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Review for: Unit 3 – Kinematics
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#1 In which section is the velocity zero?
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#2 In which section is the velocity negative?
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#3 The velocity in section A is…
0.2 km/hr 1 km/hr 5 km/hr 10 km/hr
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#4 In which section is the velocity zero?
. D B A
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#5 During which interval does the object have the greatest velocity?
. D B A
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#6 What is the greatest velocity attained?
8 m/s 10 m/s 16 m/s D B A
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#7 In which section is the object positively accelerating?
. D B A
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#8 The slope of a position vs. time graph indicates _____.
Acceleration Velocity Displacement Distance
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#9 The slope of a velocity vs. time graph indicates _____.
Acceleration Velocity Displacement Distance
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#10 A football player starts at the goal line and runs to the 50 yardline and back in 20 seconds. What is his average velocity? 0 yards/sec 2.5 yards/sec 5.0 yards/sec 1000 yards/sec Cannot be determined without knowing acceleration
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#11 During the flight of any projectile, the acceleration of the object is always ______.
Directed upward Directed downward Opposite its velocity In the direction of motion
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#12 An object can maintain constant speed, but still change velocity.
True False
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#13 An object can accelerate without changing its speed.
True False
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#14 An object is tossed upwards, during its flight up it…
Accelerates Decelerates Moves uniformly
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#15 An object is tossed upwards. At the top of its flight….
it stops its acceleration is zero its acceleration is about 10 m/s2 Both A and C are correct
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#16 On which hill will the ball roll down with increasing velocity but decreasing acceleration?
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Questions? Comments? Criticisms? Concerns? Complaints?
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