Question 1

If an object is moving at uniform speed in a straight line,its instantaneous velocity halfway through any time interval is

Accepted Answer

A) greater than its average velocity. 
B) less than its average velocity. 
C) the same as its average velocity. 
D) half of its average velocity. 
E) twice its average velocity. 
A) greater than its average velocity. 
B) less than its average velocity. 
C) the same as its average velocity. 
D) half of its average velocity. 
E) twice its average velocity.

Question 2

The relationship between the velocity of a body moving along the x axis and time is given by v = 3t2 - 2t,where the units are SI units.The total distance the body travels between the times t = 2 s and t = 4 s is

Accepted Answer

A) 12 m 
B) 60 m 
C) 48 m 
D) 34 m 
E) 44 m 
A) 12 m 
B) 60 m 
C) 48 m 
D) 34 m 
E) 44 m

Question 3

A vehicle is traveling in the -x direction to x = 100 m.It then reverses direction.At the instant when it changes direction,the acceleration of the vehicle is

Accepted Answer

A) positive. 
B) negative. 
C) zero. 
D) positive then negative. 
E) negative then positive. 
A) positive. 
B) negative. 
C) zero. 
D) positive then negative. 
E) negative then positive.

Question 4

A particle moves from x1 = 30 cm to x2 = - 40 cm.The displacement of this particle is

Accepted Answer

A) 30 cm 
B) 40 cm 
C) 70 cm 
D) -70 cm 
E) - 40 cm 
A) 30 cm 
B) 40 cm 
C) 70 cm 
D) -70 cm 
E) - 40 cm

Question 5

The distance traveled by a car in the x-direction is shown.When the car changes speed for t = 10 s to 15 s,it does so uniformly.Use the graph below to answer the question.  
-The speed of the car at 5 s is ____ speed at 20 s.

Accepted Answer

A) less than the 
B) equal to the 
C) greater than the 
D) unable to tell 
E) depends on what happens when it is accelerating between 10 and 15 s. 
A) less than the 
B) equal to the 
C) greater than the 
D) unable to tell 
E) depends on what happens when it is accelerating between 10 and 15 s.

Question 6

Use the following to answer the question:  
-Which graph of v versus t best describes the motion of a particle with negative velocity and negative acceleration?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 7

A sandbag is released from a rising air balloon and hits the ground 7 seconds later.From what height was the sandbag dropped from if at the moment of release the balloon was traveling upward at 3 m/s.

Accepted Answer

A) 219 m 
B) 240 m 
C) 459 m 
D) 261 m 
E) 55 m 
A) 219 m 
B) 240 m 
C) 459 m 
D) 261 m 
E) 55 m

Question 8

If the speed of particle A is twice that of particle B,the distance particle B travels in a given interval of time as compared with particle A is

Accepted Answer

A) twice as great. 
B) half as great. 
C) the same. 
D) four times as great. 
E) one-fourth as great. 
A) twice as great. 
B) half as great. 
C) the same. 
D) four times as great. 
E) one-fourth as great.

Question 9

A baseball is thrown vertically up to a height of 30 m on Earth.If the same ball is thrown up on the moon with the same initial speed how much further will it travel up? (Assume gmoon = gearth/6)

Accepted Answer

A) 5.0 m 
B) 25 m 
C) 12 m 
D) 180 m 
E) 150 m 
A) 5.0 m 
B) 25 m 
C) 12 m 
D) 180 m 
E) 150 m

Question 10

For this problem,refer to the figure in problem 31.Which point has the highest instantaneous velocity?

Accepted Answer

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

Question 11

A common statistic in car tests is the standing (starting from rest)quarter-mile performance.A modern sports car can achieve a terminal speed (speed at the end of the quarter-mile)of 120 mph (193 km/h).How does the average acceleration compare to g? (0.25 mile = 402 m)

Accepted Answer

A) 0.36 g 
B) 2.8 g 
C) 0.067 g 
D) 15.0 g 
E) 0.73 g 
A) 0.36 g 
B) 2.8 g 
C) 0.067 g 
D) 15.0 g 
E) 0.73 g

Question 12

A graph of the motion of an object is plotted with the velocity on the vertical axis and the time on the horizontal axis.The graph is a straight line.Which of these quantities CANNOT be determined from this graph?

