Question 1

The SI prefix for 10-9 is

Accepted Answer

A)  pico-. 
B)  tera-. 
C)  centi-. 
D)  giga-. 
E)  nano-. 
A)  pico-. 
B)  tera-. 
C)  centi-. 
D)  giga-. 
E)  nano-.

Question 2

All of the following are base units of the SI system except the

Accepted Answer

A)  candela 
B)  kilogram. 
C)  meter. 
D)  kelvin. 
E)  volt. 
A)  candela 
B)  kilogram. 
C)  meter. 
D)  kelvin. 
E)  volt.

Question 3

Consider a human heart rate of 80 beats per minute. If someone's heart beats at that rate over a 70-yr lifetime, how many times would it beat?

Accepted Answer

A)  1.78 × 107  
B)  2.20 × 109  
C)  3.26 × 1010  
D)  2.95 × 109  
E)  7.44 × 105  
A)  1.78 × 107  
B)  2.20 × 109  
C)  3.26 × 1010  
D)  2.95 × 109  
E)  7.44 × 105

Question 4

Using dimensional analysis, which one of the following equations is dimensionally correct?
( a   m/s2, v   m/s, x   m , t   s)

Accepted Answer

A)  t2 = x/a 
B)  x = a t 
C)  v = 2ax 
D)  x = v/t 
E)  x2 = 2av 
A)  t2 = x/a 
B)  x = a t 
C)  v = 2ax 
D)  x = v/t 
E)  x2 = 2av

Question 5

A 400-m tall tower casts a 600-m long shadow over level ground. At what angle $\theta$ is the sun elevated above the horizon?

Accepted Answer

A)  33.7   
B)  48.2   
C)  41.8   
D)  65.1   
E)  Can't be found; not enough information. 
A)  33.7   
B)  48.2   
C)  41.8   
D)  65.1   
E)  Can't be found; not enough information.

Question 6

What does the prefix kilo- stand for?

Accepted Answer

The answer of What does the prefix kilo- stand for?...

Question 7

Which of the following is a microsecond?

Accepted Answer

A)  1000 s 
B)  10-9 s 
C)  106 s 
D)  109 s 
E)  10-6 s 
A)  1000 s 
B)  10-9 s 
C)  106 s 
D)  109 s 
E)  10-6 s

Question 8

The formula mg = kx describes a spring that is stretched by hanging an object on it. The constant k is called the spring constant. What are its units?

Accepted Answer

A)  s/m kg 
B)  N m 
C)  m s2/kg 
D)  kg s2  
E)  kg/s2  
A)  s/m kg 
B)  N m 
C)  m s2/kg 
D)  kg s2  
E)  kg/s2

Question 9

Determine the number of significant figures in 0.055 cm.

Accepted Answer

The answer of Determine the number of significant figures in...

Question 10

What is the conversion factor between km/h and m/s?

Accepted Answer

A)  16.7 m/s 
B)  36.0 m/s 
C)  0.0278 m/s 
D)  0.278 m/s 
E)  3.60 m/s 
A)  16.7 m/s 
B)  36.0 m/s 
C)  0.0278 m/s 
D)  0.278 m/s 
E)  3.60 m/s

Question 11

What does the prefix milli- stand for?

Accepted Answer

The answer of What does the prefix milli- stand for?...

Question 12

The SI unit of time, the second, is currently defined by

Accepted Answer

A)  the rotation period of the Earth. 
B)  the motion of the Earth in orbit. 
C)  a standard clock at the International Bureau of Weights and Measures in France. 
D)  a duration of an atomic clock. 
E)  the time required for light to travel 1/299,792,458 of a meter. 
A)  the rotation period of the Earth. 
B)  the motion of the Earth in orbit. 
C)  a standard clock at the International Bureau of Weights and Measures in France. 
D)  a duration of an atomic clock. 
E)  the time required for light to travel 1/299,792,458 of a meter.

Question 13

What does the prefix micro- stand for?

Accepted Answer

The answer of What does the prefix micro- stand for?...

Question 14

The distance d through which a beam of length L is deflected when it is subjected to a load may be described by the relationship d = RL2. What are the dimensions of the constant R?

Accepted Answer

A)  meters 
B)  (meters)2  
C)  (meters)-1  
D)  (meters)3  
E)  R is dimensionless 
A)  meters 
B)  (meters)2  
C)  (meters)-1  
D)  (meters)3  
E)  R is dimensionless

Question 15

A cubic box has sides of length 8.0 cm. What is the maximum number of pulverized spherical balls of diameter 1.5 cm that can fit inside the closed box (Vsphere = 4/3  $\pi$r3)?

Accepted Answer

Question 16

Which of the following is a unit conversion?

Accepted Answer

A)  0.062 yd = 6.2 × 10-2 yd 
B)  1000 g 
C)  1 in = 2.54 cm 
D)  106 W 
E)  10-9 s 
A)  0.062 yd = 6.2 × 10-2 yd 
B)  1000 g 
C)  1 in = 2.54 cm 
D)  106 W 
E)  10-9 s

Question 17

Wall posters are usually sold curled up in cylindrical cardboard tubes. If the length of the tube is 84.5 cm, and the diameter of the tube is 2.40 cm, what is the area of the poster, in cm2? (Assume the poster doesn't overlap itself.)

