| A | B |
|---|
| speed | rate of motion or progress |
| movement | a change of position or location |
| motion | change of location of something in reference to a certain point |
| physicist | a scientist who studies physics |
| producer | one who makes goods or services |
| consumer | one who buys a product or uses a service |
| economy | managing the resources of a community |
| use | to employ for some service |
| fall | to come to a lower position |
| way | method or plan for reaching a goal |
