Rotational Kinetic Energy Worksheet
Explore the concepts of rotational kinetic energy, moment of inertia, and angular velocity with this grade 10 physics worksheet.
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Rotational Kinetic Energy
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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 best defines rotational kinetic energy?
Energy due to an object's linear motion.
Energy stored in an object due to its position.
Energy an object possesses due to its rotation.
Energy associated with the vibration of particles.
2. The moment of inertia of an object depends on its:
Linear velocity and mass.
Mass distribution and shape.
Temperature and pressure.
Volume and density.
3. The formula for rotational kinetic energy is KE_rot = .
4. Moment of inertia is the rotational analogue of in linear motion.
5. Angular velocity is typically measured in per second.
6. A solid disk with a mass of 2 kg and a radius of 0.5 m rotates at an angular velocity of 4 rad/s. Calculate its rotational kinetic energy. (Moment of inertia for a solid disk I = ½MR²)
7. Explain the difference between linear kinetic energy and rotational kinetic energy.
8. A larger moment of inertia always means a higher rotational kinetic energy.
True
False
9. A flywheel stores energy primarily as rotational kinetic energy.
True
False
10. Observe the image of the flywheel below. If this flywheel has a mass of 5 kg and its effective radius of gyration is 0.3 m, what is its moment of inertia?
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