The part of the eye that is a transparent membrane that protects the eye and refracts light is the....
What is the cornea.
100
What type of lens is used to correct far-sighted vision?
What is a convex lens.
100
________ waves have the lowest frequencies of all of the electromagnetic waves and carry the least amount of energy.
What are radio waves.
100
Which type of light bulbs use more energy and are hot to touch?
What are incandescent bulbs.
200
What causes sound waves?
What are vibrations.
200
The back surface of the eye is the ________.
What is the retina.
200
What type of lens is used to correct near-sighted vision?
What is a concave lens.
200
When a light hits an opaque object, what happens to most of the light?
Is the light reflected, absorbed, deflected, or scattered?
What is most light is reflected.
200
Janet wants to make the pitch of a sound wave lower. What should Janet do?
a) increase its speed
b) decrease its frequency
c) Increase its amplitude
d) decrease its wavelength
What is B - Decrease its frequency.
Remember - higher pitches have higher frequencies!
300
The pitch of sound is determined by the ______ of the wave.
What is the frequency.
300
What part of the eye is responsible for controlling the amount of light that enters?
What is the pupil.
300
____ light has the longest wavelength (lowest frequency), and ________ light has the shortest wavelength (highest frequency).
What is Red/Blue?
300
Allie noticed that a stick she placed in a pond appeared to be broken at the point of entering the water. What caused this?
What is the refraction of light waves from the water.
300
DAILY DOUBLE
How is wave speed calculated?
What is wavelength x frequency.
400
In which of the following materials are sound waves likely to travel most quickly?
a) Liquid Water
b) Air at 4 degrees C.
c) A piece of steel.
d) Air at 70 degrees C.
What is C - a piece of steel. Remember that sound waves travel faster in solids rather than gases or liquids!
400
What type of image does a flat mirror produce?
a) An image reflected to the left.
b) An image bounced at a sharp angle.
c) An image reflected back at the same angle.
d) An image right-side down
What is C - An image reflected back at the same angle.
400
A magnifying glass is an example of a ________ lens.
What is a convex lens.
400
Most of the electromagnetic waves given off by an object at room temperature are ________ waves.
What are infrared waves.
400
What would you measure to determine a wave's frequency?
a) The distance from crest to trough.
b) Its height from teh crest to its resting point.
c) How often a compression crosses a fixed point.
d) The distance between adjacent crests.
What is C - How often a compression crosses a fixed point.
500
How do vibrations get from the eardrum to the cochlea?
a) air is pushed into the eardrum.
b) vibrations hit the outer ear.
c) The brain first receives a sound wave.
d) They pass through the hammer, anvil, and stirrup.
What is D - they pass through the hammer, anvil, and stirrup.
500
What is the order of electromagnetic waves on the electromagnetic spectrum?
Beginning from left to right?
What is:
Radio waves, microwaves, infrared waves, visible light waves, ultraviolet waves, X-rays, Gamma Rays.
500
How does the lens of the eye focus light on the retina?
a) It causes light rays entering the eye to spread apart.
b) It bends light rays entering the eye in a way that brings them together.
c) It brings light rays entering the eye together and then spreads them apart.
d) It forces light rays to travel straight throug the eye without being refracted.
What is B - It bends light rays entering the eye in a way that brings them together.
500
The sun emits mainly what two types of waves?
What are infrared waves and visible light waves.
500
With regard to hearing, what is the function of the middle ear?
a) Carries vibrations from the eardrum to the inner ear.
b) Sends electrical signals to the brain.
c) Acts like a satellite and receive sound waves.
d) Increases the pitch of a sound wave.
What is A - Carries vibrations from the eardrum to the inner ear.