Phelan, Glen. <br/><br/>
Using force and motion / 
by Glen Phelan. 
 - Washington :  National geographic Society,  c2001. 
 - 32 p. :  illus. , col ;  20 cm. 
 - Physical science. .
 - Physical science. .
<br/><br/><label>ISBN: </label>0792288882 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Force and energy.<br/>Motion.<br/>Physics.