Electromagnetic Waves (wave properties)

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through the vacuum of space and consist of oscillating electric and magnetic fields perpendicular to each other and to the direction of wave propagation.

Front

What is the speed of electromagnetic waves in a vacuum?

Back

The speed of electromagnetic waves in a vacuum is approximately 299,792 kilometers per second (or about 300,000 km/s).

Front

Which type of electromagnetic wave has the longest wavelength?

Back

Microwaves have the longest wavelength among the options provided (X-rays, Microwave, Infrared, Ultraviolet).

Front

Which color of visible light has the highest energy?

Back

Violet light has the highest energy in the visible spectrum.

Front

Which color of visible light has the lowest energy?

Back

Red light has the lowest energy in the visible spectrum.

Front

What is the relationship between wavelength and frequency in electromagnetic waves?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, from radio waves to gamma rays, including visible light.

Front

What is the frequency of a wave?

Back

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

Front

What is the wavelength of a wave?

Back

Wavelength is the distance between successive crests (or troughs) of a wave, usually measured in meters.

Front

What is the formula to calculate the speed of a wave?

Back

The speed of a wave (v) can be calculated using the formula: v = frequency (f) × wavelength (λ).