Understanding Simple Machines

What is a simple machine?

• A simple machine is a device that changes the direction or magnitude of a force.

• A simple machine is a type of complex machinery.

• A simple machine is a tool used for cooking.

• A simple machine is a device that only increases speed.

Which of the following is NOT a simple machine?

• Lever

• Inclined Plane

• Bicycle

• Pulley

What type of simple machine is a lever?

• A lever is a type of simple machine.

• A lever is a type of wheel.

• A lever is a type of pulley.

• A lever is a type of inclined plane.

What is the purpose of a pulley?

• To measure weight accurately

• The purpose of a pulley is to lift heavy objects more easily by changing the direction of force and reducing the effort needed.

• To store energy for later use

• To create friction for better grip

Which simple machine is used to lift heavy objects?

• Wheel and Axle

• Pulley

• Inclined Plane

• Lever

What is an example of an inclined plane?

• A ramp

• A wheel

• A flat surface

• A lever

How does a wheel and axle work?

• A wheel and axle works by spinning the axle without the wheel moving.

• A wheel and axle functions by creating friction to slow down movement.

• A wheel and axle works by allowing the wheel to rotate around the axle, reducing friction and enabling easier movement of objects.

• A wheel and axle operates by using gears to lift heavy objects.

What is the function of a screw?

• To measure distances accurately.

• To serve as a decorative element.

• To fasten objects together or lift materials.

• To create holes in materials.

Which simple machine can change the direction of force?

• Wheel and Axle

• Pulley

• Inclined Plane

• Lever

What is the mechanical advantage of using simple machines?

• To increase the amount of force needed to perform work.

• The mechanical advantage of using simple machines is to reduce the amount of force needed to perform work.

• To eliminate the need for any force when performing work.

• To make machines more complex and harder to use.