Physics Exam > Physics Videos > Mechanics & General Properties of Matter > Central force - 1
Central force - 1 Video Lecture | Mechanics & General Properties of Matter - Physics
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FAQs on Central force - 1 Video Lecture - Mechanics & General Properties of Matter - Physics
| 1. What is a central force in physics? |  |
Ans. A central force in physics is a type of force that acts on an object in such a way that the force is always directed towards or away from a fixed point called the center. The magnitude of the force depends only on the distance between the object and the center, and not on the direction of motion.
| 2. What are some examples of central forces? | |
Ans. Some examples of central forces include the gravitational force between two objects, the electrostatic force between two charged particles, and the force exerted by a spring when it is stretched or compressed.
| 3. How does a central force affect the motion of an object? | |
Ans. A central force affects the motion of an object by causing it to move in a curved path around the center. The object experiences an acceleration towards or away from the center, which results in a change in its velocity direction. This curved path is often referred to as an orbit or trajectory.
| 4. How is the magnitude of a central force determined? | |
Ans. The magnitude of a central force is determined by Newton's law of gravitation or Coulomb's law, depending on the nature of the force. These laws provide mathematical formulas to calculate the force based on the masses, charges, and distance between the objects involved.
| 5. Can a central force change the speed of an object? | |
Ans. No, a central force alone cannot change the speed of an object. Since the force only affects the direction of motion, the speed of the object remains constant unless acted upon by an additional force. However, the object's speed may change if there are other forces present in addition to the central force.
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Nov 23, 2024 Last updated |
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