M2.2 Work and Machines

Front

Which of the following is NOT a simple mechanical advantage device? Lever, Pulley, Gear, Computer

Back

Computer

Front

What is a lever?

Back

A rigid bar that turns about a fixed axis

Front

What happens when you increase the distance from the applied effort to the fulcrum in a first-class lever?

Back

Increases the mechanical advantage

Front

Which of the following is NOT an example of a first-class lever? Crowbar, Claw hammer, Pliers, Bicycle

Back

Bicycle

Front

Formula to calculate effort required to lift a weight using a lever?

Back

E × L = R × l

Front

What is the relationship between effort and resistance in a first class lever?

Back

They act in opposite directions

Front

What is the relationship used to calculate a second-class lever?

Back

Same as a first-class lever EL = Fl

Front

What type of lever is a wheelbarrow?

Back

Second-class lever

Front

Position of the fulcrum in a third-class lever?

Back

At the end

Front

What is the unit of measurement for effort in the inclined plane formula?

Back

Newtons