Moon and Its Different Phases

Q.

What is a crescent moon?

1. Small portion of Moon visible in the sky on the day before full moon day.

2. Small portion of Moon visible in the sky on the day after full moon day.

3. Small portion of Moon visible in the sky on the day before or after new moon day.

4. Small portion of Moon visible in the sky on any day.

Q.

What Are the Festivals Related to the Moon?

Q. What is the approximate time duration between a full moon and a new moon?

1. 10 days
2. 14 days
3. 30 days
4. 1 day

Q.

Why are we able to see only one side of the Moon?

1. Because rotation of the earth and the moon on their own axes take equal time

2. Beacuse rotation of the moon on its own axis and its revolution around the earth take equal time

3. Due to reflection of the sunlight

4. Both A and C

Q. After a new moon day, the visible part of the moon

1. remains same for a week
2. may increase or decrease
3. becomes thinner
4. grows in size

Q. Wind blows faster on the Moon than on Earth.

1. True
2. False

Q. The phases of the moon cannot be seen from certain parts of the Earth.

1. True
2. False

Q.

1. Match the following:

Column 1	Column 2
Troposphere	Jet planes fly here
Stratosphere	No air in this region
Mesosphere	Man-made satellites orbit here
Thermosphere	Insufficient air to breathe here
Exosphere	Clouds form here

Q. How long does it take for the Moon to revolve around the Earth?

1. 1 week
2. 6 weeks
3. 15 days
4. 28 days

Q. Wind blows faster on the Moon than on Earth.

1. True
2. False

Q.

2 A weather cock indicates the presence of air. How?

Q.

Question 3

Phases of the moon occur because

(a) we can see only that part of the moon which reflects light towards us.

(b) our distance from the moon keeps changing.

(c) the shadow of the Earth covers only a part of moon’s surface.

(d) the thickness of the moon’s atmosphere is not constant.

Q. Moon is a celestial object.

1. True
2. False

Q.

What is caused when the Moon moves into the Earth's shadow?

1. Solar eclipse

2. Shadowing

3. Shadowplay

4. Lunar eclipse

Q.

The size of moon _________ after new moon.

1. increases

2. decreases

3. remains same

4. can't say

Q. The full moon night is called:

1. Purnima
2. Amavasya
3. Both (A) and (B)
4. None of them

Q. What happens to the moon after full moon day?

Q. What is the approximate time duration between a full moon and a new moon?

1. 10 days
2. 14 days
3. 30 days
4. 1 day

Q.

1. Eemains the same
2. Decreases
3. Increases
4. Either increases or decreases

Q. (a) Explain why we always see the same side of the moon.
(b) Why does the moon change its shape daily?
(c) Suppose the moon emits light of its own. Would it still have phases? Justify your answer.
[4 marks]
[Exemplar]
[Moon, Phases of moon]

Q. What occurs $15$ days after the full moon day?

1. Half moon day
2. Crescent moon day
3. New moon day
4. None of the above

Q. At what phase are the earth, moon and sun are in approximate alignment?

1. Full Moon
2. New Moon
3. Waning Crescent
4. Waxing Crescent

Q.

The Moon is a _____ of Earth.

1. planet

2. asteroid

3. galaxy

4. satellite

Q.

If the Earth and Moon are in a line with the Sun, then what phase of the Moon can we see on Earth?

1. Full moon only.

2. New moon only.

3. Crescent moon.

4. Either full or new moon.

Q.

By how many degrees the position of the moon changes per day?

1. 13.2 degrees

2. 17.2 degrees

3. 19.2 degrees

4. 15.2 degrees

Q. 'The length of its day and the tilt of its axis are almost identical to those of the earth.' This is true of ____________.

1. Uranus
2. Neptune
3. Saturn
4. Mars

Q. Moon's phase cycle repeats on an average of ______ days.

1. $365$
2. $120$
3. $15$
4. $30$

Q. ................................moon appears after the waxing crescent.

1. Waxing Gibbous
2. First Quarter
3. Third Quater
4. New moon

Q. After a new moon day, the visible part of the moon

1. becomes thinner
2. grows in size
3. remains same for a week
4. may increase or decrease

Q.

The time taken by the moon to move ___ of its path of revolution is one asterism.

1. Summer

2. Winter

3. Autumn

4. Spring