Chapter 2

Question 1

In physics, which of the following is not a fundamental standard of measurement

Answer 1

speed

Question 2

In physics, which of the following is a fundamental unit, (not a derived unit):

Answer 2

centimeters

Question 3

If a 50-kilogram body is moved from outer space down to the earth, its mass will

Answer 3

remain the same

Question 4

The mass of a small object, such as a pencil or pen, would be best measured using

Answer 4

grams

Question 5

The interactions between all matter in the universe are governed by ____ different forces

Answer 5

4

Question 6

Anything that exerts a “push” or a “pull” such that it can cause a change in the motion of another body may be described as

Answer 6

Force

Question 7

To hold together the nucleus of an atom, the strong nuclear force must overwhelm

Answer 7

electrical force

Question 8

One-thousandth of a millimeter would be a(n):

Answer 8

micron or micrometer

Question 9

A million volts would be one:

Answer 9

Megavolt

Question 10

Which of the following is about the width of your smallest fingernail?

Answer 10

one centimeter

Question 11

Which unit is equivalent to one 10-billionth of a meter?

Answer 11

the angstrom

Question 12

The wavelength of x-rays may be best described as:

Answer 12

a fraction of an angstrom

Question 13

Approximately how many centimeters is the standard distance of the x-ray tube from the Bucky when performing tabletop radiographic procedures?

Answer 13

100cm