Simple Machines Quiz

What is a simple machine?

• A simple machine is a type of software program.

• A simple machine is a complex system of gears.

• A simple machine is a form of advanced artificial intelligence.

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

Name the six types of simple machines.

• 7. Gear

• 9. Magnet

• 8. Spring

• The six types of simple machines are: 1. Lever, 2. Wheel and axle, 3. Pulley, 4. Inclined plane, 5. Wedge, 6. Screw.

Explain how a lever works.

• A lever works by using a flexible material instead of a rigid bar

• A lever works by rotating around a fixed point called a pivot

• A lever works by pulling instead of pushing on the bar

• A lever works by using a rigid bar or beam that is able to pivot around a fixed point called a fulcrum.

Give an example of a pulley in everyday life.

• Coffee mug

• Flagpole

• Toothbrush

• Door knob

How does an inclined plane make work easier?

• By reducing the friction between the object and the inclined plane

• By increasing the force required to move an object

• By decreasing the distance over which the force is applied

• By increasing the distance over which the force is applied

Describe how a wheel and axle function as a simple machine.

• A wheel and axle function as a simple machine by allowing a larger force to be applied over a greater distance to move a load.

• A wheel and axle function by creating light

• A wheel and axle function by generating electricity

• A wheel and axle function by producing heat

What is the purpose of a wedge?

• Wedges are primarily used for cutting paper

• The purpose of a wedge is to separate two objects or portions of an object by applying force.

• A wedge is used to measure angles

• The purpose of a wedge is to hold objects together

How does a screw help in lifting heavy objects?

• By generating electricity

• By converting rotational motion into linear motion

• By creating a magnetic field

• By emitting light