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Worksheets1st Semester Exam Review
Total questions: 26
Worksheet time: 17mins
Name
Class
Date
1.
Based on the model for carbon dioxide, what would be the correct formula?
a)
C2O
b)
CO2
c)
C2O2
d)
CO
2.
Which unit is often used to measure mass?
a)
grams
b)
ounces
c)
inches
d)
centimeters
3.
Periods tell us the number of.....
a)
shells/energy levels
b)
valence electrons
c)
molecules
d)
families
4.
Groups tell us the number of .....
a)
shells/energy levels
b)
valence electrons
c)
molecules
d)
protons
5.
How do we know which elements are similar?
a)
By their period number
b)
By their group number
c)
By the amount of protons
d)
By their color
6.
Which is an example of velocity?
a)
65 mph
b)
65 mph North
c)
65 m/s2
d)
65 g/cm3
7.
Which is not an indicator of a chemical reaction?
a)
Temperature Change
b)
Color Change
c)
Precipitate forms
d)
Mixing
8.
What is the acceleration of a 5 kg object if a force of 10 N acts upon it?
a)
2 m/s2
b)
50 m/s2
c)
.5 m/s2
d)
.2 m/s2
9.
What is the mass of an atom that contains 12 protons, 8 neutrons, and 12 electrons?
a)
12 amu
b)
24 amu
c)
20 amu
d)
32 amu
10.
What volume of liquid is in this graduated cylinder?
a)
5 ml
b)
15 ml
c)
20 ml
d)
25 ml
11.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
12.
Is this balanced?...
Al + O2 --> 2Al2O3
Al + O2 --> 2Al2O3
a)
Yes!
b)
NO!
13.
In this image, what are the symbols in red are called the_______.
a)
Products
b)
Reactants
c)
Subscripts
d)
Coefficients
14.
In this image, the symbols to the right of the arrow (in black) are called the_______.
a)
Products
b)
Reactants
c)
Subscripts
d)
Coefficients
15.
What determines an atom's reactivity?
a)
Electrons
b)
Valence Electrons
c)
Atomic Mass
d)
Atomic Number
16.
How do we know if an element is not reactive?
a)
It has a full outer shell
b)
It has fewer valence electrons
c)
It has a high atomic mass
d)
We can never tell
17.
Law of conservation of mass states that
a)
matter is created
b)
matter is destroyed
c)
matter is neither created nor destroyed
d)
matter does not change
18.
This is an example of Newton's 3rd Law because....
a)
it's the same as inertia.
b)
the force and acceleration are equal.
c)
it shows action-reaction.
d)
it's cool looking.
19.
If an atom has 24 protons, 25 neutrons, and 28 electrons, what is it's overall charge?
a)
-4
b)
+4
c)
-3
d)
+3
20.
What tells us the atomic number?
a)
number of protons
b)
number of neutrons
c)
number of electrons
d)
number of valence electrons
21.
Calculate the Net Force.
a)
60N, Left
b)
40N, Right
c)
0N
d)
60N, Right
22.
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
23.
What is happening at A?
a)
Stationary
b)
Accelerating
c)
Slower steady speed; moving away from the starting position
d)
Steady speed; returning to start position
24.
In an exothermic reaction, heat is ...
a)
taken in
b)
given out
25.
What does photosynthesis produce?
a)
glucose and oxygen
b)
carbon dioxide and oxygen
c)
carbon dioxide and water
d)
glucose and water
26.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases
c)
The kinetic energy decreases while the potential energy increases
d)
Bothe the potential energy and kinetic energy increase
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