Light
Sound
Ears
Light
Electricity
100
What is the speed of light?
300,000 km/s
100
How is sound created?
Sound is created when objects vibrate and move molecules
100
What are the three primary regions of the human ear?
The three primary regions of a human ear arethe outer, middle, inner ear
100
What color has the shortest wavelength?
The color with the shortest wave length is violet
100
Where does electricity flow through?
Electricity flows through substance
200
What are the colors that make up white light in order?
Red, orange, yellow, green, blue, indigo, violet
200
In which medium does sound travel faster in?
Sound travels faster in a denser medium
200
What can you use when hearing has been damaged?
You can use a hearing aid
200
When light slows down and changes direction what is the name of this process?
This process is called refraction
200
What are four ways to generate electricity besides burning fossil fuels?
Wind, geothermal, biomass, hydro-electric
300
What tool do we use to separate white light into the rainbow spectrum colours?
The tool you use to separate white light into the rainbow spectrum is a prism
300
Why does sound travel faster in denser mediums?
Sound travels faster in denser mediums because the molecules are close together so vibration passes through more easily
300
When the ear drums are torn what happens?
The ear drum becomes less sensitive to air pressure waves
300
WHat are ray diagrams used to show?
ray diagrams are used to show the path that light takes in a situation
300
What is an electrical current?
An electrical current is the flow of electrons from one atom to another in a certain direction through a medium
400
What are the seven kinds of light that make up the electromagnetic spectrum in order?
The seven kinds of light that makes up the electromagnetic spectrum are radio, microwave, infrared, visible, ultraviolet, x-ray, gamma
400
What is the speed of sound in air?
The speed of sound in air is 330 meters/s
400
What are some things the ear is important for?
Some things the ear is important for is detecting an object's location, maintaining balance, subconsciously detecting and observing our surroundings
400
When light passes through water what happens?
When light passes through water the light weakens and the water separates the colors
400
What measurement is used to measure an electrical current?
The current is measured in amperes (A)
500
Which color has the largest wavelength?
Te color with the largest wavelength is red
500
What is the trough?
The trough is the lowest point of a wave
500
What are the range of frequencies that humans are able to detect?
Humans are able to hear 20-20,000
500
What is a wave length?
A wave length is the distance between one wave to the other
500
What is an insulator?
An insulator are materials that prevent the flow of electricity through them
M
e
n
u