Accepted Answer

A) the displacement from time t = 0 
B) the initial velocity at t = 0 
C) the acceleration of the object 
D) the average velocity of the object 
E) All four of the quantities can be determined from the graph. 
A) the displacement from time t = 0 
B) the initial velocity at t = 0 
C) the acceleration of the object 
D) the average velocity of the object 
E) All four of the quantities can be determined from the graph.

Question 13

The displacement of an object for a round trip between two locations

Accepted Answer

A) is always greater than zero. 
B) is always less than zero. 
C) is zero. 
D) can be greater than or less than but not equal to zero. 
E) can have any value. 
A) is always greater than zero. 
B) is always less than zero. 
C) is zero. 
D) can be greater than or less than but not equal to zero. 
E) can have any value.

Question 14

A particle decelerates uniformly from a speed of 30 cm/s to rest in a time interval of 5.0 s.It then has a uniform acceleration of 10 cm/s2 for another 5.0 s.The particle moves in the same direction along a straight line.The average speed over the whole time interval is

Accepted Answer

A) 20 cm/s 
B) 35 cm/s 
C) 38 cm/s 
D) 100 cm/s 
E) 12 cm/s 
A) 20 cm/s 
B) 35 cm/s 
C) 38 cm/s 
D) 100 cm/s 
E) 12 cm/s

Question 15

For uniformly accelerated motion,which of the following quantities must be zero?

Accepted Answer

A) the initial velocity 
B) the initial displacement 
C) the rate of change of the acceleration 
D) the rate of change of the velocity 
E) the rate of change of the displacement 
A) the initial velocity 
B) the initial displacement 
C) the rate of change of the acceleration 
D) the rate of change of the velocity 
E) the rate of change of the displacement

Question 16

The distance traveled by a car in the x-direction is shown.When the car changes speed for t = 10 s to 15 s,it does so uniformly.Use the graph below to answer question.  
-The acceleration of the car between 10 s and 15 s is

Accepted Answer

A) 1 m/s2 
B) 2 m/s2 
C) 3 m/s2 
D) 4 m/s2 
E) 5 m/s2 
A) 1 m/s2 
B) 2 m/s2 
C) 3 m/s2 
D) 4 m/s2 
E) 5 m/s2

Question 17

A ball is thrown upward from an 80-ft tower with an initial vertical speed of 40 ft/s.If air resistance is ignored,the ball's speed when it reaches the ground will be

Accepted Answer

A) 67 ft/s 
B) 1.3 $\times$ 102 ft/s 
C) 1.2 $\times$ 102 ft/s 
D) 49 ft/s 
E) 82 ft/s 
A) 67 ft/s 
B) 1.3 $\times$ 102 ft/s 
C) 1.2 $\times$ 102 ft/s 
D) 49 ft/s 
E) 82 ft/s

Question 18

The relationship between the velocity of a body moving along the x axis and time is given by v = 2t3 + 2t,where the units are SI units.The total distance the body travels between the times t = 2 s and t = 4 s is

Accepted Answer

A) 132 m 
B) 144 m 
C) 136 m 
D) 120 m 
E) 156 m 
A) 132 m 
B) 144 m 
C) 136 m 
D) 120 m 
E) 156 m

Question 19

The velocity of a particle is given by v(t)= At2 where A is a constant and the units for v are in m/s.The average velocity for the particle between t1 and t2 is

Accepted Answer

A) A(t22 - t12) 
B) A(t23 - t13) 
C)    
D)    
E) None of these is correct. 
A) A(t22 - t12) 
B) A(t23 - t13) 
C)    
D)    
E) None of these is correct.

Question 20

A particle moves from x1 = -50 cm to x2 = 30 cm.The displacement of this particle is

Accepted Answer

A) -50 cm 
B) 30 cm 
C) 80 cm 
D) -30 cm 
E) -80 cm 
A) -50 cm 
B) 30 cm 
C) 80 cm 
D) -30 cm 
E) -80 cm

Exam 2: Motion in One Dimension

If an object is moving at uniform speed in a straight line,its instantaneous velocity halfway through any time interval is

The relationship between the velocity of a body moving along the x axis and time is given by v = 3t2 - 2t,where the units are SI units.The total distance the body travels between the times t = 2 s and t = 4 s is

A vehicle is traveling in the -x direction to x = 100 m.It then reverses direction.At the instant when it changes direction,the acceleration of the vehicle is

A particle moves from x1 = 30 cm to x2 = - 40 cm.The displacement of this particle is

The distance traveled by a car in the x-direction is shown.When the car changes speed for t = 10 s to 15 s,it does so uniformly.Use the graph below to answer the question. -The speed of the car at 5 s is ____ speed at 20 s.

