Simple Machines Inclined Plane Work force X distance

Simple Machines Inclined Plane

Work = force X distance • The work needed to lift an object is the force of the object multiplied by the distance it is lifted.

• The force needed to pull a load up an incline depends on the slope of the incline.

Effort force • The force exerted to pull the cart up the incline

Elements of Experimental Design • Clear hypothesis about how you think the effort force will change as the slope of the inclined plane changes

• Logical plan to test your prediction ( decide on some systematic way to change the angle of the incline and to measure the effort force each time. )

• Construct a table in which to record data and observations

Measuring the slope of the incline • Measure the angle of the incline with a protractor(place a protractor at the bottom of the incline with the center at the point where the board touches the table.

Effort Distance • The distance the cart moves along the incline while it moves 0. 10 m vertically Effort distance

Load Distance • The vertical distance the object is lifted Effort distance Load distance

Gravity • The principle force acting on the incline. Gravity pulls the object straight down toward the earth.

• An inclined plane does not reduce the amount of work needed to accomplish a task, but it makes it possible to use a smaller force to do the work.