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jack week

on 5 September 2014

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Transcript of Vocabulary

#1: Different materials respond differently
to light and sound. White materials
reflect light and absorb no light.
For example, in summer you should wear white
clothes so light won’t give you so much heat.
Black materials don’t reflect light but they do
absorb light. That’s why in winter you should wear
something dark so your body can stay warm.
When light hits a rain drop the clearness of the raindrops
make a rainbow. Sound can’t be too low or too
high or else we couldn’t hear it. For example
if you blow a flute to loud then the sound is so loud that
it sounds like nothing is playing. If the frequency of
sound is high then the sound will be high-pitched and its
the opposite for low sound.
Something that something lives or
travels through.

synonym: material
A disturbance that moves energy,
without requiring matter to move with it.

synonym: disturbance
Vocabulary:Transfer of Energy
Created & Presented by:
Jillian Gordy
Whitney Herd
Estefania Acosta
Elise Ballash
Kyla Huelle

Estefania Acosta
Elise Ballash
Kyla Huelle
Whitney Herd
Jillian Gordy
Longitudinal waves
When particles in a wave
vibration move parallel to
the direction of the wave.

example: sound wave
Mechanical Wave
A wave requiring a medium to travel through.

example: ocean waves
Transverse Wave
when the particles in a wave
move perpendicular to the
direction of the wave.

example: surface ripples on water
Electromagnetic Waves
electic waves with magnetic fields vibrating

The height of a wave
Visible light
Electromagnetic radiation that produces visual light

Example: Microwaves
Part of the electromagnetic spectrum (its wave length is shorter than visible light but longer than x-rays)

Example: The waves the sun disperses
Radiation of high energy and very short wavelength (between ultraviolet and gamma)

Example: MRI scan (Catscan)
Gamma Rays
shorter wave length than x-rays

example: cancer radiation treatments
Allowing light through so things behind can be easily seen

allowing some light through not detailed
Synonym: semitransparent
Not allowing light through at all, not transparent
One thing absorbs or is absorbed by another
soak up
The return by a surface of light, heat or sound without absorbing it
Synonym: send back
Deflecting light, waves ect. between mediums
Synonym: deflected
radiation or particles are deflected
Synonym: disperse
Energy Transformation
changing one form of energy to another
Example: A toaster is a perfect example, the electrical energy goes into the toaster and changes to thermal heat then a sound when the toast is done
Kinetic Theory of Matter
large numbers of small particles are in motion

Example: liquid changing to water vapor because of heat
Law of Conservation of Energy
energy of a system is constant despite change

Example: Hitting a nail with a hammer. Kinetic energy from the hammer is transferred to the nail.
lot of progress with hardly any effort

Synonym: orderly
degree of heat in an object

Synonym: heat
scales of temperature

Example: amount
expands and contracts with heating and cooling tells the temp.

Synonym: thermostat
A wave that has both electric and magnetic
fields that vibrate at right angles
to each other

example: radio waves

The height of a wave

synonym: displacement
The distance between
two crests in a wave.

example: repeating shape

Wave Period
The time it takes for a wavelength
to pass a certian point.

synonym: one wave cycle
The amount of waves that pass
by in a given amount of time

Synonym: cycle

The unit rate
of frequency
equal to one
cycle per sec.

The different points that are reached at the same time instant
by a propagating through a medium.

Example: the crest of a water wave

Wave Speed

synonym: the rate of travel
Electromagnetic spectrum
The range of
different waves
measured by
and wavelengths.

example: radio wave, mircowaves, etc.
Radio Waves
Radio waves are the longest waves,
and broadcast many signals.

example: transmits telivision singnals
Microwaves are used to
cook food, and are also
used in cell phones.

example: used in the kitchen often
Infrared light is right below red. It is displayed
in temperature.

synonym: heat induced light
The transfer of energy
as electromagnetic waves

example: light buld
Thermal energy
A form of energy created by an increase in temperature, also known as heat.

Example: Fire gives off thermal energy.
The quality of having a high temperature, or to make an object become warm.

Synonym: Warmth
The amount of heat required to raise the temperature of one gram of water 1 degrees celcius.

Synonym: Thermochemical calorie
The transfer of energy through direct contact.

Example: If you where to touch a stove top, heat would directly travel from the stove to your hand.
An object that lets electricity easily flow through it.

Example: A copper wire.
An object that rejects the easy flow of electricity.

Example: Rubber
A process of heating where cold water (or any material) sinks and hot water rises.

Example: Boiling water on a stove because the water rises, then turns cold and falls.
Power that could translate into resistance, motion, or a physical change.

Synonym: Power
Sound Energy
A form of energy that involves vibration or disturbance of matter. Sound waves require a medium to travel through.

Example: If you were to play a guitar, the sound you hear is sound energy.
Light Energy
Electromagnetic energy that is visible to humans.

Example: The light a flashlight gives off is an example of light energy.
Electrical Energy
Energy made available by an electric charge that flows through a conductor.

Example: Lightning
Potential Energy
The type of energy that is created by the position an object is in.

Example: When you are sitting on top of the first hill on a roller coaster.
Kinetic Energy
The energy an object possesses while in motion.

Example: When you go down the first hill on a roller coaster.
Mechanical Energy
A form of energy that allows the ability to do work. Mechanical energy starts as potential and becomes kinetic.

Example: An apple that falls off a tree because it was still but then it fell.
Chemical Energy
Energy that is transformed through a chemical reaction

Example: Wood burning because bonding and breaking of atoms are occuring.
Chemical Reaction
A process when a substance's molecular structure is rearranged.

