Centripetal Force and Gravitation Worksheet
Explore the concepts of centripetal force and gravitation through various exercises and problems suitable for Grade 10 Physics students.
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Centripetal Force and Gravitation
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following is the force that keeps an object moving in a circular path?
Centrifugal force
Gravitational force
Centripetal force
Frictional force
2. According to Newton's Law of Universal Gravitation, the force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Which equation represents this law?
F = ma
F = Gm1m2/r
F = Gm1m2/r^2
F = mv^2/r
3. The acceleration directed towards the center of a circular path is called acceleration.
4. The force of gravity decreases as the distance between two objects .
5. An object moving in a circle at a constant speed is not accelerating.
True
False
6. The force of gravity on Earth is constant everywhere on its surface.
True
False
7. Explain the difference between centripetal force and centrifugal force.
8. Describe how the mass of two objects and the distance between them affect the gravitational force between them.
9. A 0.5 kg ball is swung in a horizontal circle with a radius of 0.8 meters at a speed of 4 m/s. Calculate the centripetal force acting on the ball.
Formula: Fc = mv²/r
10. Two objects, one with a mass of 10 kg and the other with a mass of 20 kg, are separated by a distance of 5 meters. Calculate the gravitational force between them. (G = 6.67 × 10⁻¹¹ N·m²/kg²)
Formula: Fg = Gm1m2/r²
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