Slope, Speed, Acc.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| You know the average speed of a trip. You also have a distance versus time graph of the trip. Which gives you more information about the trip-- the speed or the graph? Explain your answer. | The graph because you can get the average speed, instantaneous speed, distance traveled time, time it took, and times you stopped
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| What is the slope of a distance vs. time graph equal to? | Speed
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| What is the slope of a speed vs. time graph equal to? | Acceleration
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| What's the difference between average speed and instantaneous speed? Explain and give a real-life example. | Average speed: Total distance divided by total time
Instantaneous speed: Speed you have at a specific point on the journey
On an out-of-state trip, your instantaneous speed is the speed at a particular point in time
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| Does the speedometer of a car give you the average speed or the instantaneous speed of the car? Explain. | Instantaneous speed because it only shows the speed at a particular instant in time. It changes from one instant to the next.
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| What is the acceleration of a car that is going at a steady speed of 60 mph? | 0 m/hr2 if the car doesn't turn
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| Does a car accelerate when it goes around a corner at a steady speed? Explain your answer. | Yes a change in direction is acceleration
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| What is the difference between acceleration and speed? | Speed is distance over time. Acceleration is how much your speed changes over time
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| What is the difference between speed and velocity? | Velocity tells you the speed and direction. Speed tells you how fast you are going over a certain distance
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| Cruise control? | Zero acceleration
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| Applying brakes on a truck? | Deceleration
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| Dropping a ball from a roof? | Acceleration (due to gravity)
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| A motorcycle parked in a parking lot? | Zero acceleration
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| A car turning a sharp corner? | Acceleration
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| Why do we calculate slope on a distance vs. time graph? | It shows you the amount of distance you cover in a certain amount of time (speed)
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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