Light
Light pt 2
Electricity
Sound
Sound(ears)
100
whats the speed of light
300,000 km/s
100
what are prisms able to do with light? what is this process called?
Prisms separate light by slowing it down which changes the light's direction. This process is called refraction
100
What is energy?
Energy is the aability to do something
100
Whats sound made of
Sound is made of waves of vibrations passing through a medium
100
Where do sound waves first travel to make a vibration in ears?
to the ear drum
200
how many colors are there in the visible spectrum?
7
200
what do ray diagrams show?
Show the path of light in a particular situation.
200
What is electricity?
Electricity is the flow from one atom to another
200
How is sound created?
Sound is created when something vibrates and moves it molecules
200
How much things does ear consist of?
7
300
what are the colors of the visible spectrum?
Red, orange, yellow, green, blue, indigo and violet.
300
Why do black things have higher temp. than white things?
Because black absorbs light which heats it up
300
What are the types of energy?
Mechanical, heat, sound, chemical,electrical and light.
300
Why is there no sound in space?
Because space has no molecules to let sound travel through
300
What are the sound waves collected by?
Cobe
400
What are the 3 mirrors that we studied in class? (the the straight one and the two bended ones)
Concave, convex, plane mirrors
400
What do white objects do to light when it comes at them
The white objects reflect light.
400
What are conductors and insulators?
Conductors let electrical currents move freely, insulators don't.
400
What are the parts of a wave?
Amplitude, Wavelength, Crest and trough
400
Where does the auditory nerve take the electrical signals to?
The brain
500
What are the 7 wavelength names?
Radio, microwaves, infrared, visible, ultraviolet, x ray and gamma
500
Why is the sky blue?
molecules in the air scatter blue light more than the red light
500
Whats resistance and what is it measured in?
Resistance is the items ability to oppose the flow of electricity, its measured in ohms.
500
What are the machines used to measure sound waves?
Oscilloscopes
500
What are all the parts of the ear?
Auricle, ear canal, ear drum, auditory bones, cochlea, auditory nerves and semicircular canal.
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