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Distance and Speed
Grade 10 distance and speed study cards
Question Answer
How can you tell teh acceleration of a car on a speed time graph? The slope of the line indicates the acceleration
What is high positive value? Rapidly increasing speed ( a line with a steep slope)
What is low positive value? Slowly increasing speed ( a line with hardly any slope)
What is Zero value? There is no acceleration ( there is a horizontal line across the graph)
What is negative value? The speed is decreasing ( the slope is negative)
What does the area under the speed time graph indicate? The area under the line ona speed time graph is the total distance traveled.
How can you tell that an object is accelerating? As long as there is a slope to the lone the object is accelerating
What is Instantaniouse speed? Is the sped at the particular moment in time, for any object moving a constant speed the instantaniouse speed is the same
How do you find intantaniouse speed on a distance time graph? A target is a straight line that just touches the slope of time on that line, the slope of this line is the instantaniouse speed
How do you find the instantaniouse speed on a speed time graph? For the speed time graph you just go straight down from the moment in which you want to find the speed for.
How do you find the instantaniouse speed on a distance time graph if the speed is changing?
General formula for average speed Vav = delta d/ delta t
General formula for average acceleration Aav = delta v/ delta t