Review: Trimester 1 Earth Science

Front

What characteristic organizes the electromagnetic spectrum?

Back

Wavelength

Front

What does Kepler's Second Law state about the speed of an orbit?

Back

The speed of the orbit does change.

Front

What is the Doppler Effect?

Back

An apparent change in frequency of a wave due to the relative motion between a wave source and an observer.

Front

What happens to the light of an object moving very fast towards the Earth?

Back

It experiences more blueshift.

Front

What force causes dust particles to stick together in a nebula?

Back

Gravity.

Front

Define the electromagnetic spectrum.

Back

The range of all types of electromagnetic radiation, organized by wavelength.

Front

What is the relationship between wavelength and frequency?

Back

As wavelength increases, frequency decreases.

Front

Explain the concept of redshift.

Back

Redshift occurs when light from an object is stretched to longer wavelengths as it moves away from the observer.

Front

What is the significance of gravity in space?

Back

Gravity is the force that attracts objects towards one another, crucial for the formation of stars and planets.

Front

How does the speed of light relate to the Doppler Effect?

Back

The speed of light remains constant, but the frequency of light changes based on the motion of the source.