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| What occurs when an object's position changes in relation to another object? |
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| How do you calculate speed? |
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| When you know both the speed and the direction of an object's motion, you know the...? |
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| You can show the motion of an object on a line graph in which you plot distance against...? |
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| The steepness of a line on a graph is called the....? |
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| The rate at which velocity changes is called |
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| Give an example of deceleration. |
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| Example: A car approaching a red light |
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| To determine the acceleration of an object, you must calculate the change in velocity over...? |
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| If speed is measured in kilometers per hour and time is measured in hours, what is the unit of acceleration? |
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| Kilometers per hour per hour |
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| How do you calculate average speed? |
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| the total distancetraveled divided by the total time |
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| A place or object used for comparison to determine if something is in motion |
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| Horizontal line on a graph showing distance vs. time means... |
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| If you know the distance an object has traveled in a certain amount of time, you can determine... |
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| It is rare for any motion to... |
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| stay the same for a very long time |
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| When the speed of an object does not change |
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| A reference point is assumed to be ____ or not moving. |
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| A change in an object's position relative to a reference point is called |
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| The distance traveled by a moving object per unit of time is called |
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| The basic SI unit of length is |
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| How is 15 kilometers per hour abbreviated? |
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| Acceleration is the rate of change in _______. |
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| _____ is when an object slows down. |
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| The motion of a car stopping at a traffic light is an example of ____ acceleration, which is also known as deceleration. |
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| What is the abbreviation of the unit of acceleration (meters per second per second)? |
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| if a car is speeding up, its initial speed is ____ than its final speed. |
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| If two lines appear on the same motion graph, the line with the steeper ____ indicates a greater speed. |
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