Question 1

Which one of the following statements must be true if the expression  is to be used?

Accepted Answer

A)  x is constant.
B)  v is constant.
C)  t is constant.
D)  a is constant.
E)  Both v0 and t are constant. D

Question 2

A brass ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s.
-How high does the ball rise?

Accepted Answer

A)  70.0 m
B)  10.0 m
C)  50.0 m
D)  20.0 m
E)  40.0 m E

Question 3

An object is moving along a straight line. The graph shows the object's velocity as a function of time.

-How far does the object move in the interval from t = 0 to t = 2 s?

Accepted Answer

A)  7.5 m
B)  10 m
C)  15 m
D)  20 m
E)  25 m B

Question 4

A turtle takes 3.5 minutes to walk 18 m toward the south along a deserted highway. A truck driver stops and picks up the turtle. The driver takes the turtle to a town 1.1 km to the north with an average speed of 12 m/s. What is the magnitude of the average velocity of the turtle for its entire journey?

Accepted Answer

A)  3.6 m/s
B)  9.8 m/s
C)  6.0 m/s
D)  2.6 m/s
E)  11 m/s

Question 5

An object is moving along a straight line. The graph shows the object's position from the starting point as a function of time.

-What was the instantaneous velocity of the object at t = 4 s?

Accepted Answer

A)  +6 m/s
B)  +8 m/s
C)  +10 m/s
D)  +20 m/s
E)  +40 m/s

Question 6

Peter noticed a bug crawling along a meter stick and decided to record the bug's position in five-second intervals. After the bug crawled off the meter stick, Peter created the table shown. 
-What is the total distance that the bug traveled between t = 0.00 s and t = 20.0 s? Assume the bug only changed directions at the end of a five-second interval.

Accepted Answer

A)  39.9 cm
B)  65.7 cm
C)  16.1 cm
D)  47.1 cm
E)  26.5 cm

Question 7

Starting from rest, a particle that is confined to move along a straight line is accelerated at a rate of 5.0 m/s2. Which statement concerning the slope of the position versus time graph for this particle is true?

Accepted Answer

A)  The slope has a constant value of 5.0 m/s.
B)  The slope has a constant value of 5.0 m/s2.
C)  The slope is both constant and negative.
D)  The slope is not constant and increases with increasing time.
E)  The slope is not constant and decreases with increasing time.

Question 8

Which one of the following situations is not possible?

Accepted Answer

A)  A body has zero velocity and non-zero acceleration.
B)  A body travels with a northward velocity and a northward acceleration.
C)  A body travels with a northward velocity and a southward acceleration.
D)  A body travels with a constant velocity and a time-varying acceleration.
E)  A body travels with a constant acceleration and a time-varying velocity.

Question 9

An object is moving along a straight line. The graph shows the object's position from the starting point as a function of time.

-In which segment or segments of the graph does the object have the highest speed?

Accepted Answer

A)  AB
B)  BC
C)  CD
D)  DE
E)  AB and CD

Question 10

An object is moving along the x axis. The graph shows its position from the starting point as a function of time. Various segments of the graph are identified by the letters A, B, C, and D.

-During which interval(s) is(are) the object moving in the negative x direction?

Accepted Answer

A)  during interval B only
B)  during intervals B and C
C)  during intervals C and D
D)  during intervals B and D
E)  during intervals B, C, and D

Question 11

An object is moving along a straight line in the positive x direction. The graph shows its position from the starting point as a function of time. Various segments of the graph are identified by the letters A, B, C, and D.

-During which interval(s) did the object move in the negative x direction?

Accepted Answer

A)  only during interval B
B)  only during interval C
C)  only during interval D
D)  during both intervals C and D
E)  The object never moved in the negative x direction.

Question 12

A bus leaves New York City, takes a non-direct route and arrives in St. Louis, Missouri 23 hours, 16 minutes later. If the distance between the two cities is 1250 km, what is the magnitude of the bus' average velocity?

Accepted Answer

A)  37.2 km/h
B)  41.4 km/h
C)  46.0 km/h
D)  53.7 km/h
E)  58.1 km/h

Question 13

An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval?

Accepted Answer

A)  2.0 m/s2, upward
B)  2.0 m/s2, downward
C)  5.3 m/s2, upward
D)  5.3 m/s2, downward
E)  2.7 m/s2, downward

Question 14

Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 4 m/sS1U1P12S1S1P0.
-What is the speed of the particle after it has traveled 8 m?

Accepted Answer

A)  4 m/s
B)  8 m/s
C)  30 m/s
D)  60 m/s
E)  100 m/s

Question 15

A automotive test driver travels due north in a prototype hybrid vehicle at 30 mi/h for 2 hours. She then reverses her direction and travels due south at 60 mi/h for 1 hour.
-What is the average speed of the vehicle?

Accepted Answer

A)  zero mi/h
B)  30 mi/h
C)  40 mi/h
D)  50 mi/h
E)  60 mi/h

Question 16

An object is moving along a straight line. The graph shows the object's velocity as a function of time.

-During which interval(s) of the graph does the object travel equal distances in equal times?

Accepted Answer

A)  0 s to 2 s
B)  2 s to 3 s
C)  3 s to 5 s
D)  0 s to 2 s and 3 s to 5 s
E)  0 s to 2 s, 3 to 5 s, and 5 to 6 s

Question 17

The figure shows the speed as a function of time for an object in free fall near the surface of the earth.  The object was dropped from rest in a long evacuated cylinder.
-If the same object were released in air, the magnitude of its acceleration would begin at the free-fall value, but it would decrease continuously to zero as the object continued to fall. For which one of the choices given does the solid line best represent the speed of the object as a function of time when it is dropped from rest in air? Note: The dashed line shows the free-fall under vacuum graph for comparison.

