Question

1. what happens to the weight of objects on the moon?

a. they become twice as heavy
b. they remain the same weight
c. they become six times lighter
d. they become weightless

1. what is the sequence of moon phases in order?

a. full, new, first quarter, third quarter
b. new, first quarter, full, third quarter
c. first quarter, full, third quarter, new
d. third quarter, new, first quarter, full

1. how do moonquakes differ from earthquakes?

a. they are more frequent
b. they are less intense
c. they only occur during full moons
d. they travel in opposite directions

1. what allows the moon to reflect so much sunlight?

a. its metallic surface
b. its lack of atmosphere and reflective rocks
c. its proximity to the sun
d. its magnetic field

1. why did scientists leave seismic detectors on the moon?

a. to measure temperature changes
b. to detect moonquakes
c. to track meteor impacts
d. to study lunar dust

1. what happens during a lunar eclipse?

a. the moon blocks the sun
b. the earths shadow falls on the moon
c. the moon disappears completely
d. the moon turns blue

Explanation:

1. The gravitational acceleration on the Moon is about one - sixth of that on Earth, so objects are six times lighter on the Moon.
2. The correct sequence of Moon phases is new moon, first - quarter moon, full moon, third - quarter moon.
3. Moonquakes are less intense than earthquakes.
4. The Moon's lack of atmosphere and presence of reflective rocks allow it to reflect a significant amount of sunlight.
5. Seismic detectors on the Moon were left to detect moonquakes.
6. During a lunar eclipse, the Earth's shadow falls on the Moon.

Answer:

1. c. They become six times lighter
2. b. New, first quarter, full, third quarter
3. b. They are less intense
4. b. Its lack of atmosphere and reflective rocks
5. b. To detect moonquakes
6. b. The Earth's shadow falls on the Moon