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Quick Revision: Force and Pressure Video Lecture | Science Class 8

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FAQs on Quick Revision: Force and Pressure Video Lecture - Science Class 8

1. What is force?
Ans. Force is a push or pull acting on an object due to its interaction with another object. It can change the object's speed, direction, or shape.
2. What are the different types of forces?
Ans. The different types of forces include gravitational force, frictional force, magnetic force, electrostatic force, and applied force.
3. How is pressure related to force?
Ans. Pressure is the amount of force applied per unit area. It is directly proportional to the force applied and inversely proportional to the area over which the force is distributed.
4. How can one calculate pressure?
Ans. Pressure can be calculated by dividing the force applied on an object by the area over which the force is distributed. The formula for pressure is Pressure = Force/Area.
5. How does pressure affect objects in fluids?
Ans. In fluids, pressure increases with depth due to the weight of the fluid above. This is known as hydrostatic pressure and can impact the buoyancy of objects in the fluid.
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