1. how do machines make work easier?
2. how do you calculate work (what is the formula for work? )

3. what is the formula for mechanical advantage?

4. how does friction impact work?
5. what is the relationship between kinetic and potential energy? 6. how do you calculate kinetic energy (what is the formula)
7. a 700-kg vehicle is traveling at a speed of 6 m/s. how much kinetic energy does it have?
8. two rocks of different masses are rolling down a hill at the same speed. which rock (small one or big one) would have more kinetic energy?