NATURAL SCIENCE FINAL EXAM REVIEW QUESTIONS WITH COMPLETE SOLUTIONS

NATURAL SCIENCE FINAL EXAM
REVIEW QUESTIONS WITH COMPLETE
SOLUTIONS

Which one of the following cannot vary?

a) Speed of light in a vacuum.

b) The speed of light is relative to the observer's frame of reference.

c) The frequency of light.

d) The wavelength of light.

e) Every observer sees the speed of light differently. - ANSWER-a) Speed of light in a
vacuum.

If we are traveling at 0.9 times the speed of light and we turn on a flashlight pointed
toward the front of the spaceship, how fast is the light moving from the flashlight?



a) 0.9 times the speed of light

b) 1.9 times the speed of light

c) No one really knows what will happen under these circumstances.

d) 0.1 times the speed of light

e) the speed of light - ANSWER-e) the speed of light

According to the theory of relativity, as the speed of light is approached,



1) time slows down and approaches zero.

2) time speeds up and approaches infinity.

3) distance shrinks and approaches zero.

, a) 1

b) 2

c) 1 & 2

d)1& 3

e) nothing happens. - ANSWER-d)1& 3

The fundamental building block for all matter, which is the smallest representative
sample of a substance that maintains chemical identity, is called



a) an atom.

b) an element.

c) a molecule.

d) an electron.

e) a chemical compound. - ANSWER-a) an atom.

Materials made from a single type of atom that cannot be broken down any further are
called



a) atoms.

b) elements.

c) molecules.

d) solutions.

e) compounds. - ANSWER-b) elements.

19) When two or more covalently bonded atoms combine chemically this forms the
basic constituent of many different kinds of material, which is called