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