| A | B |
|---|
| drag | force that opposes forward movement |
| motion | change in position of one body/item to another body/item |
| atom | the smallest unit of an element that maintains the chemical properties of that |
| density | measure of mass of a substance per unit volume |
| newton | the force required to cause 1 kg of mass to accelerate 1 meter per second |
| molecule | smallest physical unit of a compound that can exist all by itself. |
| matter | Anything that takes up space and has mass |
| compound | Anything that takes up space and has mass |
| element | a substance that cannot be broken down into simpler substances |
| gravity | The force by which a planet or other body tends to draw objects toward its |
| heat | Conduction, convection, and radiation are three forms of ____ transfer |
| phase | solid, liquid, gas, or plasma. |
| particles | small piece or part |
| mass | amount of matter contained in a substance |
| acceleration | a change in the velocity (speed or direction) of a moving object |
| inertia | the resistance of objects to change in their motion |
| air resistance | friction between a solid object and air |
| momentum | An impelling force or strength |
| force | A push or a pull |
