DBQ Understanding Work and Simple Machines

What are simple machines?

• Basic mechanical devices that help perform work more easily

• Complex machines used in various applications

• Devices that make tasks harder

• Machines that do not change the direction of a force

Which of the following is NOT a type of simple machine?

• Lever

• Pulley

• Engine

• Wedge

How does a pulley make lifting easier?

• By changing the direction of the force needed to lift an object

• By increasing the weight of the object

• By decreasing the distance over which a force is applied

• By eliminating the need for a fulcrum

What is a first-class lever?

• A lever where the fulcrum is between the effort and the load

• A lever where the load is between the fulcrum and the effort

• A lever where the effort is between the fulcrum and the load

• A lever that does not have a fulcrum

Why is understanding simple machines important?

• They help us perform tasks with less effort

• They make tasks more complicated

• They are only used in construction

• They have no impact on technology and engineering

What are the six types of simple machines listed in the passage?

What are two examples of wedges that exist in real life? Attach two images along with your answer

What is an example of a pulley you have used / seen in everyday life?