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This review covers the formulas for speed and velocity, differentiation between distance and displacement, positive and negative acceleration, concepts of motion, and conversions of units. Get ready to ace your physics knowledge!
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Review Trashketball • What is the formula for speed? • S = d/t • What is the formula for velocity? • V = displacement/time • What is instantaneous speed? • Speed the does not vary • What is the different between distance and displacement? • Distance= total amount traveled • Shortest distance/difference between where the object started and where is ended
Review Trashketball • What is the difference between positive and negative acceleration? • Positive = speeding up Negative= slowing down • Acceleration is change in speed and what else? • Change in direction • How would you show no motion in a distance vs time graph?
Trashketball Review • What is needed to determine velocity? • Distance, time, and direction • What is the definition of motion? • When an object changes position • Anna ran 100 meters in 20 seconds. What was her average speed? (don’t forget your units) • 5 m/s • Superman flies at 500km/hr. How far will he go in 3 hours? • 1500 km • How long will it take a train going 120km/hr to travel 540km? • 4.5 hours
Trashketball • A. 5m = _____ cm B. 75cm = _______ mm C. 121km= _____m • A. 500 cm B. 750 mm C. 121,000 • A. 17,000m = __km B. 48,000 mm = _____m C. 5,000mL = ____L • A. 17 km B. 48 m C. 5L • 427 L = ____ mL B. 43,000 mg = ______ g C. 27.6g = ____mg • A. 427,000mL B. 43g C 27,600