GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
A It has less mass on the Moon than on the Earth
|
|
|
B It has more mass on the Moon than on the Earth.
|
|
|
C It weighs less on the Moon than on the Earth.
|
|
|
D It weighs more on the Moon than on the Earth.
|
Detailed explanation-1: -A piece of steel is taken from the Earth to the Moon for an experiment. The gravitational field strength on the Moon is smaller than on the Earth. Which statement about the piece of steel is correct? A It has less mass on the Moon than on the Earth.
Detailed explanation-2: -The Earth’s Moon has considerably less mass than the Earth itself. Not only is the Moon smaller than the Earth, but it is only about 60 percent as dense as Earth. Thus, the gravitational attraction on the Moon is much less than it is here on Earth, and a person weighs less on the Moon.
Detailed explanation-3: -For example, the gravitational field strength of the Moon is 1.6 N/kg. This means that for each kilogram of mass, an object will experience 1.6 N of force. Therefore, an astronaut will weigh less on the Moon than they do on the Earth.
Detailed explanation-4: -The gravitational field strength at the surface of Earth is 9.8 newtons per kilogram. The gravitational field strength of the surface of the Moon is 1.6 newtons per kilogram.
Detailed explanation-5: -Hence, the earth attracts the moon with the same force with which the moon attracts the earth. Q. The earth and the moon are attracted to each other by gravitational force.