Light
List on example of an artificial light
Lamp, computer screen
Explain a prism
refracts light into the colours of the rainbow
Something that helps a person hear better.
What is a hearing aid?
Sound is a type of
energy
The material that allows light to pass through but scatters it.
What is translucent?
The only kind of energy waves you can see.
What are light waves?
The first step in hearing is when sound waves make this part of your ear vibrate.
What is the eardrum?
The loudness or softness of a sound
What is volume?
You speak into this to amplify sound.
What is a microphone?
Name one way light is used for safety
street lights in the dark to see
The color of sunlight.
What is white?
This carries sound waves to the brain.
What is the nerve?
What sound device keeps us safe?
siren from emergency vehicle
They travel through different materials at different speeds.
What are sound waves?
This occurs when white light is broken up into colors.
What is a rainbow?
This helps catch sound waves and direct them into the ear canal.
What is the ear?
This is higher from sounds made from thin strings on a guitar and lower from the sounds made by thick strings on a guitar.
What is pitch?
The distance from one point on a wave to the same point on the next wave.
What is a wavelength?
This the color you see when all of the colors are absorbed.
What is black?
What do the three small bones in the ear do.
vibrate the liquid and small hairs
This device contains a tiny amplifier that makes sounds louder and is often used by doctors.
What is a stethoscope?
What is pitch and loudness?
pitch is measured in hertz and loudness is volume and is measured in decibels