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Question 11.Which of the following is NOT an example of torque in the real-world?
Question 22.A spinning top is spun at an angular velocity of 3 radians per second, by applying a torque of 10 newton-meters. How much power is being transferred to the spinning top?
Question 33.Which of the following is the rotational version of Newton's 1st Law?
Question 44.A spinning top is spun at 720 degrees in five seconds, by applying a torque of 10 newton-meters. How much power is being transferred to the spinning top? Note: 180 degrees is equal to pi (3.14) radians.
Question 55.Instead of mass (used in translational motion), what do we use in the equation for rotational kinetic energy instead?
Question 66.If it wasn't for friction or air resistance, what would happen to a spinning top?
Question 77.What happens when an ice-skater moves in her arms?
Question 88.Which of the following is NOT a rotational quantity used in physics?
Question 99.If you hold a stack of heavy books for 10 minutes, are you doing work, and why?
Question 1010.Which of the following is a correct definition of rotational motion?
Question 1111.What is the definition of angular velocity?
Question 1212.An spinning top with uniform mass distribution is rotating around its axis at a rate of three rotations every six seconds. If the moment of inertia of the object is 2 kg m^2, how much rotational kinetic energy does the spinning top contain?
Question 1313.Which of the following is a correct definition of torque?
Question 1414.A merry-go-round is pushed with a torque of 500 newton-meters, around an angle of 2-pi radians. How much work is done in this process?
Question 1515.A mass of 3 kilograms, and a mass of 6 kilograms are placed at different points on a seesaw until they balance perfectly. If the 3 kilogram mass is 0.5 meters from the pivot point, how far away is the 6 kilogram mass?
Question 1616.Why is it easier to open a door by pushing a long way from the hinge?
Question 1717.Why are light bulbs measured in watts (power) instead of joules (work)?
Question 1818.If a force of 10 newtons is applied at a distance of 5 meters from a pivot point, what torque does this produce?
Question 1919.How do we know that rotating objects have kinetic energy?
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