Question #1: If an object travels 300 meters in 6 seconds, what is its average speed? Answer: 50 m/sec = 111 mph.

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Presentation transcript:

Question #1: If an object travels 300 meters in 6 seconds, what is its average speed? Answer: 50 m/sec = 111 mph

Question #2: At which point on the graph below is the object not moving? a b c Answer: point b Time Distance

Question #3: Which of the cars on the graph is traveling at the fastest speed and which is traveling at the slowest speed? Car B Car A Car C Answer: Car A (fastest) & Car B (slowest) Time Distance

Question #4: What is a frame of reference you could use to tell that this dog is in motion? Answer: fence, grass

Question 5: Which type of speed is displayed on a speedometer: average or instantaneous? Answer: Instantaneous speed

Question #6: Where does the roller coaster have more potential energy and where does it have more kinetic energy? Answers: More PE = A (higher up) More KE = B(faster)

Question #7: Which of the following is not an example of acceleration: a.Stopping at a stop sign b.Going faster c.Turning a corner d.Going the same speed in a straight line Answer: d

Question #8: Use the graph to find the object’s speed at 2 s (hint: this is a speed/time graph Answer: 4 m/s

Question 9: What was the object’s average speed for the first 1.2 seconds (to the nearest tenth)? Answer: 5.8 m/s

Question 10: How long does it take for each of the following to occur? a.Earth to complete one rotation on its axis. b.Earth to complete one orbit around the sun. c.Moon to complete one orbit around the Earth = one lunar cycle. Answers: a. One day b. one year c. one month

Bonus Question #11: What is the name of the theory that explains the movement over time of the pieces of Earth’s crust? Answer: Theory of Plate Tectonics