Heat Transfer
Interactions of Materials
Matter
Electromagnetic Sprectrum
Wave Structure
100
The flow of thermal energy from one object to another.
What is heat?
100
A material, such as a metal, that allows electricity and heat to flow easily and very well through it.
What is a conductor?
100

The most compact type of matter.

What is a solid?

100
The portion of the spectrum that our eyes pick up.
What is visible light?
100
Highest point of a wave.
What is the crest?
200
The direction heat always flows.
What is from a warmer object to a cooler object?
200
A material, such as wood, air, glass, or plastic, that does not allow heat or electricity to flow very well through it.
What is an insulator?
200

The type of matter in which atoms can easily slide past each other, resulting in matter than has definite volume, but no definite shape.

What is liquid?

200
Energy with a little more energy (shorter) wavelength than violet visible light.
What is ultraviolet (UV) radiation?
200
Distance between consecutive crests or troughs (one complete wave cycle).
What is the wavelength?
300
Heat flow by direct contact between two objects.
What is conduction?
300
Term for when materials change volume based on changes in temperature. For example, a substance taking up a larger volume when it is warmed.
What is thermal expansion (or thermal contraction)?
300

When a material changes from one state to another, and the atoms are moving faster than they were before, this is as a result of the transfer of this type of energy.

What is the thermal energy?

300
Energy with a little less energy (longer wavelength) than red light.
What is infrared radiation (heat) radiation?
300
The number of complete wave forms that pass a given point in a second.
What is the frequency (measured in Hertz (Hz))?
400
Heat movement within a fluid, in which warmer is less dense and rises and colder is more dense and sinks.
What is convection?
400
Bouncing of light (or another form of energy) off a smooth surface at the same angle it hits (like a mirror).
What is reflection?
400
Matter that has no definite shape or volume.

What is the gas?

400
Two forms of energy that have the longest wavelengths, and thus the least energy.
What are microwaves and radio waves (would also accept cell phones)?
400
Another term for the frequency of a sound wave.
What is the pitch?
500
Movement of energy as waves, and it can occur even through empty space.
What is radiation?
500
Bending of light (or another kind of energy) as it enters another material that makes it change speed (such as a prism).
What is refraction?
500

When any type of heated matter cools down as a result of its surroundings being cooler, this means that the matter and the surrounding have reached this.

What is thermal equilibirium?

500
Two types of energy that have the shortest wavelength, and thus the most energy packed into them.
What are x-rays and gamma rays?
500
The relationship between wavelength and frequency.
What is as wavelength gets longer, frequency gets less; or, as wavelength gets shorter, frequency gets greater.
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