Understanding Phases of Moon

Q.

Moon is a natural source of light.

1. True
2. False

Q. Question 17

Why does the moon change its shape daily?

Q. The day on which the moon appears as a circular disc is known as the.

1. full moon day
2. new moon day
3. eclipse
4. lunar day

Q.

Statement 1: The shape of the Moon changes every day, and the various shapes seen during a month are called the phases of the Moon.

Statement 2: The Moon has no light of its own. We see only the part of the moon which reflects the light of the Sun towards us.

Which of the following options is correct?

1. Both the statements are false.
2. Both the statements are true.
3. Only the statement 1 is true.
4. Only the statement 2 is true.

Q.

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 the moon's surface.

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

Q. Phases of moon are observed because:

1. Sunlight reflected by some parts of moon reaches the earth
2. The moon does not reflect sunlight
3. Shadow of earth falls on the moon
4. Only some parts of the moon can emit light

Q.

Moonlight is spread out when it is reflected by the lake so that the image of moon is not clear as it is with a mirror. Explain this phenomenon? [3 MARKS]

Q. How many days would pass from a New Moon phase to a Full Moon phase?

1. $21$
2. $28$
3. $7$
4. $14$

Q.

How can we see new moon from the earth where it is night when it is on the opposite side of dark part of earth

Q.

During a ___eclipse, the moon is situated between the earth and the sun.

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

1. True
2. False

Q.

What is a crescent moon?

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

2. Small portion of Moon visible in the sky on the day before 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. Will the moon have phases if it was luminous?

Q. The Moon rotates on its own axis as it revolves around the Earth. How many rotations does it make for one revolution?

1. 7
2. 30
3. 1
4. 28

Q. The moon is a natural source of light. State whether true or false.

1. True
2. False

Q. During the Full Moon phase, what is the configuration of Moon, Earth, and Sun?

1. Moon is between Earth and Sun.
2. Earth is between Moon and Sun.
3. Sun is between Earth and Moon.
4. They are not in a straight line.

Q. $1$ rotation on its axis of Moon equals ______ revolutions of Moon around the Earth.

1. $30$
2. $1$
3. $365$
4. $7$

Q. It takes approximately 27 days for the Moon to complete one revolution around Earth.

1. False
2. True

Q. Give reasons for the following : Lunar eclipse is a more frequent phonomenon than solar eclipse

Q. In which of the following phases of Moon we can see the entire half of the moon surface that is lit?

1. Full Moon
2. New Moon
3. Waning Gibbous
4. Last Quarter

Q. What is the dark side of the moon. Explain this phenomenon. [5 MARKS]

Q.

suppose the moon emits light of its own .Would it still have phases

Q. What causes the Lunar phases?

1. The revolution of the Moon around the Earth
2. The change in the distance of the Moon from the Earth
3. The low gravity on the Moon
4. The absence of atmosphere on the Moon

Q. A space rock is at an average distance of 40 AU from the earth, which is equal to light years.

1. $5.8\times {10}^{-4}$
2. $6.32\times {10}^{-4}$
3. $3.72\times {10}^{-5}$

Q. During a New moon phase, what is the configuration of Moon, Earth, and Sun?

1. Earth is between Moon and Earth.
2. Moon is between Earth and Sun.
3. They are not in a straight line.
4. Sun is between Moon and Earth.

Q.

The moon is a natural source of light.

1. True
2. False

Q. A waxing crescent moon

1. is a phase where the crescent decreases from one day to another
2. is a phase where in the next day to the crescent is a new moon day
3. is a phase where the crescent increases from one day to another
4. is a phase where in the next day to the crescent is a full moon day

Q.

Question 11

John saw full moon on a particular day. After how many days will he be able to see the full moon again?

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. crescent moon

2. full moon

3. new moon

4. Either full or new moon

Q. Which lunar phase occurs, if the Sun and the Moon are on the same side of the Earth?

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