Conceptual Physics Exam 2 Review
Questions With Correct Answers
How many different elements are there in a water molecule?
| | | | | | | | |
A) one
|
B) two
|
C) three
|
D) four |
E) none of the above - CORRECT ANSWER✔✔-B) two
| | | | | | | |
The chemical properties of matter come mostly from its
| | | | | | | | |
A) protons.
|
B) electrons.
|
C) neutrons. - CORRECT ANSWER✔✔-B) electrons
| | | | |
Compared to the mass of a hydrogen atom, the mass of an oxygen atom
| | | | | | | | | | | | |
is
| |
A) 8 times as great.
| | | |
B) 12 times as great.
| | | |
C) 16 times as great.
| | | |
,D) appreciably more than 16 times as great - CORRECT ANSWER✔✔-C)
| | | | | | | | | | |
16 times as great
| | |
The air in this room has
| | | | | |
A) mass.
|
B) weight.
|
C) energy.
|
D) all of these
| | | |
E) none of these - CORRECT ANSWER✔✔-D) all of these
| | | | | | | | |
In an electrically neutral atom, the number of protons in the nucleus is
| | | | | | | | | | | | |
balanced by an equal number of | | | | |
A) neutrons.
|
B) quarks.
|
C) orbital electrons.
| | |
D) all of these
| | |
E) none of these - CORRECT ANSWER✔✔-C) orbital electrons
| | | | | | | |
Which of the following is not a mixture?
| | | | | | | |
A) salt and water
| | |
B) cake
|
C) air
|
, D) beach sand
| |
E) None. All of the above choices are mixtures - CORRECT ANSWER✔✔-
| | | | | | | | | | |
E) None. All are mixtures.
| | | |
Which of the following is not a compound?
| | | | | | | |
A) air
|
B) ammonia
|
C) water
|
D) salt
|
E) All are compounds - CORRECT ANSWER✔✔-A) air
| | | | | | |
Which of the following statements is true?
| | | | | |
A) An atom is the smallest particle known to exist.
| | | | | | | | |
B) There are only little over 100 different kinds of atoms that combine to
| | | | | | | | | | | | |
form all substances.
| | |
C) There are thousands of different kinds of atoms that account for a
| | | | | | | | | | | | |
wide variety of substances.
| | |
D) A large atom can be photographed with the aid of an ordinary
| | | | | | | | | | | | |
microscope.
E) None of these statements are true - CORRECT ANSWER✔✔-B) There
| | | | | | | | | | |
are only little over 100 different kinds of atoms that combine to form all
| | | | | | | | | | | | | |
substances.
Questions With Correct Answers
How many different elements are there in a water molecule?
| | | | | | | | |
A) one
|
B) two
|
C) three
|
D) four |
E) none of the above - CORRECT ANSWER✔✔-B) two
| | | | | | | |
The chemical properties of matter come mostly from its
| | | | | | | | |
A) protons.
|
B) electrons.
|
C) neutrons. - CORRECT ANSWER✔✔-B) electrons
| | | | |
Compared to the mass of a hydrogen atom, the mass of an oxygen atom
| | | | | | | | | | | | |
is
| |
A) 8 times as great.
| | | |
B) 12 times as great.
| | | |
C) 16 times as great.
| | | |
,D) appreciably more than 16 times as great - CORRECT ANSWER✔✔-C)
| | | | | | | | | | |
16 times as great
| | |
The air in this room has
| | | | | |
A) mass.
|
B) weight.
|
C) energy.
|
D) all of these
| | | |
E) none of these - CORRECT ANSWER✔✔-D) all of these
| | | | | | | | |
In an electrically neutral atom, the number of protons in the nucleus is
| | | | | | | | | | | | |
balanced by an equal number of | | | | |
A) neutrons.
|
B) quarks.
|
C) orbital electrons.
| | |
D) all of these
| | |
E) none of these - CORRECT ANSWER✔✔-C) orbital electrons
| | | | | | | |
Which of the following is not a mixture?
| | | | | | | |
A) salt and water
| | |
B) cake
|
C) air
|
, D) beach sand
| |
E) None. All of the above choices are mixtures - CORRECT ANSWER✔✔-
| | | | | | | | | | |
E) None. All are mixtures.
| | | |
Which of the following is not a compound?
| | | | | | | |
A) air
|
B) ammonia
|
C) water
|
D) salt
|
E) All are compounds - CORRECT ANSWER✔✔-A) air
| | | | | | |
Which of the following statements is true?
| | | | | |
A) An atom is the smallest particle known to exist.
| | | | | | | | |
B) There are only little over 100 different kinds of atoms that combine to
| | | | | | | | | | | | |
form all substances.
| | |
C) There are thousands of different kinds of atoms that account for a
| | | | | | | | | | | | |
wide variety of substances.
| | |
D) A large atom can be photographed with the aid of an ordinary
| | | | | | | | | | | | |
microscope.
E) None of these statements are true - CORRECT ANSWER✔✔-B) There
| | | | | | | | | | |
are only little over 100 different kinds of atoms that combine to form all
| | | | | | | | | | | | | |
substances.
