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How do we use a wheel and axle?
screw
to reduce the force needed to move something
lever
to reduce friction and make it easier to move something
a machine that combines several simple machines and makes dangerous work/tasks easier
to lift heavy objects
the bigger the distance, the greater the force to move it = more work
inclined plane
How do we use a gear?
screw
to reduce the force needed to move something
lever
to reduce friction and make it easier to move something
a machine that combines several simple machines and makes dangerous work/tasks easier
to lift heavy objects
the bigger the distance, the greater the force to move it = more work
inclined plane
What kind of a simple machine would you use to attach a basketball hoop onto a wooden building?
screw
to reduce the force needed to move something
lever
to reduce friction and make it easier to move something
a machine that combines several simple machines and makes dangerous work/tasks easier
to lift heavy objects
the bigger the distance, the greater the force to move it = more work
inclined plane
How are force, distance, and work related?
screw
to reduce the force needed to move something
lever
to reduce friction and make it easier to move something
a machine that combines several simple machines and makes dangerous work/tasks easier
to lift heavy objects
the bigger the distance, the greater the force to move it = more work
inclined plane
What is a complex machine?
screw
to reduce the force needed to move something
lever
to reduce friction and make it easier to move something
a machine that combines several simple machines and makes dangerous work/tasks easier
to lift heavy objects
the bigger the distance, the greater the force to move it = more work
inclined plane
What kind of a simple machine is a wheelchair ramp?
screw
to reduce the force needed to move something
lever
to reduce friction and make it easier to move something
a machine that combines several simple machines and makes dangerous work/tasks easier
to lift heavy objects
the bigger the distance, the greater the force to move it = more work
inclined plane
A see saw is an example of a ---.
screw
to reduce the force needed to move something
lever
to reduce friction and make it easier to move something
a machine that combines several simple machines and makes dangerous work/tasks easier
to lift heavy objects
the bigger the distance, the greater the force to move it = more work
inclined plane
How do we use a pulley?
screw
to reduce the force needed to move something
lever
to reduce friction and make it easier to move something
a machine that combines several simple machines and makes dangerous work/tasks easier
to lift heavy objects
the bigger the distance, the greater the force to move it = more work
inclined plane
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