AST.2a Energy in the Universe Review

Front

What is the speed of light in a vacuum?

Back

300,000,000 m/s

Front

What is wave interference?

Back

Wave interference occurs when two waves travel in phase and occupy the same space, affecting the resulting wave's amplitude.

Front

How does frequency affect electron ejection from a metal surface?

Back

Only high frequency light causes the ejection of a greater number of electrons from a metal surface.

Front

What happens to light from a star moving towards Earth?

Back

The light shifts towards the blue side of the electromagnetic spectrum.

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as one increases, the other decreases.

Front

Define amplitude in the context of waves.

Back

Amplitude is the maximum extent of a wave's oscillation, measured from its rest position.

Front

What is the electromagnetic spectrum?

Back

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

Front

What is the formula for calculating the speed of a wave?

Back

Speed = Wavelength x Frequency.

Front

What is a photon?

Back

A photon is a quantum of electromagnetic radiation, representing a particle of light.

Front

Explain the Doppler effect in relation to light.

Back

The Doppler effect refers to the change in frequency or wavelength of light from a source moving relative to an observer.