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JSS1: BASIC SCIENCE - 3RD TERM

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Topic Content:

  • Meaning of Gravitational Force / Weight
  • Meaning of Gravity
  • Meaning of Mass
  • Spring Balance
  • Mass Vs. Weight
  • Worked Examples

What is Gravitational Force / Weight?

The weight of a body is defined as the force acting on a body due to acceleration or gravity. Therefore, the weight of a body is a measure of gravitational force on that body. The SI unit of gravitational force/weight is Newton (N).

Gravitational pull causes objects to have weight, and fall back to the earth when thrown up and it is what makes an object feel very heavy.

What is Gravity?

Gravity is the force by which a planet or other body draws objects toward its centre. It is measured by the acceleration that it gives to freely falling objects. Its SI unit is m/s2 or ms-2.

 

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