The Surface of the Moon

Q.

Two-person talk to each other on the surface of the moon. Will they be able to hear each other?

Q. Question 19
Two astronauts are floating close to each other in space. Can they talk to each other without using any special device? Give reasons.

Q. Sound can be heard on the surface of the moon.

1. False
2. True

Q. Two astronauts are floating close to each other in space. Can they talk to each other without using any special device? Give reasons.

Q. If you speak on the moon, a person standing next to you can hear you.

1. False
2. True

Q.

Sam's father and mother are astronauts. Last month they returned from a tour to the moon. Sam's father told him that they had air filled helmets and it also had microphones, which they used for talking to each other. But his mother was not able to listen to him when they removed their helmets. (Assume they were wearing oxygen masks when they removed their helmets). What is the reason?

1. There was too much noise on the moon

2. There is no air on the moon

3. His father's voice was too low because he got choked due to poisonous gases of the moon

4. Both A & C

Q.

Sam's father and mother are astronauts. Last month they returned from a tour to the moon. Sam's father told him that they had air filled helmets and they also had microphones, which they used for talking to each other. But his mother was not able to listen to him when they removed their helmets. (Assume they were wearing oxygen masks when they removed their helmets). What is the reason?

1. His father's voice was too low because he got choked due to poisonous gases of the moon

2. There is no air on the moon

3. Both A & C

4. There was too much noise on the moon

Q. Sound can be heard on the surface of the moon.

1. True
2. False

Q.

Sam's father and mother are astronauts. Last month they returned from a tour to the Moon. Sam's father told him that they had air filled helmets and they also had microphones, which they used for talking to each other. Why did they use microphones to talk even after they were close enough to hear the sound of each other?

1. There was too much noise on the Moon.

2. There is no air on the Moon.

3. His father's voice got trapped in the helmet.

4. The gravity is too less to support sound propagation

Q.

Synodic month is of ____.

1. $29½$ days from one new moon to the next new moon

2. $30$ days from one new moon to the next new moon

3. $15$ days from one new moon to the next full moon.

4. $27½$ days from one full moon to the next full moon

Q.

Sam's father and mother are astronauts. Last month they returned from a tour to the Moon. Sam's father told him that they had air filled helmets and they also had microphones, which they used for talking to each other. Why did they use microphones to talk even after they were close enough to hear the sound of each other?

1. There was too much noise on the Moon.

2. There is no air on the Moon.

3. His father's voice got trapped in the helmet.

4. The gravity is too less to support sound propagation