Holt Physics Chapter 1

Which of the following is an area of physics that studies motion and its causes?

• Thermodynamics

• Quantum Mechanics

• Mechanics

• Optics

Listening to your favorite radio station involves which area of physics?

• Optics

• Thermodynamics

• Relativity

• Vibrations and Wave Phenomena

A baker makes a loaf of bread. Identify the area of physics that this involves.

• Optics

• Mechanics

• Thermodynamics

• Relativity

According to the scientific method, why does a physicist make observations and collect data?

• To decide which parts of a problem are important

• To ask a question

• To make an interpretation

• To solve all problems

Why do physicists use models?

• To explain the complex features of simple phenomena

• To describe all aspects of a phenomenon

• To explain the basic features of complex phenomena

• To describe all of reality

What two dimensions, in addition to mass, are commonly used by physicists to derive additional measurements?

• Length

• Width

• Time

• Area

• Mass

The symbol mm represents a

(a)  

The SI base unit used to measure mass is the

(a)  

The SI base unit for time is

• 1 day

• 1 minute

• 1 second

• 1 kilogram

A lack of precision in scientific measurements typically arises from

• limitations of the measuring instrument.

• human error

• lack of calibration

• too many significant figures.