Example: Mixing baking soda and vinegar to produce carbon dioxide gas.
Electrical Energy
Energy produced by the flow of
electical currents through a

Example: Electrical energy is transferred to the lamp as light energy and thermal energy.
Nuclear Energy
he energy released during nuclear
fission(splitting atoms) or fusion
(combining atoms)

Example: The atomic bomb emits
nuclear energy by fission.
Electrochemical Energy
Producing electrical energy from chemical energy.
Example: The energy stored in a battery.
Chemical Properties
Properties that become noticed during/after a chemical reaction.
Example: Spoiled milk is a chemical property, because you can not undo the reaction.
Boiling point
The temp. at which
a substance reaches
a fixed pressure.
Example: Waters
boiling point is
212 degrees F.
Light Waves
Waves of visible light on
the electromagnetic
Example: We see the color
red because of light waves
that reflect off of an object
and to our eyes, making us
see that object as red.
Sound Waves
A disturbance in a medium like air
caused by vibrations.
Example: When you strum a guitar,
the strings vibrate, creating sound
Tightly compressed particles
creating a stable object that
holds its form.
Example: A piece of glass is
a solid.
A substance that takes
the shape of its container.
Synonym: Fluid
Particles that move freely and fill
the room/container its in.
Example: The air we breath and
the C2o we breath out are both gases.
Wave Crest
The highest point in a wave.
Synonym: Wave peak
When oppisite forces are equal.
Synonym: Balance
Melting Point
The point when a solid reaches
a certian temp. and liquifies.
Example: The melting point 0f ice
is 32 Degrees F.
1. How do the properties
of light and sound determine
their response to various
#1: Different materials respond differently to light and sound. White materials reflect light and absorb no light. For example, in summer you should wear white clothes so light won’t give you so much heat. Black materials don’t reflect light but they do absorb light. That’s why in winter you should wear something dark so your body can stay warm. When light hits a rain drop the clearness of the raindrops make a rainbow. Sound can’t be too low or too high or else we couldn’t hear it. For example if you blow a flute to loud then the sound is so loud that it sounds like nothing is playing. If the frequency of sound is high then the sound will be high-pitched and its the opposite for low sound.
#2: Energy transfers within a system by waves. The waves can be classified by the direction they move in. Longitudinal waves move particles back and forth in the same direction the wave travels. There is also another classification name if waves called transverse waves. In a transverse wave, particles move perpendicularly to the direction the wave travels.
#3: Heat energy transfers within a system in three ways. They are radiation, conduction, and convection. Radiation transfers heat by electromagnetic waves. Radiation is used in microwaves to heat food. Conduction can transfer heat when two things or substances are in direct contact. Medal can get really hot if it has contact with boiling water, which is why you should cook with wooden spoons because they are not good conductors. Convection is when hot liquid or gas rises to cool air of the liquid or gas and then goes down to hot liquid or gas. Its like a rotation.

#4: Light can respond to a variety of materials in a different way because of the medium of the material. With transparent materials light can pass right through it. For example: the sun is shining through the window because it is transparent. But that is the opposite for opaque materials. For example: light bounces off the orange because it is opaque. Light on transclucent materials may appear fuzzy, but you can still see a little through it.

#5: Light and sound both run in waves. Also they can both travel through air. Both act differently when they travel through different materials. They both can be reflected on different objects. They also have a wavelength, frequency, amplitude, and they travel in all directions

#6: The Electromagnetic spectrum is organized from high frequency amd low wavelength to low frequency and high wavelength. It starts out with gamma rays. They are used to kill cancer cells and then comes X-rays which are used to see through your body. Ultraviolet can kill give you skin cancer so it's good to put on sunscreen at the beach. Visible light is what we can see like a table right in front of us. Infrared light pictures are used to determine who a person is by heat signatures. Microwaves are used to heat our food. Radio waves transmit sound through a radio.

#7: Removing or adding heat can be both bad and good. If we remove heat from a Popsicle then it becomes what it says in its name a Popsicle. Though, if we put a hot pocket in the freezer it will condense and it will be I not edible. If we add heat to a hot pocket then we can eat it. If we add heat to a Popsicle then the Popsicle melts and the only thing you can do is drink it.

#8: Molecules are affected by heat. Heat can make molecules go faster or slower. Heat can also make the solid turn into liquid or gas. When the temperature gets higher, the molecules move faster and it expands. When temperature gets lower, the molecules move slower, and contract.

#9: Different forms of energy have different transformations from one form to another. For example you use potential energy to turn on a light switch. Then the light switch turns electricity power into light and thermal energy within a light bulb. Solar panels transform light from the sun to electricity. So do wind turbines with wind.

#10: There are various forms of energy. There are two types of energy. They are potential energy and kinetic energy. Kinetic energy is the motion. Potential energy is the stored energy. There is chemical energy, and mechanical energy are both potential energy.
Radiant (light) energy, nuclear energy, electrical energy, heat (thermal) energy, and energy of sound are the other forms of energy.

#11: Energy doesn't have anything so we can tell it's there. Therefore it can be difficult to recognize. We can recognize energy when it is transferred through absorption of heat. For example wearing a black shirt and feeling the temperature rising is a way you can recognize energy. Energy can also cause fires so that can be a way of recognizing it. Energy is everywhere.

#12: The law of conservation of energy is saying that energy cannot be created or destroyed, only changed from one form to another. There are many ways to cite evidence of the law of conservation of energy. One example is when you run across a room and bump into someone pushing them to the floor. The kinetic energy you possessed because of your movement was transferred to them, causing them to move. This is transferring your energy to the person you bumped into which proves the law of conservation of energy.
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