Question 1

0.0001776 can also be expressed as

Accepted Answer

A)  1.776 × 10-3. 
B)  1.776 × 10-4. 
C)  17.72 × 104. 
D)  1772 × 105. 
E)  177.2 × 107. 
A)  1.776 × 10-3. 
B)  1.776 × 10-4. 
C)  17.72 × 104. 
D)  1772 × 105. 
E)  177.2 × 107. B

Question 2

The Hope Diamond weighs 44.5 carats. There are 200 mg per carat. How many kilograms does the Hope Diamond weigh?

Accepted Answer

A)  0.000890 kg 
B)  0.00890 kg 
C)  0.0890 kg 
D)  0.890 kg 
E)  8.90 kg 
A)  0.000890 kg 
B)  0.00890 kg 
C)  0.0890 kg 
D)  0.890 kg 
E)  8.90 kg B

Question 3

There are 2.00 dry pints to 1.00 dry quart, 8.00 dry quarts to 1.00 peck, 4.00 pecks to 1.00 bushel. A farmer wants to pick enough berries to fill 40,000 pint containers. How many bushels of berries does the farmer need?

Accepted Answer

625 bushels

Question 4

A waffle cone has a diameter of 2.5 inches and is 5.5 inches tall. What is the volume of the waffle cone in cubic centimeters?

Accepted Answer

A)  58 cubic cm 
B)  150 cubic cm 
C)  240 cubic cm 
D)  440 cubic cm 
E)  620 cubic cm 
A)  58 cubic cm 
B)  150 cubic cm 
C)  240 cubic cm 
D)  440 cubic cm 
E)  620 cubic cm

Question 5

A dog has three puppies. Spot weighs 12 ounces. Rascal weighs 9.5 ounces. Socks weighs 10.2 ounces. What is the total weight of the litter?

Accepted Answer

A)  31.7 ounces 
B)  31 ounces 
C)  32 ounces 
D)  30 ounces 
E)  31.70 ounces 
A)  31.7 ounces 
B)  31 ounces 
C)  32 ounces 
D)  30 ounces 
E)  31.70 ounces

Question 6

What are the dimensions of energy?

Accepted Answer

The answer of What are the dimensions of energy?...

Question 7

When adding several quantities, the number of decimal places in the result must always be

Accepted Answer

A)  larger than the number of decimal places in the most accurate of the quantities. 
B)  equal to the number of decimal places in the most accurate of the quantities. 
C)  equal to the average number of significant digits in the most and least accurate of the quantities. 
D)  equal to the number of decimal places in the least accurate of the quantities. 
E)  smaller than the number of decimal places in the least accurate of the quantities. 
A)  larger than the number of decimal places in the most accurate of the quantities. 
B)  equal to the number of decimal places in the most accurate of the quantities. 
C)  equal to the average number of significant digits in the most and least accurate of the quantities. 
D)  equal to the number of decimal places in the least accurate of the quantities. 
E)  smaller than the number of decimal places in the least accurate of the quantities.

Question 8

In the year 2000, the average size of a transistor in a microprocessor was 250 nanometers. A human hair has a diameter of 70 microns (micrometers). How many transistors fit across a human hair?

Accepted Answer

A)  280 
B)  28 
C)  2800 
D)  2.8 
E)  0.28 
A)  280 
B)  28 
C)  2800 
D)  2.8 
E)  0.28

Question 9

Four students measure the mass of an object, each using a different scale. They record their results as follows:
  Which student used the most precise scale?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 10

Four students measure the mass of an object, each using a different scale. They record their results as follows:
  Which student used the least precise scale?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 11

What is the sum of 1.53 + 2.786 + 3.3?

Accepted Answer

A)  8 
B)  7.6 
C)  7.62 
D)  7.616 
E)  7.6160 
A)  8 
B)  7.6 
C)  7.62 
D)  7.616 
E)  7.6160

Question 12

In fluid flow, the character of the flow can be determined by the Reynolds number, Re, which is a dimensionless quantity that can be expressed in terms of the speed v of the fluid, the density ρ (mass per unit volume) of the fluid, the viscosity η of the fluid, and a length D which is characteristic to the flow. Re can be expressed in the form Re = kvηaρbDc, where k, a, b, and c are dimensionless constants. What must be the values of b, c, and d? The dimensions of viscosity are [M]/[L][T].

Accepted Answer

A)  b = 1, c = -1, d = 1 
B)  b = 1, c = -1, d = -1 
C)  b = -1, c = 1, d = 1 
D)  b = -1, c = 1, d = -1 
E)  b = -1, c = -1, d = 1 
A)  b = 1, c = -1, d = 1 
B)  b = 1, c = -1, d = -1 
C)  b = -1, c = 1, d = 1 
D)  b = -1, c = 1, d = -1 
E)  b = -1, c = -1, d = 1

Question 13

Jane has a mass of 50 kilograms. Express her mass in grams and hectograms.

Accepted Answer

A)  50,000 g; 5,000 hg 
B)  500,000 g; 500 hg 
C)  500,000 g; 5,000 hg 
D)  50,000 g; 500 hg 
E)  50,000 g; 5,000 kg 
A)  50,000 g; 5,000 hg 
B)  500,000 g; 500 hg 
C)  500,000 g; 5,000 hg 
D)  50,000 g; 500 hg 
E)  50,000 g; 5,000 kg

Question 14

When referring to the "cgs" system, what does the "c", the "g", and the "s" stand for?

