Question 1

What is the difference between 103.5 and 102.24 expressed to the correct number of significant figures?

Accepted Answer

A) 1.3 
B) 1.26 
C) 1.260 
D) 1.2600 
A) 1.3 
B) 1.26 
C) 1.260 
D) 1.2600

Question 2

A volume of 100 mL is equivalent to which one of the following volumes?

Accepted Answer

A) 1 kL 
B) 10-6 μL 
C) 0.1 L 
D) 0.01 ML 
A) 1 kL 
B) 10-6 μL 
C) 0.1 L 
D) 0.01 ML

Question 3

A reasonable estimate for the mass of a typical new-born baby is

Accepted Answer

A) 1 kg. 
B) 3 kg. 
C) 10 kg. 
D) 20 kg. 
A) 1 kg. 
B) 3 kg. 
C) 10 kg. 
D) 20 kg.

Question 4

An oak tree was planted 22 years Ago.How many seconds does this correspond to? (Do not take leap days into account. )

Accepted Answer

A) 6.9 × 108 
B) 1.2 × 107 
C) 2.9 × 107 
D) 2.8 × 108 
A) 6.9 × 108 
B) 1.2 × 107 
C) 2.9 × 107 
D) 2.8 × 108

Question 5

How many significant figures are in the number 0.010?

Accepted Answer

A) four 
B) three 
C) two 
D) one 
A) four 
B) three 
C) two 
D) one

Question 6

There are 640 acres in a square mile,and 5280 feet in 1.00 mile.What is the length in feet (to the nearest foot)of the side of a square having an area of 1.00 acre?

Accepted Answer

A) 660 feet 
B) 209 feet 
C) 165 feet 
D) 412 feet 
E) 435 feet 
A) 660 feet 
B) 209 feet 
C) 165 feet 
D) 412 feet 
E) 435 feet

Question 7

A football field is 120 yd long and 50 yd wide.What is the area of the football field,in square meters,given that 1.0 yd = 91.44 cm?

Accepted Answer

A) 2.4 × 103 m2 
B) 3.7 × 103 m2 
C) 4.2 × 103 m2 
D) 5.0 × 103 m2 
A) 2.4 × 103 m2 
B) 3.7 × 103 m2 
C) 4.2 × 103 m2 
D) 5.0 × 103 m2

Question 8

Estimate the number of times the earth will rotate on its axis during a human's lifetime.

Accepted Answer

A) 3 × 104 
B) 3 × 105 
C) 3 × 106 
D) 3 × 107 
E) 3 × 108 
A) 3 × 104 
B) 3 × 105 
C) 3 × 106 
D) 3 × 107 
E) 3 × 108

Question 9

What is the sum of 1.53 + 2.786 + 3.3 expressed to the correct number of significant figures?

Accepted Answer

A) 7 
B) 7.6 
C) 7.62 
D) 7.616 
E) 7.6160 
A) 7 
B) 7.6 
C) 7.62 
D) 7.616 
E) 7.6160

Question 10

A jogger has a mass of 50 kg.Express her mass in grams and micrograms (µg).

Accepted Answer

A) 50,000 g;5 × 106 µg 
B) 500,000 g;500 × 106 µg 
C) 500,000 g;5000 µg 
D) 50,000 g;5 × 1010 µg 
E) 50,000 g;50,000 µg 
A) 50,000 g;5 × 106 µg 
B) 500,000 g;500 × 106 µg 
C) 500,000 g;5000 µg 
D) 50,000 g;5 × 1010 µg 
E) 50,000 g;50,000 µg

Question 11

The mass of Mars,6.40 × 1023 kg,is about one-tenth that of Earth,and its radius,3395 km,is about half that of Earth.What is the mean density (mass divided by volume)of Mars in kilograms per cubic meter?

Accepted Answer

A) 9.76 × 102 kg/m3 
B) 1.95 × 103 kg/m3 
C) 3.90 × 103 kg/m3 
D) 7.81 × 103 kg/m3 
A) 9.76 × 102 kg/m3 
B) 1.95 × 103 kg/m3 
C) 3.90 × 103 kg/m3 
D) 7.81 × 103 kg/m3

Question 12

An area of 1.00 × 102 cm2 is how many square meters?

Accepted Answer

A) 1.00 m2 
B) 1.00 × 102 m2 
C) 1.00 × 10-2 m2 
D) 1.00 × 104 m2 
E) 1.00 × 10-3 m2 
A) 1.00 m2 
B) 1.00 × 102 m2 
C) 1.00 × 10-2 m2 
D) 1.00 × 104 m2 
E) 1.00 × 10-3 m2

Question 13

The last page of a book is numbered 764.The book is 3.0 cm thick,not including its covers.What is the average thickness (in centimeters)of a page in the book,rounded to the proper number of significant figures?

