Electromagnetic Waves and Telescopes RETEACH- from SAVVAS

Front

What is an electromagnetic wave?

Back

An electromagnetic wave is a wave that consists of oscillating electric and magnetic fields and travels through space at the speed of light.

Front

What is amplitude in the context of waves?

Back

Amplitude is the maximum height of a wave from its rest position, indicating the energy of the wave.

Front

What does wavelength refer to in wave physics?

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

Define frequency in terms of waves.

Back

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

Front

How does the frequency of a wave relate to its wavelength?

Back

The frequency and wavelength of a wave are inversely related; as frequency increases, wavelength decreases, and vice versa.

Front

What are gamma rays and their significance?

Back

Gamma rays are a type of electromagnetic radiation with the shortest wavelength and highest frequency, used in medical imaging and treatments.

Front

What is the relationship between amplitude and energy in waves?

Back

Higher amplitude waves carry more energy, while lower amplitude waves carry less energy.

Front

What happens to the frequency of a wave if the number of cycles increases in a given time?

Back

If the number of cycles increases in a given time, the frequency of the wave increases.

Front

What is the difference between visible light and infrared light?

Back

Visible light has higher frequencies and shorter wavelengths than infrared light, which is not visible to the human eye.

Front

Explain the concept of wave speed.

Back

Wave speed is the distance a wave travels per unit of time, calculated as the product of frequency and wavelength.