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Which simple machine would be the most efficient for lifting an object 30 m off the ground?
compound machine
True
lever
inclined plane
pulley
by decreasing the force needed to complete the task
wheel and axle
W = F x d
What is the formula for work?
compound machine
True
lever
inclined plane
pulley
by decreasing the force needed to complete the task
wheel and axle
W = F x d
a simple machine that consists of two circular objects of different sizes
compound machine
True
lever
inclined plane
pulley
by decreasing the force needed to complete the task
wheel and axle
W = F x d
A machine is a device that makes work easier by changing the size or direction of a force. True or False?
compound machine
True
lever
inclined plane
pulley
by decreasing the force needed to complete the task
wheel and axle
W = F x d
How can simple machines make work easier?
compound machine
True
lever
inclined plane
pulley
by decreasing the force needed to complete the task
wheel and axle
W = F x d
two or more simple machines put together
compound machine
True
lever
inclined plane
pulley
by decreasing the force needed to complete the task
wheel and axle
W = F x d
A simple machine that is a straight, slanted surface, and facilitates the raising of loads
compound machine
True
lever
inclined plane
pulley
by decreasing the force needed to complete the task
wheel and axle
W = F x d
a simple machine that has a bar that pivots at a fixed point called a fulcrum
compound machine
True
lever
inclined plane
pulley
by decreasing the force needed to complete the task
wheel and axle
W = F x d
Check it!