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Physics Quiz
| Question | Answer |
|---|---|
| Physics | The branch of science that deals with the interaction of matter, motion, energy and forces |
| Energy | The ability to do work or cause change |
| Work | A force applied over a distance W=fxd |
| Law of Conservation of Energy | Energy cannot be created or destroyed; it may change from one form to another or transfer from one object to another, but the total amount of energy never changes |
| General Forms of Energy | (MENCH) Mechanical, Electromagnetic, Nuclear, Chemical, Heat |
| Chemical Energy ) | Energy associated with forming or breaking chemical bonds (Foods and Fuels) |
| Nuclear Energy | Associated with the strong forces holding the nucleus of the atom together |
| Fission | The process of an atoms nucleus splitting into smaller nuclei |
| Fusion | The process of 2 small nuclei joining together to form a single, larger nucleus |
| Mechanical Energy | Associated with objects in motion (kinetic energy) |
| Heat Energy | Associated with the motions of atoms and/or molecules |
| Electromagnetic Energy | Associated with moving electric charges |
| Potential Energy | Energy that's not causing change right now but is being stored for later use |
| Kinetic Energy | Energy a moving object has because of its mass and velocity |
| GPE-Gravitational Potential Energy | Energy possessed by an object because of its mass and height above the earth's surface |
| Chemical Potential Energy | Stored in chemical bond |
| Elastic Potential Energy | Stored in stretched materials |
| GPE - | mass x gravity x height |
| Kinetic Energy - | E(k)=mv2/2 or E(k)=1/2(mv2) |
| Mass is kilograms | (kg) |
| Distance in meters | (m) |
| Time in seconds | (s) |
| Acceleration(earth)to gravity = | 9.8m/s2 |
| Motion | An objects change in position over time relative to an agreed upon reference point |
| Speed | Distance travelled in a given time (meters divided by seconds) |
| Velocity | Speed in a specific direction |
| Acceleration | Any change in speed or direction |
| Acceleration- | /_\ V/time - /_\ means "change in" |
| GPE= | Joules (J) |
| Mass= | Kilograms (Kg) |
| Time= | Seconds (S) |
| Velocity= | m/s |
| Force= | Newton (N) 1 kg = 9.8N |
| Acceleration= | m/s2 |
| Kinetic Energy= | Joules |
Created by:
Thao Co
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