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10 questions
Work is done when
a force acts on an object.
a force acts on an object and the object moves in the same direction.
the mass of an object changes.
the velocity of an object changes.
True or False: Work can be done on an object without motion .
True
False
When work is done, and object must move in the _________ direction as the force applied.
same
opposite
perpendicular
Work done equals
force x distance.
force x mass.
force/distance.
Forces are measured in _____________, and distances are measured in ________________.
pounds, miles
ounces, feet
newtons, meters
joules, meters
The SI units for work are Nm or
joules.
newtons.
meters.
kilograms.
Power equals the amount of ___________ done per unit of ____________.
force, distance.
work, time.
kilometers, hour
True or False: Greater power reduces the amount of work done.
True
False
Power equals
work/time.
newtons/meters.
time/work.
work x time.
The SI units for power are J/s or the
newton.
joule.
watt.
m/s.
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