Kinesiology, 10/e

Nancy Hamilton, University of Northern Iowa
Kathryn Luttgens, Northeastern University

The Conditions of Rotary Motion

True-False Quiz

Please answer the following questions


1	The turning effect of an eccentric force is called torque.
		A)	True
		B)	False


2	The sum of two or more torques may result in only linear motion.
		A)	True
		B)	False


3	When the sum of counterclockwise torques equals the sum of clockwise torques, no turning will occur.
		A)	True
		B)	False


4	A rigid bar that can rotate about a fixed point when a force is applied to overcome resistance is called a lever.
		A)	True
		B)	False


5	The portion of the lever between the fulcrum and the force points is commonly referred to as the lever arm.
		A)	True
		B)	False


6	The principle of levers states that a lever of any class will balance when the product of the effort and the effort arm equals the product of the resistance and the resistance arm.
		A)	True
		B)	False


7	The total angular momentum of a rotating body will not remain constant unless it is acted upon by external torques.
		A)	True
		B)	False


8	For every torque exerted by one body on a second body, there is another torque equal in magnitude and opposite in direction exerted by the second body on the first.
		A)	True
		B)	False


9	Angular momentum can be transferred or converted into linear momentum.
		A)	True
		B)	False


10	In the absence of any outside torque, an object undergoing rotary motion will slowly stop.
		A)	True
		B)	False

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