What wavelengths of color make up the visible spectrum in order from largest to lowest wavelength?
Red, orange, yellow, green, blue, indigo, violet
100
What tool may we use to separate white light into the rainbow spectrum of colours?
Prism.
100
What is sound?
Sound is the waves of the vibrations.
100
What reflects light the best?
Flat surfaces (mirrors)
100
What are three primary regions of human ear?
Outer, middle, and inner ear.
200
What colors are formed when all colors of light and all colors of paint are added together?
All colors of light forms white and all colors of paint form black.
200
How is the light separated?
As the light slows down in speed, in which result to change its direction.
200
What is frequency?
It is a measure of how many wavelengths pass by in a given time.
200
What are the different types of mirrors?
Plane, concave, and convex.
200
What device do people use when their hearing has been damaged?
Hearing aides.
300
What is the purpose of light filters?
Light filters absorbs some wavelengths of light and let others pass
300
Why does something black have a slightly higher temperature than something white?
Black objects absorbs all colours of light which turns into heat
300
How is sound created?
It is created when objects vibrate and move molecules.
300
What is the difference between the incident and reflected angles?
Incident angle is the angle that come hits the mirror and reflected angle is the angle that is reflected.
300
What part of the human ear turns vibrations into electrical signals?
Cochlea.
400
What are the three primary colors and what makes up when two of the each are mixed together?
Red, green, blue. Red and green makes up yellow, green and blue makes up cyan, blue and red makes up magenta.
400
What are three categories of objects fall into?
Opaque, transparent, and translucent.
400
Why does sound travel faster in dense objects?
Because the molecules are close together so vibrations pass through more easily.
400
What are the shapes of each different types of mirrors?
Plane mirror is flat, concave mirror bend towards the light, and convex mirror bend away from the light.
400
What are loudness of sound measured in?
Decibels (dB).
500
What is different about combining the colors of light and the colors of paint?
Light reflects the colors while paint absorbs the colors.
500
What is light?
Light is the range of electromagnetic radiation.
500
Explain what amplitude, crest, trough, and wavelength are.
Amplitude is the heigh of wave, crest is the highest point of the wave, trough is the lowest point of the wave, and wavelength is the distance between crests or trough.
500
What is law of reflection?
It is the law explaining that the incident angle and the reflected angle are always the same.
500
State two things that ears are important for, besides hearing
They can help you to detect an object's location and maintain the balance.