Accepted Answer

A) 0.0039 cm 
B) 0.072 cm 
C) 0.0079 cm 
D) 0.00393 cm 
E) 0.00785 cm 
A) 0.0039 cm 
B) 0.072 cm 
C) 0.0079 cm 
D) 0.00393 cm 
E) 0.00785 cm

Question 14

The wavelength of the light from a certain laser is 0.66 microns,  Where 1 micron=1.0x10-6m.  What is this wavelength in nanometers? (1 nm = 10-9m)

Accepted Answer

A) 6.6 × 102 nm 
B) 6.6 × 103 nm 
C) 6.6 × 101 nm 
D) 6.6 × 104 nm 
A) 6.6 × 102 nm 
B) 6.6 × 103 nm 
C) 6.6 × 101 nm 
D) 6.6 × 104 nm

Question 15

Add 1,299g and 45.1kg, And express your answer in milligrams (mg)to the correct number of significant figures.

Accepted Answer

A) 4.64 × 107 mg 
B) 4.64 × 104 mg 
C) 4.64 × 105 mg 
D) 4.64 × 106 mg 
A) 4.64 × 107 mg 
B) 4.64 × 104 mg 
C) 4.64 × 105 mg 
D) 4.64 × 106 mg

Question 16

A reasonable estimate for the mass of a typical female college student is

Accepted Answer

A) 20 kg. 
B) 50 kg. 
C) 150 kg. 
D) 200 kg. 
A) 20 kg. 
B) 50 kg. 
C) 150 kg. 
D) 200 kg.

Question 17

Estimate the number of times an average person's heart beats in a lifetime.Assume the average heart rate is  
And a life span of 75 years.

Accepted Answer

A) 3 × 109 beats 
B) 3 × 108 beats 
C) 3 × 1010 beats 
D) 3 × 107 beats 
A) 3 × 109 beats 
B) 3 × 108 beats 
C) 3 × 1010 beats 
D) 3 × 107 beats

Question 18

A certain CD-ROM. Disk can store 600 megabytes of information.If an average word requires 9.0 bytes of storage,how many words can be stored on one disk?

Accepted Answer

A) 6.7 × 107 words 
B) 5.4 × 109 words 
C) 2.1 × 107 words 
D) 2.0 × 109 words 
A) 6.7 × 107 words 
B) 5.4 × 109 words 
C) 2.1 × 107 words 
D) 2.0 × 109 words

Question 19

A reasonable estimate for the duration of a typical physics lecture is

Accepted Answer

A) 600 s. 
B) 1000 s. 
C) 3500 s. 
D) 10,000 s. 
A) 600 s. 
B) 1000 s. 
C) 3500 s. 
D) 10,000 s.

Question 20

A person on a diet loses 1.6kg. In a week.How many micrograms per second (μg/s)are lost?

Accepted Answer

A) 2.6 × 103 μg/s 
B) 1.6 × 105 μg/s 
C) 44 μg/s 
D) 6.4 × 104 μg/s 
A) 2.6 × 103 μg/s 
B) 1.6 × 105 μg/s 
C) 44 μg/s 
D) 6.4 × 104 μg/s

Exam 1: Introduction to Physics

What is the difference between 103.5 and 102.24 expressed to the correct number of significant figures?

A volume of 100 mL is equivalent to which one of the following volumes?

A reasonable estimate for the mass of a typical new-born baby is

An oak tree was planted 22 years Ago.How many seconds does this correspond to? (Do not take leap days into account. )

How many significant figures are in the number 0.010?

There are 640 acres in a square mile,and 5280 feet in 1.00 mile.What is the length in feet (to the nearest foot)of the side of a square having an area of 1.00 acre?

A football field is 120 yd long and 50 yd wide.What is the area of the football field,in square meters,given that 1.0 yd = 91.44 cm?

Estimate the number of times the earth will rotate on its axis during a human's lifetime.

What is the sum of 1.53 + 2.786 + 3.3 expressed to the correct number of significant figures?

A jogger has a mass of 50 kg.Express her mass in grams and micrograms (µg).

The mass of Mars,6.40 × 1023 kg,is about one-tenth that of Earth,and its radius,3395 km,is about half that of Earth.What is the mean density (mass divided by volume)of Mars in kilograms per cubic meter?

An area of 1.00 × 102 cm2 is how many square meters?

The last page of a book is numbered 764.The book is 3.0 cm thick,not including its covers.What is the average thickness (in centimeters)of a page in the book,rounded to the proper number of significant figures?

The wavelength of the light from a certain laser is 0.66 microns, Where 1 micron=1.0x10-6m. What is this wavelength in nanometers? (1 nm = 10-9m)

Add 1,299g and 45.1kg, And express your answer in milligrams (mg)to the correct number of significant figures.

A reasonable estimate for the mass of a typical female college student is

Estimate the number of times an average person's heart beats in a lifetime.Assume the average heart rate is And a life span of 75 years.

A certain CD-ROM. Disk can store 600 megabytes of information.If an average word requires 9.0 bytes of storage,how many words can be stored on one disk?

A reasonable estimate for the duration of a typical physics lecture is

A person on a diet loses 1.6kg. In a week.How many micrograms per second (μg/s)are lost?

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

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 mass of Mars,6.40 × 10²³ kg,is about one-tenth that of Earth,and its radius,3395 km,is about half that of Earth.What is the mean density (mass divided by volume)of Mars in kilograms per cubic meter?

An area of 1.00 × 10² cm² is how many square meters?

The wavelength of the light from a certain laser is 0.66 microns, Where 1 micron=1.0x10^-6m. What is this wavelength in nanometers? (1 nm = 10^-9m)