| A | B |
|---|
| What is power? | the rate energy expands |
| What is mechanical energy? | energy due to the movement or position of something |
| What is potential energy? | the energy that something possesses because of its position |
| work-energy thereom equation | work=triangleKE |
| equation for KE | KE=1/2mv2 |
| equation for power | P=work/time |
| Can energy be created or destroyed? | yes |
| Can energy be transformed to one form ro another | yes |
| Does the total amount of energy ever change after being created, destroyed, or transformed? | no |
| What is the equation for the conservation of energy for machines? | work input=work output |
| What is the equation for efficiency? | energy output/input |
| What is efficiency? | the percentage of the work put into a machine that is converted into useful work input? |
| conversion chart | micro, milli, centi, deci, deka, hecto, kilo, mega |
| Where does our energy come from? | the sun |
| What HAS to happen before an object to have work done? | the object must move |
| Do I do more work if I run up a flight of stairs or walk? | walk |
| What is energy measured in? | Joules (like work) |
| What happens when work is done? | there is a transfer of energy |
| What is the equation for PE? | mgh |
| If the speed of an object is doubled, what happens to the KE? | it quadruples it |
