Unit 7 Student Notes Study Guide

What type of star is the Sun?

• Large star

• Medium sized star

• Small star

How far is the Sun from the Earth?

• 150,000,000 km

• 384,000 km

• 12,756 km

How many Earths would fit inside the Sun?

• One million Earths would fit inside the Sun.

• Five hundred thousand Earths would fit inside the Sun.

• Two million Earths would fit inside the Sun.

• Ten thousand Earths would fit inside the Sun.

The Sun and Moon appear to be the same size when viewed from Earth because:

• the Sun is much farther away from Earth than the Moon, making them appear similar in size.

• the Sun and Moon are actually the same size.

• the Earth's atmosphere magnifies the Moon's size.

• the Sun's light reflects off the Moon, making them appear the same size.

What is the diameter of the Earth?

• 1,392,000 km

• 12,756 km

• 3,500 km

How far is the Earth from the Moon?

• The Earth is 384,000 km from the Moon.

• The Earth is 150,000 km from the Moon.

• The Earth is 1,000,000 km from the Moon.

• The Earth is 250,000 km from the Moon.

What is the accepted belief of how the Moon formed?

• The Moon was captured by Earth's gravity.

• The Moon formed from debris after a collision between Earth and a Mars-sized body.

• The Moon was formed alongside Earth from the primordial accretion disk.

• The Moon is a fragment that broke off from Earth.

What is the diameter of the Moon?

• The Moon has a diameter of 3,474 km.

• The Moon has a diameter of 3,500 km.

• The Moon has a diameter of 3,600 km.

• The Moon has a diameter of 3,700 km.

How often does the Earth rotate?

• Every 24 hours

• Every 35 days

• Every 27.3 days

What causes day and night on Earth?

• The Earth's rotation on its axis

• The Earth's revolution around the Sun

• The Moon's phases

• The Sun's movement across the sky