## Presentation top top theme: "1) Speed: the price at which an object moves or the rate of adjust of position It depends on distance and also time."— Presentation transcript:

You are watching: What is the rate at which an object moves

1 2 3 4 1) Speed: the rate at which things moves or the price of adjust of place It relies on distance and time. 5 2) mean speed is discovered by splitting the complete distance by the full time. Speed= distance time 6 7 3) consistent means “does not change” so constant speed is rate that does no change. Favor cruise regulate in a car!! 8 due to the fact that speed is a ratio of street over time, the systems for speed are distance units over time units. 9 3.2 rate vs. Time graphs The place vs. Time graph has position top top the y-axis and also time on the x-axis. I m sorry runner has the fastest consistent speed? 10 11 4) Velocity is speed in a direction. Ex: 55 m/s north If you adjust speed, OR you readjust direction, you’ve changed velocity 12 stop check: i m sorry of the complying with are velocity and which room speed? a) 25 m/sforward b) 1500 km/h c) 55 m/h south d) 35 m/s increase 13 5) Acceleration is the rate of readjust of speed – that is the adjust in speed split by the readjust in time.  acceleration can be rise in velocity or a to decrease in velocity OR a readjust in direction 14 6) If there is no readjust in speed, however there is a readjust in direction acceleration has actually occurred. 15 3.3 Acceleration and direction A vehicle driving around a curve in ~ a continuous speed is accelerating because the direction is changing. 16 7) If the worth for acceleration is positive, the thing is speeding up. If the worth is negative the thing is slowly down. (also called deceleration) 17 You do the math: 1) What is the speed of things that travel 40 meter in 2 seconds? 2) What is the rate of an object that travels 50 meter in 100 seconds? 3) How fast is a car accelerating when it increases from 50 mph come 60 mph in ten seconds? 18 3.3 Acceleration and also motion graphs The place vs. Time graph reflects acceleration more clearly. This graph is a curve when there is acceleration. 19 8) things is in cost-free fall if it is speeding up due to the force of gravity and no other pressures are acting on it. Objects in free fall on earth accelerate downward. (that method they get much faster as they fall) 20 9) fallout’s objects rise their rate by 9.8 m/s every second, or 9.8 m/s 2 ; this is their acceleration as result of gravity. 21 10) A projectile is an object moving under the influence of just gravity. A moving soccer sphere is an example of a projectile. 22 EXTRAS! 23 3.2 The place vs. Time graph place vs. Time data tells you the runner’s position at various points in time. The runner is at 50 meter after 10 sec., 100 meter after 20 sec. And also 150 meters at 30 sec. 24 3.2 Graphs display relationships A good way to display a relationship between two variables is to usage a graph. A graph renders it easy to view if alters in one variable reason changes in the other variable (the effect). 25 3.2 slope You have the right to use position vs. Time graphs to quickly compare the speed of different objects. A steeper line on a position vs. Time graph means a much faster speed. 26 3.2 speed vs.

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Time graphs this graphs each display the very same event. What distinctions do girlfriend notice? 