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WorksheetsWork and Power Review
Total questions: 15
Worksheet time: 20mins
What is work?
the transfer of energy that occurs when a force moves an object
the amount of work done over a certain amount of time
the amount of power done over a certain amount of time
the transfer of force that occurs when energy moves an object
Work transfers
sweat
energy
velocity
effort
Which is the correct unit for work?
Work (W)
Newton (N)
Watt (W)
Joules (J)
Which statements are examples of work being done?
walking up a flight of stairs
a waitress carrying a tray of food through a restaurant
a book resting on a table
throwing a baseball
What are the two requirements needed for work to be done?
The object must move in the opposite direction of the force
The applied force must make the object move
The object cannot move for work to occur
The movement must be in the same direction as the force
What is the unit for power?
Joules (J)
seconds (s)
Watts (W)
Newtons (N)
What is power?
The amount of work done over a certain amount of time
The transfer of energy that occurs when a force moves an object
A push or pull that changes the motion of an object
The capacity to do work
Which is the correct equation for work?
W = F/d
W = F x d
W = F / t
W = F x t
Which is the correct equation for power?
P = W x t
P = F x d
P = W/t
P = F/d
What will happen to the Work done on an object if the force and distance stay the same, but the time decreases?
work will increase
work will decrease
work will stay the same
How could Power be increased?
increase the force
increase the time
decrease the distance
decrease the time
Determine the work done by Lamar in deadlifting 300 kg to a height of 0.90 m above the ground.
270 J
333.33 J
2646 J
3266.67 J
A conveyor system exerts a force of 890 N to push large crates a distance of 12 meters in 22 seconds. Determine the power output.
485.45 W
1631.6 W
4757.45 W
10680 W
A conveyor system exerts a force of 890 N to push large crates a distance of 12 meters in 22 seconds. Determine the work output.
485.45 J
1631.6 J
4757.45 J
10680 J