Accepted Answer

A)  a
B)  b
C)  c
D)  d
E)  e

Question 18

A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s.  Neglect any effects due to air resistance.
-What is the magnitude of the ball's displacement from the starting point after 1.00 second has elapsed?

Accepted Answer

A)  9.80 m
B)  14.7 m
C)  19.6 m
D)  24.5 m
E)  58.8 m

Question 19

In which one of the following situations does the car have a westward acceleration?

Accepted Answer

A)  The car travels westward at constant speed.
B)  The car travels eastward and speeds up.
C)  The car travels westward and slows down.
D)  The car travels eastward and slows down.
E)  The car starts from rest and moves toward the east.

Question 20

A tennis ball is shot vertically upward in an evacuated chamber inside a tower with an initial speed of 20.0 m/s at time t = 0 s.
-Determine the velocity of the ball at t = 3.00 seconds.

Accepted Answer

A)  9.40 m/s, downward
B)  9.40 m/s, upward
C)  29.4 m/s, downward
D)  38.8 m/s, upward
E)  38.8 m/s, downward

Exam 2: Kinematics in One Dimension

Which one of the following statements must be true if the expression is to be used?

A brass ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s. -How high does the ball rise?

An object is moving along a straight line. The graph shows the object's velocity as a function of time. -How far does the object move in the interval from t = 0 to t = 2 s?

An object is moving along a straight line. The graph shows the object's position from the starting point as a function of time. -What was the instantaneous velocity of the object at t = 4 s?

Starting from rest, a particle that is confined to move along a straight line is accelerated at a rate of 5.0 m/s². Which statement concerning the slope of the position versus time graph for this particle is true?

Which one of the following situations is not possible?

An object is moving along a straight line. The graph shows the object's position from the starting point as a function of time. -In which segment or segments of the graph does the object have the highest speed?

An object is moving along the x axis. The graph shows its position from the starting point as a function of time. Various segments of the graph are identified by the letters A, B, C, and D. -During which interval(s) is(are) the object moving in the negative x direction?

An object is moving along a straight line in the positive x direction. The graph shows its position from the starting point as a function of time. Various segments of the graph are identified by the letters A, B, C, and D. -During which interval(s) did the object move in the negative x direction?

A bus leaves New York City, takes a non-direct route and arrives in St. Louis, Missouri 23 hours, 16 minutes later. If the distance between the two cities is 1250 km, what is the magnitude of the bus' average velocity?

An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval?

Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 4 m/s². -What is the speed of the particle after it has traveled 8 m?

A automotive test driver travels due north in a prototype hybrid vehicle at 30 mi/h for 2 hours. She then reverses her direction and travels due south at 60 mi/h for 1 hour. -What is the average speed of the vehicle?

An object is moving along a straight line. The graph shows the object's velocity as a function of time. -During which interval(s) of the graph does the object travel equal distances in equal times?

A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s. Neglect any effects due to air resistance. -What is the magnitude of the ball's displacement from the starting point after 1.00 second has elapsed?

In which one of the following situations does the car have a westward acceleration?

A tennis ball is shot vertically upward in an evacuated chamber inside a tower with an initial speed of 20.0 m/s at time t = 0 s. -Determine the velocity of the ball at t = 3.00 seconds.

Exam 2: Kinematics in One Dimension

Which one of the following statements must be true if the expression is to be used?

A brass ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s. -How high does the ball rise?

An object is moving along a straight line. The graph shows the object's velocity as a function of time. -How far does the object move in the interval from t = 0 to t = 2 s?

An object is moving along a straight line. The graph shows the object's position from the starting point as a function of time. -What was the instantaneous velocity of the object at t = 4 s?

Starting from rest, a particle that is confined to move along a straight line is accelerated at a rate of 5.0 m/s2. Which statement concerning the slope of the position versus time graph for this particle is true?

Which one of the following situations is not possible?

An object is moving along a straight line. The graph shows the object's position from the starting point as a function of time. -In which segment or segments of the graph does the object have the highest speed?

An object is moving along the x axis. The graph shows its position from the starting point as a function of time. Various segments of the graph are identified by the letters A, B, C, and D. -During which interval(s) is(are) the object moving in the negative x direction?

An object is moving along a straight line in the positive x direction. The graph shows its position from the starting point as a function of time. Various segments of the graph are identified by the letters A, B, C, and D. -During which interval(s) did the object move in the negative x direction?

A bus leaves New York City, takes a non-direct route and arrives in St. Louis, Missouri 23 hours, 16 minutes later. If the distance between the two cities is 1250 km, what is the magnitude of the bus' average velocity?

An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval?

Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 4 m/s2. -What is the speed of the particle after it has traveled 8 m?

A automotive test driver travels due north in a prototype hybrid vehicle at 30 mi/h for 2 hours. She then reverses her direction and travels due south at 60 mi/h for 1 hour. -What is the average speed of the vehicle?

An object is moving along a straight line. The graph shows the object's velocity as a function of time. -During which interval(s) of the graph does the object travel equal distances in equal times?

A ball is shot straight up from the surface of the earth with an initial speed of 19.6 m/s. Neglect any effects due to air resistance. -What is the magnitude of the ball's displacement from the starting point after 1.00 second has elapsed?

In which one of the following situations does the car have a westward acceleration?

A tennis ball is shot vertically upward in an evacuated chamber inside a tower with an initial speed of 20.0 m/s at time t = 0 s. -Determine the velocity of the ball at t = 3.00 seconds.

Starting from rest, a particle that is confined to move along a straight line is accelerated at a rate of 5.0 m/s². Which statement concerning the slope of the position versus time graph for this particle is true?

Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 4 m/s². -What is the speed of the particle after it has traveled 8 m?