GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mass
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Weight
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Acceleration
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Density
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Detailed explanation-1: -Assertion : Gravitational force exerted on a body is weight . Reason : Acceleration due to gravity for Earth is 9.8ms−2 .
Detailed explanation-2: -On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth’s mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects. At Earth’s surface the acceleration of gravity is about 9.8 metres (32 feet) per second per second.
Detailed explanation-3: -Recall that the gravitational force exerted by the Earth on an object is called the object’s weight (or more precisely, its Earth weight). If an object of mass m is on the surface of the Earth (mean sea level), then the magnitude of its weight is mg, where g is the acceleration due to gravity at the Earth’s surface.
Detailed explanation-4: -The attraction force exerted by the earth on any object is called or is termed as gravity.