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How much work is done on an object that is moved 10 m with a force of 2 N?
decrease the amount of work done
inclined plane
screw
gravitational
20 J
lever
efficiency
block and tackle
Potential energy because of height above Earth’s surface is called _____ potential energy.
decrease the amount of work done
inclined plane
screw
gravitational
20 J
lever
efficiency
block and tackle
A bar that is free to pivot about a fixed point is a
decrease the amount of work done
inclined plane
screw
gravitational
20 J
lever
efficiency
block and tackle
Which of the following CANNOT be done by a simple machine?
decrease the amount of work done
inclined plane
screw
gravitational
20 J
lever
efficiency
block and tackle
A slanted surface used to raise an object is a(n)
decrease the amount of work done
inclined plane
screw
gravitational
20 J
lever
efficiency
block and tackle
The work output of a machine compared to the work input is the _____ of the machine.
decrease the amount of work done
inclined plane
screw
gravitational
20 J
lever
efficiency
block and tackle
An arrangement of pulleys designed to reduce the effort force is called a
decrease the amount of work done
inclined plane
screw
gravitational
20 J
lever
efficiency
block and tackle
An inclined plane wrapped around a cylindrical post is a
decrease the amount of work done
inclined plane
screw
gravitational
20 J
lever
efficiency
block and tackle
Check it!