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Which simple machine increases the distance over which a load travels and reduces the needed force?
wheel and axle, lever
when it changes directions
pulley
it increases the force applied to the can
inclined plane
the car that is behind all the others
force and distance
the mass of the object and the height of the shelf
When does an object have the least amount of kinetic energy?
wheel and axle, lever
when it changes directions
pulley
it increases the force applied to the can
inclined plane
the car that is behind all the others
force and distance
the mass of the object and the height of the shelf
Which car in a race has the lowest average speed?
wheel and axle, lever
when it changes directions
pulley
it increases the force applied to the can
inclined plane
the car that is behind all the others
force and distance
the mass of the object and the height of the shelf
The amount of work done on an object is obtained by multiplying
wheel and axle, lever
when it changes directions
pulley
it increases the force applied to the can
inclined plane
the car that is behind all the others
force and distance
the mass of the object and the height of the shelf
Which simple machines are used to form a wheelbarrow?
wheel and axle, lever
when it changes directions
pulley
it increases the force applied to the can
inclined plane
the car that is behind all the others
force and distance
the mass of the object and the height of the shelf
How does a can opener make it easier to open a can?
wheel and axle, lever
when it changes directions
pulley
it increases the force applied to the can
inclined plane
the car that is behind all the others
force and distance
the mass of the object and the height of the shelf
What information is needed to estimate the amount of potential energy of an object on a shelf?
wheel and axle, lever
when it changes directions
pulley
it increases the force applied to the can
inclined plane
the car that is behind all the others
force and distance
the mass of the object and the height of the shelf
Which simple machine is most efficient for lifting objects high off the ground?
wheel and axle, lever
when it changes directions
pulley
it increases the force applied to the can
inclined plane
the car that is behind all the others
force and distance
the mass of the object and the height of the shelf
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