Use the following to answer the question: -Which graph of v versus t best describes the motion of a particle with negative velocity and negative acceleration?

A sandbag is released from a rising air balloon and hits the ground 7 seconds later.From what height was the sandbag dropped from if at the moment of release the balloon was traveling upward at 3 m/s.

If the speed of particle A is twice that of particle B,the distance particle B travels in a given interval of time as compared with particle A is

A baseball is thrown vertically up to a height of 30 m on Earth.If the same ball is thrown up on the moon with the same initial speed how much further will it travel up? (Assume gmoon = gearth/6)

For this problem,refer to the figure in problem 31.Which point has the highest instantaneous velocity?

A common statistic in car tests is the standing (starting from rest)quarter-mile performance.A modern sports car can achieve a terminal speed (speed at the end of the quarter-mile)of 120 mph (193 km/h).How does the average acceleration compare to g? (0.25 mile = 402 m)

A graph of the motion of an object is plotted with the velocity on the vertical axis and the time on the horizontal axis.The graph is a straight line.Which of these quantities CANNOT be determined from this graph?

The displacement of an object for a round trip between two locations

A particle decelerates uniformly from a speed of 30 cm/s to rest in a time interval of 5.0 s.It then has a uniform acceleration of 10 cm/s2 for another 5.0 s.The particle moves in the same direction along a straight line.The average speed over the whole time interval is

For uniformly accelerated motion,which of the following quantities must be zero?

The distance traveled by a car in the x-direction is shown.When the car changes speed for t = 10 s to 15 s,it does so uniformly.Use the graph below to answer question. -The acceleration of the car between 10 s and 15 s is

A ball is thrown upward from an 80-ft tower with an initial vertical speed of 40 ft/s.If air resistance is ignored,the ball's speed when it reaches the ground will be

The relationship between the velocity of a body moving along the x axis and time is given by v = 2t3 + 2t,where the units are SI units.The total distance the body travels between the times t = 2 s and t = 4 s is

The velocity of a particle is given by v(t)= At2 where A is a constant and the units for v are in m/s.The average velocity for the particle between t1 and t2 is

A particle moves from x1 = -50 cm to x2 = 30 cm.The displacement of this particle is

Systems of Measurement

Motion in Two and Three Dimensions

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Fluids

Oscillations

Wave Motion

Superposition and Standing Waves

Temperature and the Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Thermal Properties and Processes

The Electric Field I: Discrete Charge Distributions

The Electric Field Ii: Continuous Charge Distributions

Electric Potential

Capacitance

Electric Current and Direct-Current Circuits

The Magnetic Field

Sources of the Magnetic Field

Magnetic Induction

Alternating-Current Circuits

Maxwells Equations and Electromagnetic Waves

Properties of Light

Optical Images

Interference and Diffraction

Wave Particle Duality and Quantum Physics

Applications of the Schrodinger Equation

Atoms

Molecules

Solids and the Theory of Conduction

Relativity

Nuclear Physics

Elementary Particles and the Beginning of the Universe

Filters

The relationship between the velocity of a body moving along the x axis and time is given by v = 3t² - 2t,where the units are SI units.The total distance the body travels between the times t = 2 s and t = 4 s is

A particle moves from x₁ = 30 cm to x₂ = - 40 cm.The displacement of this particle is

A baseball is thrown vertically up to a height of 30 m on Earth.If the same ball is thrown up on the moon with the same initial speed how much further will it travel up? (Assume g_moon = g_earth/6)

A particle decelerates uniformly from a speed of 30 cm/s to rest in a time interval of 5.0 s.It then has a uniform acceleration of 10 cm/s² for another 5.0 s.The particle moves in the same direction along a straight line.The average speed over the whole time interval is

The relationship between the velocity of a body moving along the x axis and time is given by v = 2t³ + 2t,where the units are SI units.The total distance the body travels between the times t = 2 s and t = 4 s is

The velocity of a particle is given by v(t)= At² where A is a constant and the units for v are in m/s.The average velocity for the particle between t₁ and t₂ is

A particle moves from x₁ = -50 cm to x₂ = 30 cm.The displacement of this particle is