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What colour has the longest wavelength, or the lowest frequency?
Red
A shirt appears blue on a bright sunny day because?
The shirt reflects blue light
What do you get if you combine all the colours in the visible light spectrum?
White light
What type of electromagnetic radiation has the shortest wavelength?
Gamma rays
What type of electromagnetic radiation has the longest wavelength?
Radio waves
The height of the wave from the rest position is called
Amplitude
What is the acronym that can help you remember the order of the visible spectrum?
ROY G BIV
What is the frequency of a wave that passes a point 18 times in 2 seconds.
9 Hertz
What is one positive use for x-rays?
Identifying bone fractures or breaks
What is a risk of overexposure to x-rays?
Could develop cancer
What will happen when white light passes through yellow glass.
Red and green light pass through and the others are absorbed.
Identify B.
The type of reflection that produces a clear image of the surroundings
Specular reflection
The type of reflection that produces a blurry image of the surroundings
Diffuse reflection
A material that prevents visible light from passing through it, an object cannot be seen through such a medium
opaque
A material that allows light to pass through but scatters it in the process, an object appears fuzzy through it.
Translucent
