Simple Machines

What is a simple machine?

• A simple machine is a type of software used for basic tasks.

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

• A simple machine is a term used in biology to describe a specific organ.

• A simple machine is a complex system that requires multiple steps to operate.

Name the six types of simple machines.

• 7. Gear, 8. Spring, 9. Magnet

• 1. Lever, 2. Wheel and axle, 3. Pulley, 4. Inclined plane, 5. Wedge, 6. Screw

What is the purpose of a lever?

• To amplify force or distance.

• To cook food faster

• To fly in the air

• To communicate with animals

Give an example of a pulley.

• Elevator pulley system

• Flagpole pulley system

• Ceiling fan pulley system

• Bicycle pulley system

How does an inclined plane make work easier?

• By increasing the force required to move an object

• By reducing the mechanical advantage

• By increasing the distance over which the force is applied

• By decreasing the distance over which the force is applied

Explain how a screw is a simple machine.

• A screw is a simple machine because it is a type of lever.

• A screw is a simple machine because it is a type of pulley.

• A screw is a simple machine because it is a type of wheel and axle.

• A screw is a simple machine because it is an inclined plane wrapped around a cylinder.

What is the function of a wheel and axle?

• The function of a wheel and axle is to generate electricity

• The function of a wheel and axle is to communicate with satellites

• The function of a wheel and axle is to cook food

• The function of a wheel and axle is to reduce friction and allow for the movement of objects with less force.

Describe how a wedge is used as a simple machine.

• A wedge is used as a simple machine by increasing the distance between the wide and narrow ends.

• A wedge is used as a simple machine by converting a force applied to the wide end into a greater force over a smaller distance at the narrow end.

• A wedge is used as a simple machine by generating electricity when pressure is applied.

• A wedge is used as a simple machine by rotating it around a fixed point.

How does a simple machine change the direction of a force?

• By reversing the force's direction

• By amplifying the force's direction

• By nullifying the force's direction

• By redirecting or transmitting the force through mechanisms such as pulleys, levers, or gears.

Provide an example of a compound machine.

• A hammer

• A toaster

• A bicycle

• A pencil