Accepted Answer

centimeter

Question 15

The speed v of sound waves in a gas can be expressed in terms of the pressure p and the density ρ (mass per unit volume) of the gas, as v = apbρc, where a, b, and c, are dimensionless constants. The dimensions of pressure are [M]/[L][T]2. What must be the values of b and c?

Accepted Answer

Question 16

What is the conversion factor between cm2 and m2?

Accepted Answer

A)  0.01 m2/ cm2 
B)  0.0001 m2/cm2 
C)  10 m2/cm2 
D)  100 m2/cm2 
E)  10000 m2/cm2 
A)  0.01 m2/ cm2 
B)  0.0001 m2/cm2 
C)  10 m2/cm2 
D)  100 m2/cm2 
E)  10000 m2/cm2

Question 17

The king's chamber of the great pyramid is 10.43 meters long, 5.21 meters wide, and 5.82 meters high. What is the volume of the chamber in cubic feet?

Accepted Answer

A)  316 cubic feet 
B)  3,720 cubic feet 
C)  6,530 cubic feet 
D)  11,200 cubic feet 
E)  13,200 cubic feet 
A)  316 cubic feet 
B)  3,720 cubic feet 
C)  6,530 cubic feet 
D)  11,200 cubic feet 
E)  13,200 cubic feet

Question 18

The period of a pendulum is the time it takes the pendulum to swing back and forth once. If the only dimensional quantities that the period depends on are the acceleration of gravity, g, and the length of the pendulum, L, what combination of g and L must the period be proportional to? Acceleration has dimensions of [L][T-2].

Accepted Answer

A)  g/L 
B)  gL2 
C)  gL 
D)    
E)    
A)  g/L 
B)  gL2 
C)  gL 
D)    
E)

Question 19

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

Accepted Answer

A)  7.72 × 10-5 m/s 
B)  2.78 × 10-1 m/s 
C)  1.30 × 104 m/s 
D)  3.60 m/s 
E)  16.7 m/s 
A)  7.72 × 10-5 m/s 
B)  2.78 × 10-1 m/s 
C)  1.30 × 104 m/s 
D)  3.60 m/s 
E)  16.7 m/s

Question 20

What is 34 + ( 3) × (1.2465) written with the correct number of significant figures?

Accepted Answer

A)  37.7 
B)  37.74 
C)  4 × 101 
D)  38 
E)  37.7395 
A)  37.7 
B)  37.74 
C)  4 × 101 
D)  38 
E)  37.7395

Exam 1: Introduction to Physics

0.0001776 can also be expressed as

The Hope Diamond weighs 44.5 carats. There are 200 mg per carat. How many kilograms does the Hope Diamond weigh?

There are 2.00 dry pints to 1.00 dry quart, 8.00 dry quarts to 1.00 peck, 4.00 pecks to 1.00 bushel. A farmer wants to pick enough berries to fill 40,000 pint containers. How many bushels of berries does the farmer need?

A waffle cone has a diameter of 2.5 inches and is 5.5 inches tall. What is the volume of the waffle cone in cubic centimeters?

A dog has three puppies. Spot weighs 12 ounces. Rascal weighs 9.5 ounces. Socks weighs 10.2 ounces. What is the total weight of the litter?

What are the dimensions of energy?

When adding several quantities, the number of decimal places in the result must always be

In the year 2000, the average size of a transistor in a microprocessor was 250 nanometers. A human hair has a diameter of 70 microns (micrometers). How many transistors fit across a human hair?

Four students measure the mass of an object, each using a different scale. They record their results as follows: Which student used the most precise scale?

Four students measure the mass of an object, each using a different scale. They record their results as follows: Which student used the least precise scale?

What is the sum of 1.53 + 2.786 + 3.3?

Jane has a mass of 50 kilograms. Express her mass in grams and hectograms.

When referring to the "cgs" system, what does the "c", the "g", and the "s" stand for?

The speed v of sound waves in a gas can be expressed in terms of the pressure p and the density ρ (mass per unit volume) of the gas, as v = apbρc, where a, b, and c, are dimensionless constants. The dimensions of pressure are [M]/[L][T]2. What must be the values of b and c?

What is the conversion factor between cm2 and m2?

The king's chamber of the great pyramid is 10.43 meters long, 5.21 meters wide, and 5.82 meters high. What is the volume of the chamber in cubic feet?

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

What is 34 + ( 3) × (1.2465) written with the correct number of significant figures?

One-Dimensional Kinematics

Vectors in Physics

Two-Dimensional Kinematics

Newtons Laws of Motion

Applications of Newtons Laws

Work and Kinetic Energy

Potential Energy and Conservation of Energy

Linear Momentum and Collisions

Rotational Kinematics and Energy

Rotational Dynamics and Static Equilibrium

Gravity

Oscillations About Equilibrium

Waves and Sound

Fluids

Temperature and Heat

Phases and Phase Changes

The Laws of Thermodynamics

Electric Charges, Forces, and Fields

Electric Potential and Electric Potential Energy

Electric Current and Direct-Current Circuits

Magnetism

Magnetic Flux and Faradays Law of Induction

Alternating-Current Circuits

Electromagnetic Waves

Geometrical Optics

Optical Instruments

Physical Optics: Interference and Diffraction

Relativity

Quantum Physics

Atomic Physics

Nuclear Physics and Nuclear Radiation

Filters

The speed v of sound waves in a gas can be expressed in terms of the pressure p and the density ρ (mass per unit volume) of the gas, as v = ap^bρ^c, where a, b, and c, are dimensionless constants. The dimensions of pressure are [M]/[L][T]². What must be the values of b and c?

What is the conversion factor between cm² and m²?