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Published byDerrick Sharp Modified over 8 years ago
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The distance an object travels in a certain amount of time. › Average speed – Total distance divided by total time › Constant speed - Speed that does not change over time On your paper, describe an example of an object at a constant speed.
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Speed equals distance divided by time.S=dt
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One side of a track is about 100 meters long. If it takes a person 20 seconds to run its length, how fast was the person running? In your notebook, calculate this problem. Make sure you show all work!
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One side of a track is about 100 meters long. If it takes a person 20 seconds to run its length, how fast was the person running? › Speed = Distance ÷ Time › Speed = 100 m ÷ 20 s › Speed = 5m/s Remember to label the UNITS!!
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An object’s speed and direction at a given time › The wind is blowing 65 km/hr from the North. On your paper, describe an example of velocity.
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A change in the direction or velocity of an object over time – which may be: › A change in speed Starting Stopping Speeding up (positive acceleration) Slowing down (negative acceleration) › A change in direction Acceleration is caused by unbalanced forces. On your paper, describe an example of an object accelerating.
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Our first super hero is Fire Hawk, he represents Speed. Our second hero is Rocket Man, he represents Velocity. For our final super hero we changed it up and made him a super villain, his name is Steam Roller. He represents Acceleration.
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Draw super hero http://www.cartoon critters.com/drawsup erhero.htm http://www.cartoon critters.com/drawsup erhero.htm http://drawsketch.a bout.com/od/cartoo ning/ss/draw-super- hero-punch.htm http://drawsketch.a bout.com/od/cartoo ning/ss/draw-super- hero-punch.htm
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