Exploring Simple Machines

What is a simple machine?

• A simple machine is a type of computer.

• A simple machine is a complex mechanism that requires electricity.

• A simple machine is a device that helps make work easier by changing the direction or magnitude of a force.

• A simple machine is a tool used for cooking.

Name one type of simple machine.

• lever

• screw

• pulley

• wheel

What does a lever do?

• A lever generates electricity.

• A lever amplifies force to lift or move loads.

• A lever is used to measure weight.

• A lever decreases the speed of an object.

Can you give an example of a lever?

• A seesaw.

• A bicycle.

• A hammer.

• A pulley.

What is a pulley used for?

• To create friction for better grip.

• To store energy for machines.

• To lift heavy objects more easily.

• To measure weight accurately.

How does a pulley make work easier?

• A pulley only works in a vertical direction and cannot change force direction.

• A pulley makes work easier by changing the direction of force and reducing the effort needed to lift heavy objects.

• A pulley eliminates the need for any force when lifting objects.

• A pulley increases the weight of the load being lifted.

What are wheels and axles used for?

• Wheels and axles are used for decoration in vehicles.

• Wheels and axles are used to enable movement and reduce friction in vehicles and machinery.

• Wheels and axles are primarily used for storing energy.

• Wheels and axles are used to increase weight in machinery.

Can you name a vehicle that uses wheels and axles?

• Bicycle

• Airplane

• Skateboard

• Train

What is the effort in a lever?

• The effort in a lever is the weight of the lever itself.

• The effort in a lever is the distance from the fulcrum to the load.

• The effort in a lever is the force applied to lift or move a load.

• The effort in a lever is the amount of friction present in the system.

What is the load in a lever?

• The load in a lever is the pivot point around which it rotates.

• The load in a lever is the distance from the fulcrum.

• The load in a lever is the force applied to the lever arm.

• The load in a lever is the weight or resistance being lifted.