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Glossary of Light, Sound, and Electricity Science Test

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Created by AustinMcRae

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The sun gives off huge amounts of _________ that travel To Earth through the vacuum of space called ________ radiation (EM).
Electromagnetic Energy,
Electromagnetic
EM is _____ energy given off by the sun and other objects
wave
Most types of EM radiation are ___________
invisible
___________radiation causes some things to glow and is what gives you sunburn.
Blacklight or Ultraviolet
___________ radiation causes you to feel warm in the sunlight
Infrared
Most types of radiation are invisible.
True or False?
True
Name two types of EM radiation?
Gamma rays, -rays, Ultraviolet rays, microwaves, radio waves
___________ is a type of EM radiation that you can see.
Visible loght
EM radiation can cause changes in matter.
True or False?
True
Give an example of EM radiation being changed to other forms of energy.
solar calculator
Can EM radiation be changed to other forms of energy?
yes
Can light start chemical reactions?
If yes, give an example.
Yes
Photosynthesis (plant cells store light energy from the sun as chemical energy in chloroform.
Most chemical reactions that give off light also give off ______.
heat
_____ is a disturbance that that moves away from its starting point
wave
Light waves can travel through a _________.
vacuum
Vacuum is a region empty of any ____________________.
matter
Wavelength is ______________________________________________________.
the distance between the high points of waves
Light waves are very ________.
short
Different colors of light travel at different __________________.
wavelengths
___________ is the number of waves produced each second.
Hertz
hertz (Hz) is a unit used to measure _____ _______________.
wave frequency
_____________ is the bouncing back of light from a surface.
Reflection
Any smooth surface that reflects most or all of the light can act as a __________.
mirror
Plane mirror is ______________________________________.
a mirror that doesn't bend
Concave mirror is ________________________________________________.
A concave mirror makes images appear ____________.
a mirror that curves inward in the middle,
larger
Convex mirror is _________________________________________.
A convex mirror makes images appear ___________.
a mirror that curves outward at the middle,
smaller
_________________ is the bending of light as it passes from one material to another.
Refraction
An example of refraction is a pencil sticking out of a glass of water. You are seeing the top of the pencil through air which is a ___ and the bottom through water which is a ___________.
gas,
liquid
Change in speed: light waves _____ _____ as they pass from gas to liquid, causing them to be refracted and _____ _____________.
slow down,
change direction
Light and Lenses:
A lens is a ____________ transparent object with at least one curved surface.
transparent
__________ lens is thicker in the center than at the edges, brings light rays together at a focal point
Convex
Convex lens causes nearby images to be _________ and ____ ______ _____; farther images are ________ and ____ _______.
larger,
right side up,
smaller,
upside down


________ lens is thicker on the edges than in the middle and causes rays to spread apart.
Concave
Concave lenses make images look ____ but always ____ ___ __.
smaller,
right side up
Infrared light is _________.
heat
Energy can or cannot be created?
Can't
The Telescope:
___________ telescope uses two lenses that refract light.
Refracting
(RefRact has 2 Rs so 2 lenses.)
Reflecting telescope uses a ______ mirror and a lens.
plane
Simple microscope uses ___ lens
one
Compound microscope uses __ convex lenses and a _______.
two,
mirror
Making rainbows: sunlight passing through water droplets ( a natural prism) __________ the light ray into specific colors.
refract
ROY G. BIV
red, orange, yellow, green, blue, indigo, violet
Opaque means _____________________________________.
can't be seen through
Something opaque ________ light is absorbed and ________ is reflected
some,
some
_____________ - allows light to pass through (glass, shallow water)
Transparent
Something transparent absorbs very _________ light and can reflect __________.
little,
some
Translucent lets light pass through but __________ it, colors may be seen but not clearly
scatters
Name of sound:
_____________ are back and forth movements of matter
Vibrations
___________ is a form of energy you can hear and that travels in waves.
Sound
Vibrating objects produce ________.
sound
__________ objects vibrate whatever they touch.
Vibrating
Length of vibrating objects affect the __________ of the sound made.
pitch
Electrical Energy is produced by __________ ___________.
electric charges
_________ electricity is energy that does not move except when it discharges (lightning).
Static
Current electricity- a constant flow of electric ___________ (lights, flashlight, oven).
electrons
A ___________ circuit is a closed path through which electricity can flow
complete
Current electricity needs the following:
__________ such as a _________
__________ or wires to carry electric current
a _______ like a bulb, and a
_________ found somewhere along the cicuit to open it.



S, C, L, S
SOURCE such as a battery
CONDUCTOR or wires to carry current
LOAD
SWITCH to open the circuit



When the circuit is ________ the electricity flows
complete
Series: _________________; if there is a break in the path the current will not flow
one path for the current
______________ is multiple pathways or branches; if there is a brak in a branch, the current ___ flow through another branch
Parallel,
can
Types of Energy:
1.____________
2. ___________
3.____________
4.____________
5. ___________




S,H,E,L,S
SOLAR,
HEAT,
ELECTRIC,
LIGHT,
SOUND






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