Let There Be Light!
The most important source of light and energy.
Sun
Describes how low or high an object sounds.
PITCH.
What protects the eye from dirt an debris?
Eyelids
Splain the difference between reflection and refraction.
Reflection are waves bouncing back at you and refraction is the bending of waves.
Name the 3 subatomic particles.
protons, neutrons, and electrons
The light we can see is called _________________.
VISIBLE LIGHT.
Sound waves travel by ________________ the molecules.
Vibrating
What is the colored part of our eye called?
The Iris
Splain how your eyes and brain work together to perceive an image.
Light enters your eye, hits the retina, and the signal travels to brain and you see the image.
What element's symbol is H?
Hydrogen
When an object looks a certain color ex: a green leaf, that's because the other colors have been ______________.
ABSORBED.
An ____________ occurs when a sound wave bounces back.
ECHO.
___________ changes size to let more or less light into the eye.
Pupil
Splain how pitch changes with size.
Larger instruments make a lower pitch and smaller instruments make a higher pitch sounds.
What is the purpose of the outside part of the ear?
funnel sound into the middle ear
Joe has a red apple. He takes the apple into a dark room and shines a blue light onto the red apple. What color will the apple look like it is?
Black or brown
It would be hard to communicate with aliens in space because...
Sound cannot travel in space because there is no medium to vibrate
What sends the signal to the brain?
Optical nerve
Splain why the colors of a rainbow are always in the same order.
Because each color is a different wavelength and red had the longest wavelength and violet has the shortest, with the other colors in between.
What musical family does a clarinet belong to?
woodwind
Solid because the molecules are closer together so it is easier for the energy to be transferred
Draw a wave with a low amplitude and high frequency and a wave with a high amplitude and low frequency.
See boards
Explain what happens when you go from a dark room into bright light.
Our irises will enlarge to make the pupil smaller so that too much light doesn't enter our eyes. It would shrink when we go into a dark room to allow the pupil to get larger to take in more light.
How are rainbows made?
As sunlight travels through rain, the light is bent and results in dispersing the different wavelengths of color. (red on top and violet always on the bottom)
What is the order of colors in a rainbow?
red, orange, yellow, green, blue, indigo, violet