicular to the motion of the wave.
What is a longitudinal wave? A longitudinal wave is when the particles of the medium move parallel to the motion of the wave.
What is the electromagnetic spectrum? The range of electromagnetic radiation.
Where do light rays combine? In the additive color wheel.
Where do paints combine? In the subtractive color wheel.
What is reflection? When light bounces off of the boundary of a new material.
What is specular reflection? When light bounces off of a smooth surface.
What is diffuse reflection? When light bounces off of a rough or textured surface.
What is the focal point? The focal point is the point where incoming parallel light rays converge or the point from which they diverge.
What is the focal length? The distance from the mirror to the focal point.
What is refraction? When light is transmitted into a new material.
Created by: lexy828x3