Force And Motion Question Preview (ID: 37293)


Force And Motion. TEACHERS: click here for quick copy question ID numbers.

A force acting on an object does no work if...
a) a machine is used to move the object.
b) the force is not in the direction of the object’s motion.
c) the force is greater than the force of friction.
d) the object accelerates.

What is the speed of a bobsled whose distance/time graph indicates that it traveled 100 m in 25 seconds?
a) 4 m/s
b) 250 m/s
c) 0.25 mph
d) 100 m/s

When you know both the speed and direction of an object’s motion, you know the
a) average speed of the object.
b) acceleration of the object
c) distance the object has traveled.
d) velocity of the object

What is transferred by a force moving an object through a distance?
a) mass
b) energy
c) force
d) motion

One way to increase acceleration is by
a) decreasing force.
b) increasing mass
c) decreasing mass.
d) increasing both force and mass proportionally.

Speed is the ratio of the distance an object moves to
a) the displacement of the object.
b) the motion of the object.
c) the amount of time needed to travel the distance.
d) the direction the object moves.

If you exert a force of 10.0 N to lift a box a distance of 0.75 m, how much work do you do?
a) 75 J
b) 0.075 J
c) 7.5 J
d) 10.75 J

According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail
a) disappears into the wood.
b) exerts an equal force back on the hammer.
c) moves at a constant speed.
d) creates a friction with the hammer.

When a pair of balanced forces acts on an object, the net force that results is
a) greater in size than one of the forces.
b) equal to zero.
c) equal in size to one of the forces.
d) greater in size than both forces combined.

If a bicyclist travels 30 kilometers in two hours, her average speed is _______________.
a) 60 km/h.
b) 2 km/h
c) 30 km/h
d) 15 km/h

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