Simple Machines Quiz

What is a lever?

• A machine that uses a rope to lift objects

• A rigid bar that rotates around a fixed point to lift or move loads

• A slope used to reduce the effort needed to lift objects

• A device that holds objects together

Which of the following is an example of a pulley?

• A seesaw

• A staircase

• A flagpole system

• A screwdriver

What is the purpose of an inclined plane?

• To change the direction of a force

• To hold objects together

• To reduce the effort needed to lift objects

• To move objects in a circular path

How does a wheel and axle make work easier?

• By increasing the distance over which a force is applied

• By decreasing the distance over which a force is applied

• By changing the direction of the applied force

• By increasing the force applied to an object

What is a screw?

• An inclined plane wrapped around a cylinder

• A simple machine that uses grooves to lift objects

• A device that uses a wheel to move objects

• A type of lever

What is the main function of a wedge?

• To hold objects together

• To lift heavy objects

• To split or cut objects apart

• To change the direction of a force

Which of the following is NOT a type of lever?

• First-class lever

• Second-class lever

• Third-class lever

• Fourth-class lever

What does the mechanical advantage of a pulley system depend on?

• The weight of the object being lifted

• The number of pulleys used in the system

• The length of the rope

• The angle of the inclined plane

How does a wheel and axle help in moving objects?

• By reducing friction

• By increasing friction

• By converting rotational motion into linear motion

• By converting linear motion into rotational motion

Which simple machine is most similar to a screw?

• Lever

• Pulley

• Inclined Plane

• Wedge