D) S = 1/T
Answer: A
Difficulty: 2 Medium
Topic: The Role of Measurement and Mathematics in Physics
Chapter: 01 Physics, the Fundamental Science
Type: Conceptual
Accessibility: Keyboard Navigation
10) Physics is considered the "Fundamental Science" because
A) if a person understands physics, he or she does not need to know anything about other sciences.
B) physics offers the only exact explanations of how things work; other sciences only provide approximate answers.
C) it makes the most use of mathematics.
D) the ideas and concepts of physics are an important part of the foundation of other sciences.
Answer: D
Difficulty: 1 Easy
Topic: The Scope of Physics
Chapter: 01 Physics, the Fundamental Science
Type: Definition
Accessibility: Keyboard Navigation
11) The development of physics concepts depends heavily on measurements because
A) measurements are needed to prove ideas true or false.
B) without measurements, we would not know what to explain with physics.
C) measurements involve mathematics.
D) physicists like numbers more than words.
Answer: A
Difficulty: 1 Easy
Topic: The Role of Measurement and Mathematics in Physics
Chapter: 01 Physics, the Fundamental Science
Type: Definition
Accessibility: Keyboard Navigation
12) The study of everyday phenomena allows us to
A) develop an understanding of the concepts used to describe more abstract concepts.
B) develop an appreciation of the physical universe around us.
C) develop our intuition and adjust our "common sense" to understand these phenomena.
D) All of these choices are correct
Answer: D
Difficulty: 1 Easy
Topic: Physics and Everyday Phenomena
Chapter: 01 Physics, the Fundamental Science
Type: Conceptual
Accessibility: Keyboard Navigation
13) A certain parcel of real estate is sold for 7.0 Mega dollars. What is the correct scientific notation for this selling price?
A) 7.0 × 106 dollars
B) 7 × 106 dollars
C) 70 × 105 dollars
D) 10 × 107 dollars
Answer: A
Difficulty: 2 Medium
Topic: The Role of Measurement and Mathematics in Physics
Chapter: 01 Physics, the Fundamental Science
Type: Definition
Accessibility: Keyboard Navigation
14) If a car travels at a constant speed, the distance the car travels in a certain time can be found using the relation d = st where d represents distance, s speed, and t time. This relationship can be expressed in words as
A) distance equals speed minus time.
B) multiply speed and time to obtain the distance traveled.
C) distance equals speed divided by time.
D) speed is the reciprocal of time and the inverse of distance.
Answer: B
Difficulty: 1 Easy
Topic: The Role of Measurement and Mathematics in Physics
Chapter: 01 Physics, the Fundamental Science
Type: Conceptual
Accessibility: Keyboard Navigation
15) If 2 people can knit a total of 12 socks per hour, how many socks can five people knit in an 8 hour work day?
A) 200
B) 240
C) 120
D) 36
Answer: B
Difficulty: 3 Hard
Topic: The Role of Measurement and Mathematics in Physics
Chapter: 01 Physics, the Fundamental Science
Type: Numerical
Accessibility: Keyboard Navigation
16) One inch is defined as 2.54 centimeters. The correct expression for a one-inch length, expressed in meters, is
A) 2.54 × 102 meters.
B) 2.54 × 101 meters.
C) 2.54 × 10-2 meters.
D) 2.54 × 10-1 meters.
Answer: C
Difficulty: 2 Medium
Topic: The Role of Measurement and Mathematics in Physics
Chapter: 01 Physics, the Fundamental Science
Type: Numerical
Accessibility: Keyboard Navigation
17) It's well known that lightning strikes tall objects more frequently than short objects. Which of the following explanations of this phenomenon could be checked for validity?
A) Tall objects always contain more structural steel than short objects
B) Tall objects are always pointed at the top
C) Short objects do not attract lightning because they do not conduct electricity
D) All of these choices could be checked for validity
Answer: D
Difficulty: 2 Medium
Topic: The Scientific Enterprise
Chapter: 01 Physics, the Fundamental Science