Collisions Phet Lab Answers -

phet free online physics chemistry biology earth - what is phet founded in 2002 by nobel laureate carl wieman the phet interactive simulations project at the university of colorado boulder creates free interactive math and science simulations, gas properties gas heat thermodynamics phet - pump gas molecules to a box and see what happens as you change the volume add or remove heat change gravity and more measure the temperature and pressure and discover how the properties of the gas vary in relation to each other, balanced and unbalanced forces physicsclassroom com - newton s first law of motion has been frequently stated throughout this lesson an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force