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10Simple machines help us do work with less effort.
Electric motors are considered simple machines.
A wedge is a type of simple machine.
A pulley can change the direction of a force.
Inclined plane is used to raise heavy loads easily.
Wheel and axle cannot be considered a simple machine.
Simple machines require human or animal force to operate.
Screw is a form of inclined plane.
Lever always decreases the effort needed without changing direction.
Simple machines do not reduce the total work done.
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Which of these is a simple machine?
Which simple machine is used to cut objects?
A wheel and axle is used to
Screw is a type of
A pulley changes
Effort required to move a load using a simple machine is usually
Inclined plane helps to
Which of these is not a simple machine?
Lever consists of
A wedge is mainly used for
Tools that make work easier are called ______ machines.
A lever has three main parts: fulcrum, load and ______.
A machine that lifts loads using a rope is called a ______.
A ______ is used to cut or split objects.
A ______ is a twisted form of an inclined plane.
Simple machines work without using ______ or electricity.
Simple machines help to do work with ______.
A pulley can change the ______ of force.
The main purpose of simple machines is to make work ______.
Human force or ______ power is usually needed to operate simple machines.