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12 questions
Which of Newton's laws states that an object at rest stays at rest unless acted upon by a net external force?
True or False: According to the conservation of momentum, the total momentum of a closed system remains constant if no external forces act on it.
What is the formula to calculate work done when a force is applied at an angle to the displacement?
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If two rotating objects have different moments of inertia but the same angular velocity, which one has the greater rotational kinetic energy?
True or False: Power is the rate at which work is done or energy is transferred.
Explain how simple harmonic motion can be described by Hooke’s Law in the context of a mass-spring system.
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A cart of mass 2 kg moving at 3 m/s collides elastically with a stationary cart of mass 1 kg. What is the velocity of the 2 kg cart after the collision?
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True or False: Newton's third law states that for every action, there is an equal and opposite reaction.
Which quantity remains conserved during a perfectly inelastic collision?
Which of the following statements about kinetic energy is true?
True or False: The mechanical energy of a system is always conserved in the absence of non-conservative forces.
Describe how the principle of conservation of angular momentum applies to a figure skater as they pull in their arms.
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