Stellar Spectra

Front

Put the visible light colors in order from longest wavelength to shortest wavelength.

Back

Red, Orange, Yellow, Green, Blue, Indigo, Violet

Front

What does a wave carry?

Back

Energy

Front

How many protons does helium (He) have?

Back

2

Front

This spectrum is an example of a(n) _____ (emission spectrum, absorption spectrum, continuous spectrum, black body spectrum).

Back

Emission spectrum

Front

What is the visible spectrum?

Back

The range of wavelengths of light that can be seen by the human eye, typically from about 380 nm (violet) to 750 nm (red).

Front

What is an emission spectrum?

Back

A spectrum that shows the wavelengths of light emitted by a substance, indicating the presence of specific elements.

Front

What is an absorption spectrum?

Back

A spectrum that shows the wavelengths of light absorbed by a substance, indicating the presence of specific elements.

Front

What is the relationship between wavelength and frequency?

Back

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

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (km/s).

Front

What is the significance of the hydrogen spectrum in astronomy?

Back

The hydrogen spectrum helps identify the presence of hydrogen in stars and other celestial bodies.