Motion Review Challenge

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Presentation transcript:

Motion Review Challenge

What is the total distance traveled? Start Finish 10 m 6 m 4 m 15 m Ans. 45 m

What is the displacement? Start Finish 10 m 6 m 4 m 15 m Ans. 5 m right

Who is moving faster? position time Sam Sally Ans. Sally

Who starts out ahead? Sally Sam position time Ans. Sally

What is Sam’s speed? Ans. 2 m/s position (m) time (s) Sam 16 2 4 6 8 10 12 14 18 24 32 Ans. 2 m/s

What is Sally’s speed at t = 8 s? 32 24 Sally velocity (m/s) 16 8 2 4 6 8 10 12 14 16 18 time (s) Ans. 16 m/s

What is the displacement? position (m) time (s) 16 2 4 6 8 10 12 14 18 24 32 Ans. +8 m

What is the total distance traveled? 32 24 position (m) 16 8 2 4 6 8 10 12 14 16 18 time (s) Ans. 48 m

What is the average speed for the first 10 seconds? position (m) time (s) 16 2 4 6 8 10 12 14 18 24 32 Ans. 1.6 m/s

What is the fastest speed traveled? position (m) time (s) 16 2 4 6 8 10 12 14 18 24 32 Ans. 10 m/s

What is the displacement? velocity (m/s) time (s) 16 2 4 6 8 10 12 14 18 -2 -4 Ans. 36 m

What is the velocity of the object at t = 11 s? (m/s) time (s) 16 2 4 6 8 10 12 14 -2 -4 Ans. -3 m/s

What is the displacement of the object for the entire trip? 4 2 velocity (m/s) -2 -4 2 4 6 8 10 12 14 16 time (s) Ans. 12 m

What is the acceleration of the object? 4 2 velocity (m/s) -2 -4 2 4 6 8 10 12 14 16 18 time (s) Ans. 0

What is the acceleration of the object? 4 2 velocity (m/s) -2 -4 2 4 6 8 10 12 14 16 time (s) Ans. 1/3 m/s2

What is the object doing? 4 2 velocity (m/s) -2 -4 2 4 6 8 10 12 14 16 time (s) Ans. Slowing down

What is the object doing? 4 2 velocity (m/s) -2 -4 2 4 6 8 10 12 14 16 time (s) Ans. Speeding up

Ans. D

Ans. C

Ans. E

Ans. B

Ans. D

Ans. B

Ans. D

What is the velocity of the object? Ans. 32 m/s Position (m) Time (s)

Describe (in words) how to match this graph. 4 2 velocity (m/s) -2 -4 2 4 6 8 10 12 14 16 18 time (s) Ans. Move away from detector at constant speed of 2 m/s for 9 s, then move toward detector at constant speed of 1 m/s for 9 s

Describe (in words) how to match this graph. position (m) time (s) 16 2 4 6 8 10 12 14 18 Ans. Move forward at constant speed (4/9 m/s) for 9 s, stop moving for 4 s, then move forward at constant speed (1 m/s) for 2 s