Across
- When drawing light rays, you need a protractor and a ___
- The distance an object is front of a plane mirror equals the distance the image appears _____ the mirror.
- Normal lines are always ____
- Nothing is faster than the speed of ______
- THE RELATIONSHIP BETWEEN FREQUENCY AND WAVELENGTH
- Velocity of light can be found by multiplying its ____ times its wavelength
- Another word for empty space
- When measuring angles of reflection, the curve of the protractor always points towards the
- The angle between an angle of incidence and an angle of reflection equals 40 degrees, so the angle of reflection is _____ degrees.
- With reflection, the angle of incidence always equals the angle of
- This kind of reflection produces no image
- At the end of a every light ray
- If the angle of incidence equals 25 degrees the angle of refraction equals ______ degrees (2 words, no space)
- Dotted line drawn perpendicular to the reflective surface
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Down
- The _____ line of your protractor should always be placed on the normal.
- Where can you find the speed of light if you need it? ____ table.
- Light slows down very little when it enters _____
- The incoming ray and reflected ray always forms the ____ V
- Light is very slow in this medium
- The unit of measurement for an angle
- Ignore the angles on your protractor that are greater than ____ degrees.
- A plane or flat mirror produces this kind of reflection
- The image produced by a plane mirror is not real, but ___
- When the frequency of light goes up, its wavelength goes ___.
- Einstein called the speed of light the ____ speed limit
- If the angle between the ray and the surface equals 20 degrees, then the angle of incidence equals.
- The first ray in reflection is called the _____ ray
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