Waves

Front

What is a wave?

Back

A wave is a disturbance that transfers energy from one place to another without transferring matter.

Front

What are the two main types of waves?

Back

The two main types of waves are mechanical waves (which require a medium, like sound waves) and electromagnetic waves (which do not require a medium, like light waves).

Front

What is frequency in the context of waves?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

How does the medium affect the speed of sound?

Back

Sound travels faster in solids than in liquids, and faster in liquids than in gases because the molecules are closer together in solids.

Front

What is the relationship between frequency and pitch?

Back

Higher frequency waves produce higher pitch sounds, while lower frequency waves produce lower pitch sounds.

Front

What is an earthquake?

Back

An earthquake is the shaking of the Earth's surface caused by the sudden release of energy in the Earth's lithosphere.

Front

What is the medium in which sound travels fastest?

Back

Sound travels fastest in solids, such as metal, because the molecules are closely packed together.

Front

What is the difference between longitudinal and transverse waves?

Back

In longitudinal waves, the particles of the medium move parallel to the direction of the wave (like sound waves). In transverse waves, the particles move perpendicular to the direction of the wave (like light waves).

Front

What is amplitude in a wave?

Back

Amplitude is the maximum displacement of points on a wave from its rest position, related to the energy of the wave.

Front

What is the role of the ear in hearing sound?

Back

The ear detects sound waves and converts them into electrical signals that the brain interprets as sound.