Terms : Hide Images
| 9879922201 | Force | A push or a pull. |  | 0 |
| 9879922202 | Newtons (N) | Units used to measure Force. |  | 1 |
| 9879922203 | Applied Force | A push or pull on an object. |  | 2 |
| 9879922204 | Normal Force (perpendicular) | A support force exerted on an object resting on a solid surface. |  | 3 |
| 9879922205 | Friction | A force between two surfaces that are in contact with each other. |  | 4 |
| 9879922206 | Gravity | The force of attraction between any two objects that have mass. The strength of gravitational pull between two objects depends on the mass of the objects and the distance between them. |  | 5 |
| 9879922207 | Net Force | The combination of all the forces acting on an object. |  | 6 |
| 9879922208 | Balanced Forces | Produce no change in the motion of an object and the net force is equal to 0. |  | 7 |
| 9879922209 | Unbalanced Forces | When the net forces on an object are greater than 0, the forces are unbalanced. Unbalanced forces cause an object to start moving, stop moving, speed up, slow down or change direction. Unbalanced forces cause a change in velocity and therefore, cause acceleration. |  | 8 |
| 9879922210 | Instantaneous Speed | The speed at any instant of time. |  | 9 |
| 9879922211 | Average Speed | A measure of the distance traveled in a given period of time. |  | 10 |
| 9879922212 | Speed | How fast something is going. The slope of a distance versus time graph. |  | 11 |
| 9879922213 | Velocity | How fast something is going in a certain direction. Example: 30 mph east |  | 12 |
| 9879922214 | Acceleration | The rate at which the velocity of an object is changing. Acceleration of an object may be a change in direction or a change in speed (slowing down or speeding up). |  | 13 |
| 9879922215 | Stationary | At rest. |  | 14 |
| 9879922216 | Positive constant velocity | Direction of movement is away from the origin. |  | 15 |
| 9879922217 | Negative constant velocity | Direction of movement is returning to the origin. |  | 16 |
| 9879922218 | Kinetic Energy | Energy of Motion. |  | 17 |
| 9879922219 | Gravitational Potential Energy | Stored energy of position. A result of mass and height. |  | 18 |
| 9879922220 | Elastic Potential Energy | Stored energy as a result of stretching or compressing. |  | 19 |
| 9879922221 | Newton's First Law of Motion | An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. |  | 20 |
| 9879922222 | Newton's Second Law of Motion | The second law states that the greater the mass of an object, the more force it will take to accelerate the object. Force = mass x acceleration or F=ma. |  | 21 |
| 9879922223 | Newton's Third Law of Motion | The third law states that for every action, there is an equal and opposite reaction. |  | 22 |
| 9879922224 | Work | Work is the energy required to move an object against a force. Work is equal to the force times the distance the object moves. The SI unit for work is the joule. |  | 23 |
| 9879922225 | Joule | The unit used for measuring work. |  | 24 |
| 9879922226 | Mechanical Energy | The sum of kinetic and potential energy in an object that is used to do work. Energy in an object due to its motion or position, or both. |  | 25 |
| 9879922227 | Radiant Energy | The energy of electromagnetic waves. It is a form of energy that can travel through space. |  | 26 |
| 9879922228 | Chemical Energy | Energy stored in the bonds of chemical compounds (atoms and molecules). It is released in a chemical reaction. Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy. |  | 27 |
| 9879922229 | Electrical Energy | Energy created by electrons moving through an electrical conductor. |  | 28 |
| 9879922230 | Thermal Energy | Energy that comes from the temperature of matter. |  | 29 |
| 9879922231 | Nuclear Energy | Energy in the nucleus of an atom. |  | 30 |
| 9879922232 | Sound Energy | Sound is produced when a force causes an object or substance to vibrate — the energy is transferred through the substance in a wave. |  | 31 |
