| A | B |
| When you play a trumpet, mechanical energy is converted into ___ energy. | sound |
| As a yo-yo moves down and up its string, potential energy changes into___ energy and then back to potential. | kinetic |
| For chemical energy to be used for some purpose, it must be converted into a different __ of energy. | form |
| The ___ states that energy can neither be created nor destroyed. | Law of Conservation of Energy |
| An electrical generator can use falling water to convert ___ energy into electrical energy. | mechanical |
| An apple tree converts__ energy from the Sun into chemical energy. | electromagnetic. |
| Some electrical energy entering a vacuum cleaner is converted to heat and sound. The percentage of energy used for cleaning is the vacuum's ___. | energy efficiency |
| As your book sits on the desk it has __ energy. | potential |