Question 1

State the general rule for significant figures when adding or subtracting numbers.

Accepted Answer

The final result of an additio

Question 2

What is the difference between 105.3 and 101.12?

Accepted Answer

A) 4 
B) 4.2 
C) 4.18 
D) 4.180 
E) 4.1800 
A) 4 
B) 4.2 
C) 4.18 
D) 4.180 
E) 4.1800

Question 3

Approximately how many times does an average human heart beat in a year?

Accepted Answer

A) 4 × 105 
B) 4 × 106 
C) 4 × 107 
D) 4 × 108 
E) 4 × 109 
A) 4 × 105 
B) 4 × 106 
C) 4 × 107 
D) 4 × 108 
E) 4 × 109

Question 4

How many significant figures are in 10,002?

Accepted Answer

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

Question 5

How many significant figures are in 0.0067?

Accepted Answer

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

Question 6

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

Question 7

What is the sum of 1.49 + 3.212 + 1.9?

Accepted Answer

A) 7 
B) 6.6 
C) 6.60 
D) 6.602 
E) 6.6020 
A) 7 
B) 6.6 
C) 6.60 
D) 6.602 
E) 6.6020

Question 8

What is the percent uncertainty in the measurement 2.58 ± 0.15 cm?

Accepted Answer

A) 2.9% 
B) 5.8% 
C) 8.7% 
D) 12% 
E) 15% 
A) 2.9% 
B) 5.8% 
C) 8.7% 
D) 12% 
E) 15%

Question 9

What is the volume, and its approximate uncertainty, of a sphere of radius 1.96 ± 0.01 m?

Accepted Answer

A) 31.5 ± 0.1 m3  
B) 31.5 ± 0.2 m3  
C) 31.5 ± 0.3 m3  
D) 31.5 ± 0.4 m3  
E) 31.5 ± 0.5 m3  
A) 31.5 ± 0.1 m3  
B) 31.5 ± 0.2 m3  
C) 31.5 ± 0.3 m3  
D) 31.5 ± 0.4 m3  
E) 31.5 ± 0.5 m3

Question 10

A person stands 35.0 m from a flag pole. With a protractor at eye level, he finds that the angle at the top of the flag pole makes with the horizontal is 25.0 degrees. Approximately how high is the flag pole? (The distance from his feet to his eyes is 1.7 m.)

Accepted Answer

A) 10 m 
B) 20 m 
C) 30 m 
D) 50 m 
E) 80 m 
A) 10 m 
B) 20 m 
C) 30 m 
D) 50 m 
E) 80 m

Question 11

Theories are derived directly from observations.

Accepted Answer

A) True 
 B)False

Exam 1: Introduction, Measurement, Estimating

State the general rule for significant figures when adding or subtracting numbers.

What is the difference between 105.3 and 101.12?

Approximately how many times does an average human heart beat in a year?

How many significant figures are in 10,002?

How many significant figures are in 0.0067?

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?

What is the sum of 1.49 + 3.212 + 1.9?

What is the percent uncertainty in the measurement 2.58 ± 0.15 cm?

What is the volume, and its approximate uncertainty, of a sphere of radius 1.96 ± 0.01 m?

A person stands 35.0 m from a flag pole. With a protractor at eye level, he finds that the angle at the top of the flag pole makes with the horizontal is 25.0 degrees. Approximately how high is the flag pole? (The distance from his feet to his eyes is 1.7 m.)

Theories are derived directly from observations.

Describing Motion: Kinematics in One Dimension

Kinematics in Two or Three Dimensions; Vectors

Dynamics: Newtons Laws of Motion

Using Newtons Laws: Friction, Circular Motion, Drag Forces

Gravitation and Newtons6 Synthesis

Work and Energy

Conservation of Energy

Linear Momentum

Rotational Motion

Angular Momentum; General Rotation

Static Equilibrium; Elasticity and Fracture

Fluids

Oscillations

Wave Motion

Sound

Temperature, Thermal Expansion, and the Ideal Gas Law

Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

Second Law of Thermodynamics

Electric Charge and Electric Field

Gausss Law

Electric Potential

Capacitance, Dielectrics, Electric Energy Storage

Electric Currents and Resistance

Dc Circuits

Magnetism

Sources of Magnetic Field

Electromagnetic Induction and Faradays Law

Inductance, Electromagnetic Oscillations, and Ac Circuits

Maxwells Equations and Electromagnetic Waves

Light: Reflection and Refraction

Lenses and Optical Instruments

The Wave Nature of Light; Interference

Diffraction and Polarization

Special Theory of Relativity

Early Quantum Theory and Models of the Atom

Quantum Mechanics

Quantum Mechanics of Atoms

Molecules and Solids

Nuclear Physics and Radioactivity

Nuclear Energy: Efects and Uses of Radiation

Elementary Particle

Astrophysics and Cosmology

Filters

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?