Chapter 3 Multiple Choice Quiz 1

Please answer all questions


1	A change in the state of motion is evidence of
		A)	a force.
		B)	an applied force that is unbalanced.
		C)	a force that is wearing down.
		D)	any of these.


2	What do you know for sure about the forces on the system of you and a bicycle as you petal the bike at a constant speed in a straight line?
		A)	The applied force you are exerting on the petal is greater than other forces.
		B)	All forces are in balance.
		C)	The resisting forces of friction are greater than the applied forces.
		D)	Air and tire friction forces are less than the applied force.


3	What property of matter determines the resistance to a change in the state of motion for a given object?
		A)	weight
		B)	density
		C)	mass
		D)	any of these


4	With all other factors equal, if you double the unbalanced force on an object of a given mass the acceleration will be
		A)	doubled.
		B)	increased fourfold.
		C)	increased by one-half.
		D)	increased by one-forth.


5	With all other factors equal, if you double the mass of an object while a constant unbalanced force is applied, the acceleration will be
		A)	doubled.
		B)	increased fourfold.
		C)	one-half as much.
		D)	one-fourth as much.


6	Which of the following is a unit that can be used for a measure of weight?
		A)	kilogram
		B)	newton
		C)	kg ·m/s
		D)	none of these


7	Which of the following is a unit for a measure of resistance to a change of motion?
		A)	lb
		B)	kg
		C)	N
		D)	none of the above


8	The immediate source of the force that accelerates a car over a road comes from
		A)	the engine.
		B)	the tires.
		C)	the road.
		D)	all of these.


9	Doubling the distance between an orbiting satellite and the earth will result in what change in the gravitational attraction between the two?
		A)	one-half as much
		B)	one-fourth as much
		C)	twice as much
		D)	four times as much

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