D2.1

describe different ways an object can move

D2.2

identify ways in which the position of an object can be changed 

D2.3

identify the six basic types of simple machines: lever, inclined plane, wedge, pulley, wheel and axle, and screw

D2.4

describe ways in which each type of simple machine is used in daily life to make tasks easier

D2.5

compare, qualitatively or quantitatively, the force required to move an object using various simple machines to the force required to move the object without using a simple machine