Term
| In everyday language, acceleration means |
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Definition
| The process of speeding up |
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Term
| The rate at which velocity changes |
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Definition
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Term
| In Science, acceleration refers to |
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Definition
| Increasing speed, decreasing speed, or changing direction. |
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Term
| Whenever an objects speed changes the object |
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Definition
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Term
| The change in speed can either be |
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Definition
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Term
| Slowing down is sometimes called |
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Definition
| deceleration or negative acceleration |
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Term
| Even an object moving at constant speed can be accelerating - as long as it is changing |
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Definition
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Term
| If an object is not changing direction, you can describe it's acceleration as the rate at which it's __________ changes. |
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Definition
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Term
| To determine the acceleration of an object moving in a straight line what equation do you use? |
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Definition
Acceleration = Final Speed - Initial Speed
Time |
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Term
| If speed is measured in meters per second(m/s) and time is measured in seconds, the SI unit of acceleration is |
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Definition
| Meters per second per second, or m/s2 |
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Term
| To analyze the motion of an acceleration object what graph do you use? |
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Definition
Speed-versus time graph
and
Distance-versus time graph |
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Term
| The ________ of the speed-versus time graph is the acceleration. |
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Definition
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Term
| A ____________ on a speed-versus-time graph means that the acceleration of the object is constant, but not zero. |
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Definition
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Term
| If the line slants upward, speed was_______ |
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Definition
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Term
| If the line slopes downward, speed was _______ |
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Definition
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Term
| An object is in _________ if it changes position relative to a reference point. |
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Definition
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Term
| A ____________ is a place or object used for comparison to determine if something is in motion. |
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Definition
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Term
| To determine motion for an object moving on or near Earth's surface, a reference point that is fixed to earth, such as _______ or a ________ is usually used. |
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Definition
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Term
| To describe motion completely, you need to use |
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Definition
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Term
| Scientist use a system of measurement called |
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Definition
| The International System of Units |
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Term
| In French, this systems name is |
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Definition
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Term
| __________ is the length of the path between two points. |
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Definition
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Term
| The SI unit for length is the ______ |
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Definition
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Term
| The distance from the floor to a doorknob is about ________ |
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Definition
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Term
| To measure smaller distances ___________ and ___________ are used. |
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Definition
| centimeters and millimeters |
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Term
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Definition
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Term
| A centimeter is one hundredth of a meter, so there are ________________ in a meter |
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Definition
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Term
| To measure a larger distance than a meter, ___________ are used |
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Definition
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Term
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Definition
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Term
| There are ________meters in a kilometer |
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Definition
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Term
| Changing position relative to another object |
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Definition
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Term
| The length and path between two points |
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Definition
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Term
| The __________ of an object is the distance the object moves per unit of time |
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Definition
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Term
| To calculate the speed of an object |
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Definition
Divide the distance the object travels by the amount of time it takes to travel that distance.
Speed = Distance
Time |
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Term
| Is the speed at which an object is moving at a given instant in time. |
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Definition
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Term
| To calculate the average speed of an object: |
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Definition
| Divide the total distance traveled by the total time. |
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Term
| When you know both the speed and direction of an object's motion, you know the ________ of the object |
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Definition
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Term
| You can show the motion of an object on a |
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Definition
Line graph
(plot distance versus time) |
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Term
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Definition
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Term
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Definition
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Term
| The steepness of a line on a graph is its ______ |
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Definition
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Term
| Tells you how fast one variable changes in relation to the other variale in the graph. |
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Definition
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Term
| Tells you the rate of change |
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Definition
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Term
| To calculate the slope of a line: |
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Definition
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Term
| The distance an object moves per unit of time |
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Definition
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Term
| Total distance divided by total time |
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Definition
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Term
| Speed at a given point in time |
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Definition
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Term
| Speed in a given direction |
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Definition
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