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Types of Simple Machines

Door Lock, Drill (Screw)
Door Lock, Drill (Screw)

Simple machines are the most basic ways of making work easier or more efficient. There are 6 of them (if the different kinds of levers are considered the same simple machine):…\n. \nInclined plane: Spreads out the work needed to move the object, so less is needed at once.\n. \nLever (first class ...

source: answers.com
image: ebay.co.uk
Flag Pole, Window Blinds (Pulley)
Flag Pole, Window Blinds (Pulley)

A pulley is a simple machine that uses the wheel and axle in combination with a rope or cable. The pulley or ropes is fixed to an overhanging object or surface and it is used to lift a load. For more information on the difference between a fixed pulley vs. a moveable pulley refer to the videos below.

Lever
Lever

When you push down one end of a lever, you apply a force (input) to it. The lever pivots on the fulcrum, and produces an output (lift a load) by exerting an output force on the load. A lever makes work easier by both increasing your input force and changing the direction of your input force.

Roller Coaster, Stairs (Inclined Plane)
Roller Coaster, Stairs (Inclined Plane)

When you are using an inclined plane, ... -Roller coasters-Bath tubs-Boat propellers-Parking ramps-Car ramps-Ladder-Stairs

Screw
Screw

A screw is a mechanism that converts rotational motion to linear motion, and a torque (rotational force) to a linear force. It is one of the six classical simple machines. The most common form consists of a cylindrical shaft with helical grooves or ridges called threads around the outside.

Seesaw, Rake (Lever)
Seesaw, Rake (Lever)

A seesaw is a simple machine that falls into the lever category. A lever is a long bar or stick that one pushes or pulls against a fulcrum to move something. A seesaw is a lever because its base acts as a fulcrum and its plank pivots to move the rider's weight up and down. A simple machine is a ...

source: reference.com
Sledge Hammer, Chisels (Wedge)
Sledge Hammer, Chisels (Wedge)

What Type of Simple Machine Is a Hammer? A: ... wedge, inclined plane and screw. Simple machines provide a mechanical advantage. This means ... Tools; Q: Is a Gear a ...

source: reference.com
image: mikids.com
The Inclined Plane
The Inclined Plane

An inclined plane is a simple machine with no moving parts. It is simply an even sloping surface. It makes it easier for us to move objects to higher or lower surfaces, than if we lifted the objects directly upwards. It is believed that ancient Egyptians used inclined planes to carry heavy stones to build pyramids.

The Pulley
The Pulley

Simple pulleys have their axles fixed in place and cannot be moved. The rope moved in the groove of the pulley but the wheel is fixed to one spot. The wheel on your school flag pole is a good example.

The Screw
The Screw

Screw (simple machine) A screw is a mechanism that converts rotational motion to linear motion, and a torque (rotational force) to a linear force. It is one of the six classical simple machines. The most common form consists of a cylindrical shaft with helical grooves or ridges called threads around the outside.

The Wedge
The Wedge

The Wedge (ramp) A wedge is simply a triangular tool, often made of metal, wood, stone or plastic. It is thick on one end and tapers to a thin or sharp edge on the other end.

Wedge
Wedge

A wedge is simply a triangular tool, often made of metal, wood, stone or plastic. It is thick on one end and tapers to a thin or sharp edge on the other end. Technically it is an inclined plane (or two inclined planes put together to form a triangle) that moves.

image: proprofs.com
Wheel and Axle
Wheel and Axle

A wheel alone or an axle alone is not a simple machine. They need to be joined to be called a simple machine. If you look closely at how a wheel and axle works, you will notice that it is a kind of class one lever. Here, an action on the axle (turning the axle) will cause an output at the other end (wheel turns too). The fulcrum is where the axle meets the wheel.

Windmill, fan (Wheel and Axle)
Windmill, fan (Wheel and Axle)

A simple door knob is another great example of the wheel and axle. The locking mechanism of the door knob is inside of the door and can only be controlled by the knob. Since it will be difficult turning the axle to open the door, we can turn the wheel instead and that does that job for us.