Accepted Answer

A)  203 cm2 
B)  1529 cm2 
C)  637 cm2 
D)  382 cm2 
E)  605 cm2 
A)  203 cm2 
B)  1529 cm2 
C)  637 cm2 
D)  382 cm2 
E)  605 cm2

Question 18

The position, x, of an object is given by the equation x = A + Bt +Ct2, where t refers to time. What are the dimensions of A, B, and C?

Accepted Answer

A)  time, time, time 
B)  distance, distance, distance 
C)  distance, time, time2 
D)  distance/time, distance/ time2, distance/ time3 
E)  distance, distance/time, distance/ time2 
A)  time, time, time 
B)  distance, distance, distance 
C)  distance, time, time2 
D)  distance/time, distance/ time2, distance/ time3 
E)  distance, distance/time, distance/ time2

Question 19

A thick-walled metal pipe of length 20 cm has an inside diameter of 2.0 cm and an outside diameter of 2.4 cm. What is the total surface area of the pipe, counting the ends?

Accepted Answer

The answer of A thick-walled metal pipe of length 20...

Question 20

Which system of units is NOT metric?

Accepted Answer

A)  cgs 
B)  mks 
C)  SI 
D)  fps 
E)  none of the given choices 
A)  cgs 
B)  mks 
C)  SI 
D)  fps 
E)  none of the given choices

Exam 1: Measurement and Problem Solving

The SI prefix for 10-9 is

All of the following are base units of the SI system except the

Consider a human heart rate of 80 beats per minute. If someone's heart beats at that rate over a 70-yr lifetime, how many times would it beat?

Using dimensional analysis, which one of the following equations is dimensionally correct? ( a m/s2, v 11eea3c8_3c6e_43c1_97f4_2b5c4d7bd7c7_TB9720_11 m/s, x 11eea3c8_3c6e_43c1_97f4_2b5c4d7bd7c7_TB9720_11 m , t 11eea3c8_3c6e_43c1_97f4_2b5c4d7bd7c7_TB9720_11 s)

A 400-m tall tower casts a 600-m long shadow over level ground. At what angle θ\thetaθ is the sun elevated above the horizon?

What does the prefix kilo- stand for?

Which of the following is a microsecond?

The formula mg = kx describes a spring that is stretched by hanging an object on it. The constant k is called the spring constant. What are its units?

Determine the number of significant figures in 0.055 cm.

What is the conversion factor between km/h and m/s?

What does the prefix milli- stand for?

The SI unit of time, the second, is currently defined by

What does the prefix micro- stand for?

The distance d through which a beam of length L is deflected when it is subjected to a load may be described by the relationship d = RL2. What are the dimensions of the constant R?

A cubic box has sides of length 8.0 cm. What is the maximum number of pulverized spherical balls of diameter 1.5 cm that can fit inside the closed box (Vsphere = 4/3 π\piπ r3)?

Which of the following is a unit conversion?

Wall posters are usually sold curled up in cylindrical cardboard tubes. If the length of the tube is 84.5 cm, and the diameter of the tube is 2.40 cm, what is the area of the poster, in cm2? (Assume the poster doesn't overlap itself.)

The position, x, of an object is given by the equation x = A + Bt +Ct2, where t refers to time. What are the dimensions of A, B, and C?

A thick-walled metal pipe of length 20 cm has an inside diameter of 2.0 cm and an outside diameter of 2.4 cm. What is the total surface area of the pipe, counting the ends?

Which system of units is NOT metric?

Kinematics: Description of Motion

Motion in Two Dimensions

Force and Motion

Work and Energy

Linear Momentum and Collisions

Circular Motion and Gravitation

Rotational Motion and Equilibrium

Solids and Fluids

Temperature and Kinetic Theory

Heat

Thermodynamics

Vibrations and Waves

Sound

Electric Charge, Forces, and Fields

Electric Potential, Energy, and Capacitance

Electric Current and Resistance

Basic Electric Circuits

Magnetism

Electromagnetic Induction and Waves

AC Circuits

Reflection and Refraction of Light

Mirrors and Lenses

Physical Optics: The Wave Nature of Light

Vision and Optical Instruments

Relativity

Quantum Physics

Quantum Mechanics and Atomic Physics

The Nucleus

Nuclear Reactions and Elementary Particles

Filters

The SI prefix for 10^-9 is

Using dimensional analysis, which one of the following equations is dimensionally correct? ( a m/s², v 11eea3c8_3c6e_43c1_97f4_2b5c4d7bd7c7_TB9720_11 m/s, x 11eea3c8_3c6e_43c1_97f4_2b5c4d7bd7c7_TB9720_11 m , t 11eea3c8_3c6e_43c1_97f4_2b5c4d7bd7c7_TB9720_11 s)

A 400-m tall tower casts a 600-m long shadow over level ground. At what angle $\theta$ is the sun elevated above the horizon?

The distance d through which a beam of length L is deflected when it is subjected to a load may be described by the relationship d = RL². What are the dimensions of the constant R?

A cubic box has sides of length 8.0 cm. What is the maximum number of pulverized spherical balls of diameter 1.5 cm that can fit inside the closed box (V_sphere = 4/3 $\pi$ r³)?

Wall posters are usually sold curled up in cylindrical cardboard tubes. If the length of the tube is 84.5 cm, and the diameter of the tube is 2.40 cm, what is the area of the poster, in cm²? (Assume the poster doesn't overlap itself.)

The position, x, of an object is given by the equation x = A + Bt +Ct², where t refers to time. What are the dimensions of A, B, and C?