Electromagnetic Spectrum Worksheet

Front

What is the equation that relates the speed of light (C), wavelength (λ), and frequency (ν)?

Back

C = λν

Front

If an AM radio station broadcasts at 9.95 x 10^5 Hz, how do you calculate the wavelength of this radiation?

Back

Use the equation C = λν, where C is the speed of light (approximately 3 x 10^8 m/s). Rearrange to find λ = C/ν.

Front

Which type of electromagnetic wave has the longest wavelength and the lowest frequency?

Back

Radio Waves

Front

Define electromagnetic waves.

Back

Electromagnetic waves are electric and magnetic fields (energy) that travel through empty space very quickly.

Front

How do you calculate the velocity of a wave given its frequency and wavelength?

Back

Use the formula velocity = frequency × wavelength.

Front

What is the velocity of a wave with a frequency of 10 Hz and a wavelength of 4 m?

Back

40 m/s (calculated using the formula velocity = frequency × wavelength).

Front

What is the frequency of infrared light that has a wavelength of 1.10 x 10^-6 m?

Back

2.73 x 10^14 Hz (calculated using the equation C = λν).

Front

What is the speed of light in a vacuum?

Back

Approximately 3 x 10^8 m/s.

Front

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

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What type of electromagnetic radiation is used in remote controls?

Back

Infrared radiation.