Quiz about Earth Moon Sun

Question 1

How does light travel?

Accepted Answer

Light travels in straight lines only.

Answer

Light travels like a river, wherever there is an open path.

Answer

Light travels in unpredictable ways.

Answer

It depends; if the light is bright enough it can change direction.

Question 2

Your classmate said that light bent around a corner to reach an object. Is this possible?

Accepted Answer

No, light travels in straight lines only.

Answer

Yes, light travels like a river, wherever there is an open path.

Answer

Maybe; light travels in unpredictable ways.

Answer

Yes, if the light is bright enough, then it can change direction to go around corners.

Question 3

VOCAB ALERT! What is the definition of MOON?

Accepted Answer

a rocky sphere that travels around a planet

Answer

to shine light on an object and make it visible

Answer

the star that is the main source of light at the center of our solar system

Answer

the border between light and dark on the Moon

Question 4

VOCAB ALERT! What is the definition of ILLUMINATE?

Accepted Answer

to shine light on an object and make it visible

Answer

a rocky sphere that travels around a planet

Answer

the star that is the main source of light at the center of our solar system

Answer

the border between light and dark on the Moon

Question 5

VOCAB ALERT! What is the definition of SUN?

Accepted Answer

the star that is the main source of light at the center of our solar system

Answer

a rocky sphere that travels around a planet

Answer

to shine light on an object and make it visible

Answer

the border between light and dark on the Moon

Question 6

VOCAB ALERT! What is the definition of TERMINATOR?

Accepted Answer

the border between light and dark on the Moon

Answer

a rocky sphere that travels around a planet

Answer

to shine light on an object and make it visible

Answer

the star that is the main source of light at the center of our solar system

Question 7

The Moon does not make its own light. The sun illuminates the Moon.

Accepted Answer

TRUE

Answer

FALSE

Question 8

The sun illuminates the entire Moon so that no part of it is ever dark.

Accepted Answer

FALSE

Answer

TRUE

Question 9

Light from the sun travels in unpredictable ways because there are so many objects in space.

Accepted Answer

FALSE

Answer

TRUE

Question 10

VOCAB ALERT! What is the definition of MOON PHASE?

Accepted Answer

the shape of the illuminated part of the Moon as it appears from Earth

Answer

the nearly circular path a smaller object travels around a larger object

Answer

something we observe to be similar over and over again

Answer

the border between light and dark on the Moon

Question 11

VOCAB ALERT! What is the definition of PATTERN?

Accepted Answer

something we observe to be similar over and over again

Answer

the nearly circular path a smaller object travels around a larger object

Answer

the shape of the illuminated part of the Moon as it appears from Earth

Answer

the border between light and dark on the Moon

Question 12

VOCAB ALERT! What is the definition of ORBIT?

Accepted Answer

the nearly circular path a smaller object travels around a larger object

Answer

the shape of the illuminated part of the Moon as it appears from Earth

Answer

something we observe to be similar over and over again

Answer

the border between light and dark on the Moon

Question 13

We see different phases of the Moon because the sun's light changes throughout each month.

Accepted Answer

FALSE

Answer

TRUE

Question 14

The diagrams above show Earth and the Moon in different positions, as seen from above. Sunlight is coming from the left but Moon is dark in all of them. Could the half of the Moon that faces Earth ever be completely dark in any of these diagrams? Remember what causes a lunar eclipse!

Accepted Answer

Yes, the Moon is always completely dark in Diagram 2 and sometimes could be dark in Diagram 3.

Answer

No, the Moon is always lit by the sun.

Answer

Yes, the Moon is always be completely dark in Diagrams 2 and 3, but never in Diagram 1.

Answer

Yes, the Moon is always completely dark in Diagram 1, but never in Diagrams 2 or 3.

Question 15

Three student astronomers made the diagrams above to show what they think the Moon looks like when it is seen from above (top view). In these diagrams, the sunlight is coming from the left, as shown by the arrows. Which diagram is accurate and why?

Accepted Answer

Diagram B is accurate because the half of the Moon that is facing the sun is lit by the sun, and the other half is dark.

Answer

Diagram A is accurate because the Moon is almost as far as it can be from the sun, so almost none of the Moon is lit by the sun.

Answer

Diagram C is accurate because the whole Moon is bright as long as there are no shadows covering parts of it.

Answer

All three diagrams are sometimes accurate.

Question 16

The diagrams above show Earth and the Moon in different positions, as seen from above (top view). Sunlight is coming from the left, but these diagrams do not show what parts of Earth or the Moon are light or dark. Could the half of the Moon that faces Earth ever be completely dark in any of these diagrams?

Accepted Answer

Yes, always in Diagram 3 and sometimes in Diagram 1.

Answer

No, the Moon is always lit by the sun.

Answer

Yes, always in Diagrams 1 and 3, but never in Diagram 2.

Answer

Yes, always in Diagram 3, but never in Diagrams 1 or 2.

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