Study Guide -- Momentum, Center of Mass (Mr. Rogers AP Physics C )

 Unit Plan Practice Test Study Guide
 Online Quiz - Kinematics   http://assignments.discoveryeducation.com/              Q8E29-405B Physics I Perfectly Powerful Practice Test -- Kinematics Name _____________________________ Period_____________ Date__________________ Assume magic land conditions on all problems unless stated otherwise. In other words there is no air resistance or friction. Indicate the best answer: 1 ) Robin hood shoots an arrow up in the night sky. What is the acceleration at the very top of its path? a) zero b) 9.8 m/s/s upward c) 9.8 m/s/s downward d) it depends on the initial velocity 2 ) Bill drives his car 20 times around a circular track in 50 seconds. The track is 100 meters in diameter. What is Bill's average velocity? 3 ) Jane drives her car 20 mph for 40 mile and 40 mph for 60 miles. What is her average speed? 4 ) Name 3 controls on a car which can be used for changing its velocity. 5 ) Bambi steps into the road in front of Ben's car when he is going 45m/s. He slams on the brakes and stops after 7 seconds. Find the acceleration in g's. 6 ) The g is a unit of ________________ . 7 ) Juan's car has an acceleration = -2.76 m/s/s and a velocity = 43m/s. Is he slowing down or speeding up? 8 ) Martha's car is going 38 m/s when it hits a tree. It stops in 0.04 seconds. Find her acceleration in g's. 9 ) Bradley drops a rock in a well. It falls for 12 seconds. How deep is the well? 10 ) Which of the following is/are a vector(s)? a) displacement b) velocity c) distance d) speed  e) all of the answers 11 ) The Velocity of an object can be determined at a particular time by finding the slope of _____________. a) the displacement verses time plot b) the velocity verses time plot c) the acceleration verses time plot 12 ) Albert flips a coin up in the air at an upward velocity of 5 m/s. He fails to catch it on the way down and it falls down an 8 m deep well. Draw a vs t, v vs t, and y vs t curves. Calculate the max height and max magnitude of velocity of the coin. 13 ) Draw the a vs t, v vs t, and y vs t curves for the following relationship: a = 8t -2. Find the velocity after 3 seconds 14 ) Describe the effects of air resistance on the kinematics of a dropped object.
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