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Physical Science Q1 2012 21 - 30
Test Description: PS, Q1, 2012, 21 - 30
Instructions: Answer all questions to get your test result.
1) WHich of these is NOT an example of a physical change?
A
a match burning
B
liquid evaporating
C
ice melting
D
a piece of wood breaking
2) Pretend that an object has a density of 5 grams per centimeter cubed. If you were to cut the object in half, the density of each half is
A
less than 5 grams per centimeter cubed
B
more than 5 centimeters cubed
C
for some odd reason, 0.
D
the exact same
3) Which of the following is NOT a chemical property?
A
density
B
combustibility
C
reactivity
D
acidity
4) What is the formula to find density?
A
density = volume divided mass
B
mass = weight x volume
C
density = weight divided by volume
D
density = mass divided by volume
5) John Dalton's model of an atom can be described as:
A
electrons are inside the atom, but outside of the nucleus
B
electrons follow a set path around the nucleus
C
the atom looks like a cloud, you can't really see anything else
D
electrons and protons float freely within the boundaries of the atom
6) Which model of the atom does the BEST job of illustrating the three dimensional structure of the atom?
A
Thompson's model
B
Bohr's model
C
Electron cloud model
D
Rutherford's model
7) Which subatomic particles have a positive charge and are located in the nucleus?
A
neutrons
B
electrons
C
protons
D
elements
8) The nucleus of an atom is though to contain:
A
legos
B
electrons
C
protons and neutrons
D
molecules
9) How many atoms are present in the molecule for salt, NaCl?
A
3
B
4
C
2
D
5
10) Which of the following is NOT a group within the periodic table of elements?
A
halogens
B
noble gasses
C
water
D
alkali metals
*select an answer for all questions
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