GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE
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FALSE
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Either A or B
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None of the above
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Detailed explanation-1: -12) Susan jumps off a chair. As she is falling, the Earth’s gravitational force on her is higher than her gravitational force on the Earth. 13) An astronaut orbits the Earth 500 miles above its surface. She appears to be weightless because there is virtually no gravitational force on her.
Detailed explanation-2: -Gravitational force is an attraction between masses. The greater the size of the masses, the greater the size of the gravitational force (also called the gravity force).
Detailed explanation-3: -According to theory, the reason mass is proportional to gravity is because everything with mass emits tiny particles called gravitons. These gravitons are responsible for gravitational attraction. The more mass, the more gravitons.
Detailed explanation-4: -Jupiter. As the largest planet in the Solar System, Jupiter exerts the greatest gravitational pull of all the planets in our neighborhood.
Detailed explanation-5: -The answer is yes. The gravitational force acts on both cases. Both are under the influence of Earth’s gravity. The force of gravity will act on the person falling off a cliff as well as on the astronaut inside an orbiting space shuttle.