Centripetal Force and Gravitation Worksheet
This worksheet covers key concepts in centripetal force and gravitation, including calculations and theoretical understanding relevant for Grade 11 Physics.
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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 questions.
1. Which of the following is the primary cause of centripetal force in a car turning a corner?
Gravity
Friction between tires and road
Engine power
Air resistance
2. According to Newton's Law of Universal Gravitation, if the distance between two objects doubles, the gravitational force between them will:
Double
Halve
Quarter
Quadruple
3. Centripetal force is always directed towards the of the circular path.
4. The formula for gravitational force between two objects is F = G * (m1 * m2) / r^2, where G is the gravitational constant.
5. A 0.5 kg ball is swung in a horizontal circle of radius 0.8 m at a speed of 4 m/s. Calculate the centripetal force acting on the ball.
6. Explain the difference between centripetal force and centrifugal force.
7. An object moving in a circular path at a constant speed has no acceleration.
True
False
8. The strength of the gravitational force depends on the mass of the objects and the distance between their centers.
True
False
Match the term on the left with its definition on the right.
9. Centripetal Acceleration
a. The force that keeps an object moving in a circle.
10. Universal Gravitational Constant
b. The acceleration directed towards the center of a circular path.
11. Gravitational Field
c. A region of space where a mass experiences a gravitational force.
12. Centripetal Force
d. The constant 'G' in Newton's Law of Universal Gravitation.
13. Two satellites of masses 1500 kg and 2000 kg are separated by a distance of 100 km. Calculate the gravitational force between them. (G = 6.67 × 10^-11 N m^2/kg^2)