Space & physics flashcards

Question 1

Which planet is closest to the Sun?

Accepted Answer

Mercury.

Question 2

Which is the largest planet in our solar system?

Accepted Answer

Jupiter.

Question 3

How many planets are in our solar system?

Accepted Answer

Eight.

Question 4

What does the Moon orbit?

Accepted Answer

The Earth.

Question 5

About how fast does light travel?

Accepted Answer

About 300,000 kilometers (186,000 miles) per second.

Question 6

What is a light-year?

Accepted Answer

The distance light travels in one year.

Question 7

What is an orbit?

Accepted Answer

The path an object takes around a planet or star.

Question 8

What is the name of our galaxy?

Accepted Answer

The Milky Way.

Question 9

Why do we have day and night?

Accepted Answer

The Earth spins around its axis, once about every 24 hours.

Question 10

At what temperature does water boil at sea level?

Accepted Answer

100 °C (212 °F).

The cards