Test 1 Study Game

Front

What was Galileo’s biggest contribution to early astronomy?

Back

He significantly improved the telescope.

Front

What does an Astronomical Unit (AU) represent?

Back

The distance from the Earth to the Sun.

Front

How many light years (ly) are in 1 parsec (pc)?

Back

3.26 ly.

Front

Which type of radiation has the shortest wavelength, and highest frequency?

Back

Gamma Rays.

Front

What is the study of the Earth's atmosphere and atmospheric events called?

Back

Meteorology.

Front

What is the law of universal gravitation?

Back

Every mass attracts every other mass in the universe with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What is the speed of light in a vacuum?

Back

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

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates energy through nuclear fusion.

Front

What is the main component of the Sun?

Back

Hydrogen, which makes up about 74% of its mass.

Front

What is the significance of the Hubble Space Telescope?

Back

It has provided deep space images and contributed to our understanding of the universe.