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SCI8-Physics
Forces and motion (EPISD 8th grade)
| Question | Answer |
|---|---|
| Speed | Change of distance over time |
| Velocity | Speed and direction |
| Acceleration | Change of velocity over time |
| Work | Force times distance |
| Energy | Ability to do work |
| Force | A push or a pull |
| Kinetic | Energy being used (or in motion) |
| Potential | Energy that is stored |
| Motion | Change in position relative to another object |
| Balanced forces | Forces that are equal and result in no movement |
| Unbalanced forces | Forces that are unequal and result in acceleration |
| Isaac Newton | Scientist who described the laws of motion |
| Friction | Resistance force as an object moves along a surface |
| Simple machine | A device that changes the direction or force needed to perform work |