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प्रश्न
Answer the following in detail.
Differentiate between mass and weight of an object.
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उत्तर
Difference between mass and weight Mass and weight mean completely different things in physics. The amount of matter that an object contains constitutes its mass. The gravitational force acting on this mass is called the weight of the object.
Mass of an object always remains the same, while the weight of the object varies when it is subjected to different gravitational forces. For example, the weight of an astronaut on the earth is six times her/his weight on the moon as the gravitational force of the earth is six times more than the gravitational force of the moon. But the body mass of the astronaut remains the same in both places
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संबंधित प्रश्न
Select the correct alternative.
Friction
What effect can a force have on a stationary body?
Name the type of force which act in the following case:
A bicycle comes to rest slowly when the cyclist stops pedaling
Name the type of force which act in the following case:
A stone falls from a roof
In which case will there be more friction between the truck and the road: when the truck is empty or when it is loaded?
Which offers more friction on a body: a glass surface or a wooden surface?
Answer the following.
Define weight.
Identify the agent exerting the force, the object on which the force is acting and the effect of the force in the following situation
Taking out ointment from a medicinal tube.
What is momentum? Write its SI unit. Interpret force in terms of momentum. Represent the following graphically
(a) momentum versus velocity when mass is fixed.
(b) momentum versus mass when velocity is constant.
Two objects repel each other. This repulsion could be due to
