Forms of energy
Parts of a wave
Properties of waves
The speed of sound
Vocabulary
100

This is the energy of motion, possessed by any moving object.

Kinetic Energy

100

This is the highest point of a transverse wave.

Crest/peak

100

This property of sound depends directly on frequency; a high frequency creates a high sound, like a whistle.

Pitch


100

Sound cannot travel through this environment because there are no atoms or molecules to vibrate.

A vaccum

100

This term refers to the substance or material (such as solid, liquid, or gas) through which a wave travels.

Medium

200

This type of potential energy is stored in food, batteries, and fuels, and is released during a chemical reaction.

Chemical energy

200

This is the distance from one crest to the next consecutive crest, or from one trough to the next.

Wavelength


200

This unit is used to measure the intensity or loudness of a sound wave.

Decibel (dB)

200

Sound travels fastest through this state of matter because the particles are packed tightly together.

Solid

200

This is the specific unit used to measure the frequency of a wave, equal to one cycle per second.

Hertz

300

An object's total mechanical energy is the sum of these two types of energy.

Kinetic and potential energy

300

Measured from the resting position to a crest or trough, this property determines the total energy carried by a wave.

Amplitude


300

Sound is classified as this general type of wave because it requires a physical medium to travel through.

Mechanical wave

300

Sound travels slowest through this state of matter because the particles are far apart and collide less frequently.

Gas

300

This term describes a wave in which the particles of the medium vibrate parallel to the direction the wave travels.

Longitudinal wave

400

This law states that energy cannot be created or destroyed, only transformed from one form to another.

Law of conservation of energy

400

In a longitudinal wave, these are the regions where the particles are crowded together closely.

Compressions

400

This phenomenon is a reflected sound wave that bounces back to the listener after hitting a hard surface.

Echo

400

Increasing this environmental factor in a gas like air makes the molecules move faster, which in turn increases the speed of sound.

Temperature

400

In a longitudinal wave, this is the term for the spaced-out region where the particles are relatively far apart.

Rarefaction

500

As a roller coaster car rolls down the first hill, this type of energy decreases while kinetic energy increases.

Gravitational potential energy

500

This term describes the number of wave cycles that pass a given point per second, usually measured in Hertz (Hz).

Frequency

500

Sound waves come under this type of wave

Longitudinal wave

500

This type of marine technology uses underwater sound waves to map the ocean floor and detect objects.

SONAR

500

Derived from the Latin word for "bouncing back," this is the specific scientific term for the throwing back by a body or surface of light, heat, or sound without absorbing it.

Reflection