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21 Cards in this Set
- Front
- Back
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is the line along which something moves. |
Direction |
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is a point or very short space in time. |
Instant |
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is the period of duration between two events. |
Time |
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is the state in which one object's position from another is changing. |
Motion |
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is a place or object used for comparison to determine if an object is in motion. |
Reference Point |
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is the length of the path between two points. |
Distance |
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is the distance an object travels per unit of time; distance divided by time. |
Speed |
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is the overall rate of speed at which an object moves; calculated by dividing the total distance an object travels by the total time. |
Average Speed |
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is the speed of an object at one instant of time. |
Instantaneous Speed |
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is the speed in a given direction. |
Velocity |
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is a change in velocity due to changes in direction and speed; or the rate at which velocity changes. |
Acceleration |
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is the steepness of a graph line; the ratio of the vertical change (the rise) to the horizontal change (the run). Rise divided by run. |
Slope |
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is a push or pull exerted on an object. |
Force |
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is the overall force on an object when all the individual forces acting on it are added together. |
Net Force |
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is the force that two surfaces exert on each other when they rub against each other. |
Friction |
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is the force that pulls everything near Earth's surface; the attractive force between objects. |
Gravity |
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is the force between charged particles. |
Electric Force |
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is the force that causes attraction; can also be a repulsive (repel) force. |
Magnetic Force |
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is the vertical difference between any two points on the line. |
Rise |
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is the horizontal difference between the same two points. |
Run |
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is a SI unit the is used in the measure the strength of force. |
Newton (N) |
