QUIZ 1. What is one thing that defines a body that is not in equilibrium? a. A body having acceleration b. A body having velocity c. A body having mass d. A body having potential energy Answer: a. Any body having acceleration is not in equilibrium; however, a body having velocity, mass, and potential energy may still be in equilibrium. 2. What least affects the torque on an object? a. The force applied b. The direction of the force c. The starting angle of the object d. The radius from the axis at the center of the object Answer: c. Torque will depend on the radius from the axis, on the force magnitude and on the direction of the force but not necessarily on the starting angle of the object. Torque involves force that causes rotation of an object on an axis. 3. The pivot point in a diagram is to the far left and the force is pushing upward on the right. What is the direction of torque? a. It is tangential to the direction of rotation. b. It is toward the center of the axis. c. It is counterclockwise. d. It is clockwise. Answer: c. The only two choices for torque are clockwise and counterclockwise. In the case described, the torque applied is going to be counterclockwise.
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