Lever

Pulley

Inclined Plane

Wheel and Axle

A lever functions by rotating around a pivot to balance weights evenly.

A lever works by using a fulcrum to amplify force, allowing a small input force to lift a larger load.

A lever amplifies force by using a spring mechanism to store energy.

A lever operates by pushing down on one end to move the other end up.

First-class levers apply effort at one end, while third-class levers have the load in the center.

First-class levers have the load between the effort and fulcrum, while third-class levers have it at one end.

The main difference is the position of the fulcrum: first-class levers have it between the effort and load, while third-class levers have it at one end with effort applied between.

The fulcrum in first-class levers is at one end, while in third-class levers it is in the middle.

A bicycle with gears to change speed.

A window with a sliding mechanism.

A flagpole with a rope to raise and lower the flag.

A door with a handle to open and close.

Sprocket, belt, frame, tensioner

Lever, gear, chain, support structure

Wheel, rod, string, base support

Wheel, axle, rope or cable, frame or housing (optional)

An inclined plane makes it impossible to lift heavy objects easily.

An inclined plane helps in lifting objects by allowing a smaller force to be applied over a longer distance, making it easier to raise the object.

An inclined plane lifts objects by increasing their weight.

An inclined plane requires more force to lift objects quickly.

MA = Base of the incline / Length of the incline

MA = Length of the incline / Height of the incline

MA = Weight of the object / Force applied

MA = Height of the incline / Length of the incline

Wheels and axles generate power for machines.

Wheels and axles are used for storage in machines.

Wheels and axles facilitate movement and reduce friction in machines.

Wheels and axles are primarily for decoration in machines.

A wheel and axle reduces friction by creating a sliding motion that enhances speed.

A wheel and axle reduces friction by increasing surface area for better grip.

A wheel and axle reduces friction by using a flat surface to eliminate all resistance.

A wheel and axle reduce friction by enabling rolling motion, which minimizes contact area and resistance.

A bicycle is a simple machine that only uses wheels for movement.

An example of a compound machine is a hammer, which uses a single lever to drive nails.

A compound machine is a device that only consists of gears and pulleys without any other components.

An example of a compound machine is a bicycle, which combines wheels (wheel and axle), pedals (lever), and gears (pulley) to facilitate movement.

Levers are primarily used for measuring distances in construction.

Levers are only useful for balancing light objects in construction.

Levers are used to lift heavy materials and apply force efficiently in construction.

Levers are designed to create decorative elements in construction.

Advantages of using pulleys include mechanical advantage, ease of lifting, and the ability to change the direction of force.

Pulleys can only lift objects vertically.

Pulleys are only useful for heavy loads.

Pulleys increase friction and resistance.

The angle of an inclined plane affects its efficiency by changing the force required to move objects; steeper angles reduce efficiency.

The angle only affects the speed of objects, not the force required.

Steeper angles always increase efficiency by reducing friction.

The angle of an inclined plane has no effect on efficiency; it remains constant.

The fulcrum is used to balance the lever without any force.

The purpose of a fulcrum is to connect two levers together.

A fulcrum acts as a weight that is added to the lever.

The purpose of a fulcrum in a lever is to serve as the pivot point that enables the lever to amplify force.