POE 24 Semester Final A

Front

A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.

Back

inclined plane

Front

A light bulb best represents which answer option? Options: wedge, pulley, incline plane, screw

Back

screw

Front

The device used to raise a flag up a flag pole is an example of a

Back

pulley

Front

Which is a first class lever?

Back

Front

What class lever does this image best represent? Options: First, Second, Third, All classes

Back

Second

Front

An inclined plane is 15 meters long and raises 3 meters high. If you want to push a 20 N box up the inclined plane, how much effort force will you need?

Back

4 N

Front

A wheelbarrow is carrying 50 lb of cement. The radius of the wheel is 10 inches and the radius of the axel is 4 inches. What effort force is needed to move the cement if the axle is driving the wheel?

Back

125 lb

Front

A simple machine that consists of two circular objects of different sizes that rotate around a axle

Back

wheel and axle

Front

How could I reduce the effort force needed to lift the load? Options: move the fulcrum away from the load, move the fulcrum closer to the load, place the fulcrum in the middle

Back

move the fulcrum closer to the load

Front

The input force is where

Back

the effort is being applied