Earth in Space Pretest

Which of the following is one day on Earth? The time it takes for ___. 

• Earth to orbit the Sun 
• The Sun to orbit Earth 
• Earth to completely rotate around its axis 
• The Sun to completely rotate around its axis 

A planet has a shorter day than Earth does. Which of the following is most likely to explain why? 

• It is closer to the Sun. 
• It has no moon. 
• It takes less time to make a complete revolution around the Sun. 
• It takes less time to make a complete rotation around its axis. 

Which of the following causes the ocean’s tides? 

• Earth’s revolution around the Sun 
• The magnetic field between Earth’s north and south poles 
• The gravitational pull between Earth and the Sun and the Moon 
• Changes in atmospheric pressure 

What percentage of the Moon is lit by the Sun? 

• Always 50%
• Always 75%
• Always 100%
• It depends on the phase

The phases of the Moon are caused by which of the following?

• Earth’s orbit (revolution) around the Sun
• Earth’s rotation around its axis 
• The Moon’s orbit (revolution) around Earth 
• Earth’s shadow falling on the Moon 

Which of the following results from the tilt of Earth? Earth’s tilt causes _______________.

• More daylight in summer than in winter
• A bulge at the equator 
• A longer year every fourth year 
• The phases of the Moon

Changing seasons are caused by which of the following?

• Changes in the Sun’s energy 
• Solar wind patterns 
• The tilt of Earth’s axis 
• The distance from Earth to the Sun 

If Earth revolved more slowly in its orbit around the Sun, which of the following would be likely to result? 

• A longer year
• A longer winter
• A longer average day length
• A longer year and a longer winter 

The spinning of Earth on its axis is called

• Rotation
• Revolution
• Gravity
• Nuclear Fusion 

This occurs when the Moon is between the Sun and Earth and the Moon’s shadow falls on Earth

• Lunar eclipse
• Apogee
• Solar eclipse 
• Perigee