Review for: Unit 3 – Kinematics

#1 In which section is the velocity zero? .

#2 In which section is the velocity negative? .

#3 The velocity in section A is… 0.2 km/hr 1 km/hr 5 km/hr 10 km/hr

#4 In which section is the velocity zero? . D B A

#5 During which interval does the object have the greatest velocity? . D B A

#6 What is the greatest velocity attained? 8 m/s 10 m/s 16 m/s D B A

#7 In which section is the object positively accelerating? . D B A

#8 The slope of a position vs. time graph indicates _____. Acceleration Velocity Displacement Distance

#9 The slope of a velocity vs. time graph indicates _____. Acceleration Velocity Displacement Distance

#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

#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

#12 An object can maintain constant speed, but still change velocity. True False

#13 An object can accelerate without changing its speed. True False

#14 An object is tossed upwards, during its flight up it… Accelerates Decelerates Moves uniformly

#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

#16 On which hill will the ball roll down with increasing velocity but decreasing acceleration?

Questions? Comments? Criticisms? Concerns? Complaints?