Unit 9- Properties of Waves

Front

What is an electromagnetic wave?

Back

An electromagnetic wave is a wave that can travel through the vacuum of space and consists of oscillating electric and magnetic fields.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What is the difference between mechanical waves and electromagnetic waves?

Back

Mechanical waves require a medium (solid, liquid, or gas) to travel through, while electromagnetic waves do not require a medium and can travel through a vacuum.

Front

What is a transverse wave?

Back

A transverse wave is a type of wave where the particles of the medium move perpendicular to the direction of the wave's travel.

Front

What is a longitudinal wave?

Back

A longitudinal wave is a type of wave where the particles of the medium move parallel to the direction of the wave's travel.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive points that are in phase on a wave, such as crest to crest or trough to trough.

Front

What is frequency?

Back

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

Front

What is amplitude?

Back

Amplitude is the maximum displacement of points on a wave from its rest position, indicating the wave's energy.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, organized by wavelength or frequency.

Front

What is infrared radiation?

Back

Infrared radiation is a type of electromagnetic wave that is primarily associated with heat and is used in thermal imaging.