Rotation and Revolution of the Moon

Q.

What is the meaning of mass of an object

Q. Mass of the Moon is ___ the mass of Earth.

1. less than 2% of
2. twice
3. half of
4. 10% of

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. Explain the cause for different phases of the Moon.

Q.

The mass of an object is 6 kg on earth. On the moon the mass would be

1. Kg

2. m³/kg

3. Unitless, it has no unit

4. Kg/m²

Q.

The moon produces more light than the Sun. State True/False.

1. False

2. True

Q.

What will be the weight of the body on the moon whose mass is 12 kg?

Q.

If the earth and the moon are in line with the sun, then what phase of the moon can we see on the earth?

1. Full moon

2. Crescent moon

3. New moon

4. Either full or new moon

Q. Calculate the weight of an astronaut whose mass is 80kg on the surface of the earth and on the surface of moon. Given that acceleration due to gravity at moon is 1/6 weight on Earth?

Q.

If the Earth and Moon move in the same plane around the Sun, then what phase of the Moon can we see on Earth?

1. full moon

2. new moon

3. crescent moon

4. Either full or new moon

Q.

In the given figure at what position of the Moon will we see a New Moon from the Earth?

1. B, D

2. C

3. B

4. A

Q.

The phases of Moon occur because of

1. the moon reflects the sunlight falling on its surface

2. the moon can emit its own light

3. the moon revolves around the earth

4. the size of the moon is very small

Q. What is the weight of a 700kg body on a planet whose mass is 1/7th of that of the earth and radius is 1/2 times that of the earth?

Q. What percentage of sunlight does the surface of the Moon reflects?

1. Less than 10%
2. 70%
3. More than 90%
4. 50%

Q.

The moon appears largest in size on the new moon day.

1. False

2. True

Q. What kind of surface moon has? So when moon reflects light falling on it from sun,
is the reflection diffused or regular?

Q.

The Moon appears biggest in size on a new Moon day.

1. True

2. False

Q.

A physical text book has a mass of 2.2 kg.

a) what is the wieght on earth ?

b) What is the weight on Mars (g=3.7 m/s2)

c) If the text book wieghts 19.6 newtons on venus, what is the strenght of gravity on venus?

Q.

When does the moon become half lit during the waning phase?

1. Second quarter

2. Third quarter

3. Fourth quarter

4. First quarter

Q. What is the approximate time taken by the Moon to complete one revolution around the Earth?

1. 24 days
2. 12 days
3. 15 days
4. 27 days

Q.

The weight of any object is 19.6 N. What is its mass in Kg?