| A | B |
|---|
| Acceleration | how fast speed and/or direction changes. It is calculated by subtracting original velocity from final velocity and deviding by time. |
| Air Resistance | force of air pushing against a moving object. |
| Centripital Acceleration | acceleration directed toward the center of a circular path. |
| Centripetal Force | a push or pull that makes an object move in a curved path. Its direction is toward the center of the object's curved path. |
| Equilibrium | A state of balance between opposing forces or effects. |
| Force | any sort of push or pull. |
| Friction | a force from surrounding material which pushes or pulls on objects when you try to move them. Friction causes coaster rides to slow down. |
| Gravitational Potential Energy | the amount of energy of position above the surface of the earth. The higher the object is, the greater the gravitational potential energy it has relative to the surface. |
| G-Force | one g equals the gravitational energy it has relative to the surface. |
| Inertia | the tendacy of matter to remain at rest or move at a constant speed in a straight line. |
| Jerk | rate change of acceleration to remain at rest or move at a constant speed in a straight line. |
| Kinetic Energy | the energy of motion. The faster you go the more you have. An energy cannot speed up unless it gets energy from something that pushed or pulls it through some distance. |
| Mass | a property of any object. The more mass an object has, the harder it is to accelerate it. the mass of the earth causes gravity. |
| Momentum | a kind of moving inertia that tends to keep moving objects going in the same direction. |
| Parabola | the shape of the curved path of a ball as it is tossed from one person to another. |
| Potential Energy | stored energy, or energy of position. |
| Speed | distance/time. |
| Velocity | the speed of an object in a particular direction. |
| Newton | in the metric system, the unit used to measure force or weight. |
| Relative Motion | the change in position of one object compared to the position of another. |
