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WorksheetsSimple Machines, Work, and Power
Total questions: 20
Worksheet time: 10mins
Newtons are the correct unit for which of the following?
Force
Work
Power
Acceleration
Which is the correct unit for work?
Joules
Newton
meter
Watts
What is the correct unit for power?
Watt
Joules
Newtons
seconds
It took 500 Newtons of force to push a car four meters. How much work was done?
2000 J
125 J
0.008 J
500 J
What is the power of a kitchen blender if it can perform 3,750 Joules of work in 15 seconds?
250 W
0.004 W
56,250 W
25 W
How much power is used if a force of 35 Newtons is used to push a box a distance of 10 meters in five seconds? (Hint: Solve for work first. This is a 2-step problem.)
70 W
3.5 W
7 W
350 J
Match these units
J/s or Watts
Work
Newtons
Power
meters
Force
Joules
Distance
Match the formulas
mass × acceleration
Power
force * distance
Work
work/time
Speed
distance/time
Force
Work is done when which two things happen?
an object is moved
power is converted into Newtons
an object has been subjected to force (unbalanced)
an object stays in place
A simple machine is
a device that makes work harder
a device that makes work easier
an energy that makes work easier
a energy that makes work harder
The purpose of a simple machine is-
to change the effort needed (mechanical advantage)
to change the direction or distance through which the force is applied
to change the speed at which the resistance moves
all of these
Match these simple machines
Pulley
Wedge
Lever
inclined plane
Match these compound machines with their parts
Wedges, levers
Wheel and axles, pulley, levers
Wedge, pulley, levers
wedge
inclined plane
Wheel and axle
screw
lever
Identify the simple machine in the picture.
Lever
Inclined plane
Wheel and axle
Screw
A crane would be an example of which type of simple machine?
Wedge
Wheel and axle
Pulley
Lever
Compound machines consist of two or more simple machines combined together to make work easier and increase the mechanical advantage. What two simple machines are used in a wheelbarrow?
Wheel/ axle and a lever
Lever and a wedge
Wheel/ axle and a screw
Inclined plane and a lever
