Density/Scientific Method Quiz #3 9/13/13
DO NOT WRITE ON THIS EXAM - INDICATE YOUR ANSWERS ON YOUR SCAN-TRON. Use an alphabetic
response to the question below.
16 Identify your test version in question #16 by bubbling the correct choice on your scan-tron using either A, B, C,
D or E. To determine your version #, look in the upper right corner next to the ‘period #’ where it says “ID: _”
Multiple Choice
Identify the ONE choice that best completes the statement or answers the question.
17 Which of these correctly describes a measurement of density?
A 2 g/cm
C 1 cm3/g3
B 4 g/cm2
D 1 g/cm3
18 An unknown liquid has a mass of 18 grams and a volume of 3 mL, what is its density?
A 6 g/mL
C 18 g/3 mL
B 9 g/mL
D 18/3 g/L
19 Which formula could you use to find the density of a solid?
A d= v/m
C d=g/v
B d= m/v
D d= m/g
20 To find the density of an object, which measurements do you need to know?
A mass and weight
C volume and mass
B length and volume
D length and heigh
21 Density is _________
A A measurement of mass divided by
C A measurement of volume divided by
volume
mass
B A measurement of grams and centimeters D None of the above
22 Terence wonders whether lizards are more likely to bask outside of shelter if the sun is very bright even when
the temperature is cold. Which of these represents the dependent (responding) variable?
A The type of lizard studied
C The type of shelter the lizards live in
B The amount of time lizards spend in the
D The amount of sunlight
sun
23 When designing possible experimental investigations to test hypotheses, which of the following choices must be
followed?
A Be sure that each experiment is a
longitudinal study
B Be sure that each experiment is easy to
conduct.
C Be sure that each experiment can test
several hypotheses.
D Be sure that each experiment tests only
24 Which of these is a correctly-worded hypothesis?
A I think plants watered with cola will grow C
faster because cola has sugar.
B Plants need sugar so cola will make them D
grow faster.
25 Why is a gas easier to compress than a solid?
A The molecules are close together and have C
very little space between them
B The molecules can flow
D
one hypothesis.
Plants watered with cola will probably die.
I think plants watered with cola will grow
faster.
The molecules are arranged in a vibrating
pattern
The molecules are spread farther apart and
have more space between them
26 Which of these does NOT happen to a solid when it melts into a liquid?
A The molecules move faster
C The molecules become fluid
B The molecules become closer
D The molecules can form into the shape of
their container
27
Which diagram best shows matter that is ‘fluid’?
A The picture on the left
B The picture in the middle
28 What happens to a liquid as it cools down?
A The molecules become closer
B The molecules become more fluid
29
A.
B.
C The middle and right side pictures
D The picture on the right
C The motion of the molecules slows down,
causing it to change to a solid
D Both a and c
C.
The diagrams shown above represent atoms in the various states of matter. Water can change state easily
between a liquid (water), a gas (steam) and a solid (ice). Which of the following are matched correctly with their
states of matter?
A A– water
C A– ice
B– ice
B– steam
C– steam
C– water
B A– steam
B– ice
C– water
D A– ice
B– water
C– steam
30 Thermal energy always moves from __________
A solids to liquids.
C liquids to gases.
B cooler matter to warmer matter.
D warmer matter to cooler matter.
Density/Scientific Method Quiz #3 9/13/13
Answer Section
NUMERIC RESPONSE
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