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Week
14 – Physics |
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| 1) Friction | The force that keeps two objects from just sliding past each other is they are touching. |
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2) Force |
A push or a pull. |
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3) Acceleration |
Speeding up, slowing down, or changing direction. |
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4) Velocity |
Speed with a direction |
| 5) Speed | How fast something is moving.
How far it goes and the amount of time it takes (S = D/T) |
| 6) Balanced Forces |
Equal
forces on an object that cause no motion. |
| 7) Unbalanced Forces | Forces acting on an object which cause it to
move. One force must be
greater than the other. |
| 8) Potential Energy | The energy an object has when not moving.
This is stored energy waiting to be released when the object
moves. The higher
something is the more potential it has. |
| 9) Kinetic Energy |
The energy of motion.
The faster something is moving and more mass it has, the more
kinetic energy. |
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10) Gravity |
A force of attraction
between any two things that occurs because of their mass.
More mass = more gravity. More
distance = less gravity. |