Universe Unit Review

Front

What happens to frequency when wavelength decreases?

Back

Frequency increases.

Front

Which star has the lowest temperature?

Back

Star C has the lowest temperature.

Front

What causes the seasons on Earth?

Back

The Earth's tilt causes the seasons.

Front

What season is represented in the northern hemisphere during December?

Back

Winter is represented in the northern hemisphere.

Front

What season is the northern hemisphere having when it is tilted towards the Sun?

Back

Summer is experienced in the northern hemisphere.

Front

What is the relationship between wavelength and frequency in waves?

Back

As wavelength decreases, frequency increases.

Front

What is the main reason for the change in seasons?

Back

The tilt of the Earth's axis.

Front

What is the temperature of a red star compared to a blue star?

Back

A red star has a lower temperature than a blue star.

Front

What is the effect of the Earth's elliptical orbit on seasons?

Back

The elliptical orbit has a minimal effect; the tilt is the primary cause.

Front

What is the definition of a star?

Back

A star is a massive, luminous sphere of plasma held together by gravity.