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

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:

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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

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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?

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3

)

Jane drives her car 20 mph for 40 mile and 40 mph for 60 miles. What is her average speed?

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4

)

Name 3 controls on a car which can be used for changing its velocity.

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5

)

Bambi steps into the road in front of Ben's car when he is going 45m/s. He slams on the breaks and stops after 7 seconds. Find the acceleration in g's.

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6

)

The g is a unit of ________________ .

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7

)

Juan's car has an acceleration = -2.76 m/s/s and a velocity = 43m/s. Is he slowing down or speeding up?

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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.

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9

)

Bradley drops a rock in a well. It falls for 12 seconds. How deep is the well?

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10

)

Which of the following is a scalar?

a) displacement b) velocity c) distance d) all of the answers

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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