True/False
Indicate whether the sentence or statement is true
or false.
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1.
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Atoms of
different elements have different numbers of protons.
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2.
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In an atom,
an electron that is close to the nucleus is on the highest energy level.
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3.
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To become
more stable, an atom that has two electrons in its outer energy level will gain two
electrons.
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4.
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It is easier
to remove an electron from the outer energy level than from one closer to the nucleus.
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Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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5.
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Popeye wanted to test out the effects of new brands of spinach on his triplet sons.
One son will be given lettuce which is known to have no effect on muscle growth. The second son will
be given Kuner’s spinach. The third son will be given Del Monte Spinach. The table below shows
the data that Popeye collected after his sons were fed for 1 month.
What was the independent variable (s) in
this experiment? a. | Bicep
circumference | c. | Types of
Spinach | b. | Time | d. | Popeye’s sons | | | | |
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6.
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According to the Popeye passage above, what was the dependent variable
in this experiment? a. | Bicep circumference | c. | Types of Spinach | b. | Time | d. | Popeye’s
sons | | | | |
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7.
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According to the Popeye passage above, what was the control in this
experiment? a. | Bicep
circumference | c. | Types of
Spinach | b. | Lettuce | d. | Popeye’s sons | | | | |
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8.
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According to the Popeye passage above, what conclusion can be made from
this experiment? a. | Spinach does not
make biceps grow. | c. | Kuner’s
spinach makes biceps grow the fastest. | b. | Del Monte spinach makes biceps row the
fastest. | d. | Chopped lettuce
makes biceps grow the fastest. | | | | |
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9.
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According to the Popeye passage above, what would be the best tool for Popeye to use
when measuring his son’s bicep circumference? a. | Graduated
Cylinder | c. | Thermometer | b. | Triple Beam Balance | d. | Measuring tape or string | | | | |
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10.
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Latisha wanted to know which of her favorite sodas had the most sugar. She
compared the nutrition labels of her five favorite sodas. Below is a graph she created
representing her data.
Which soda should Latisha drink if she wants to reduce
her sugar intake? a. | Coke | d. | Dr.
Pepper | b. | Mountain Dew | e. | Pepsi | c. | Ginger
Ale | | | | |
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11.
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According to the graph above, what is the approximate difference in grams between the
highest and lowest sugared soda? a. | 20 g | d. | 35 g | b. | 25 g | e. | 40 g | c. | 30 g | | | | |
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12.
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According to the graph above, What type of graph is represented
above? a. | Pie
graph | d. | Bar
graph | b. | Line graph | e. | Double line graph | c. | Double bar
graph | | | | |
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13.
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According to the graph above, what is the dependent variable on this
graph? a. | Grams of
sugar | d. | Grams of
soda | b. | Type of
soda | e. | None | c. | Favorite soda | | | | |
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14.
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According to the graph above, if Latisha wanted to measure out 98 grams of solid table
sugar, which tool would she use for this activity? a. | Graduated
Cylinder | d. | Stopwatch | b. | Triple Beam Balance | e. | Metric Ruler | c. | Thermometer | | | | |
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15.
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Use the phases of matter illustration below to answer questions 1 &
2.
1. Which choice above puts the illustrations in order
from least amount of energy to the greatest? a. | A,B,C,D | c. | C,A,D,B | b. | C,B,A,D | d. | D,A,C,D | | | | |
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16.
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Which
choice above has a definite volume, but no definite shape?
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17.
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Read the passage below and answer question 3.
Jackie, Johnnie, Jillian, and River went camping for the weekend. Jackie
and Jillian 1 unpacked the tent and set it up in the clearing of
the campground. Johnnie and River decided they would get the campfire started. River
2cut off some tree limbs and piled them into the fire pit. Johnnie
3 lit the match to get the logs burning. After the girls setup the tent,
they each decided to roast marshmallows with the boys. Jillian pushed a marshmallow onto the
end of a long stick and held it into the campfire. The marshmallow 4started to turn
black in color as it roasted. Johnnie accidentally dropped his marshmallow into the dirt
before getting it onto the end of the long stick. His marshmallow
5became brown in color now instead of the pure white color that marshmallows
are known for.
According to the
numbered underlined portions from the passage above, the following are physical
changes:
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18.
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Which two
elements above are most likely to bond together based on their Bohr models
above? a. | Lithium &
Neon | c. | Neon &
Carbon | b. | Fluorine & Carbon | d. | Lithium & Fluorine | | | | |
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19.
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Which element
above is least likely to bond with any other elements? a. | Lithium | c. | Neon | b. | Fluorine | d. | Carbon | | | | |
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20.
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Referring to the Bohr models above, how many valence electrons does Carbon
have?
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21.
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Referring to the Bohr models above, what is the atomic number of
Fluorine?
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22.
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 Of the three elements in the Alkali Metal
Family-group 1(Lithium-Li, Sodium-Na, and Potassium-K) which has the highest boiling
point?
a. | Lithium | c. | Potassium | b. | Sodium | d. | All the same | | | | |
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23.
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Approximately, how much higher is the boiling point of Boron (B) than Magnesium
(Mg)? a. | 1250 degrees
Celsius | c. | 2000 degrees
Celsius | b. | 2500 degrees Celsius | d. | 500 degrees Celsius | | | | |
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24.
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In
the graph above, the boiling point is considered the following; a. | Dependent
Variable | b. | Independent
Variable | | | | |
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25.
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Some
elements are unlikely to lose or gain electrons, but share electrons to form covalent bonds. Which of
the following elements is most likely to form covalent bonds? a. | silicon
(#14) | c. | chlorine
(#17) | b. | oxygen (#8) | d. | sulfur (#16) | | | | |
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26.
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Matter that has the same composition and properties throughout is called a(n)
____. a. | substance | c. | atom | b. | mixture | d. | isotope | | | | |
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27.
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When
two pure substances are combined so that each of the pure substances retains its own properties, the
result is a(n) ____. a. | compound | c. | element | b. | mixture | d. | isotope | | | | |
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28.
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In
general, nonmetals are ____. a. | good conductors of electricity | c. | good conductors of heat | b. | malleable and
ductile | d. | gases at room
temperature | | | | |
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29.
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In
general, metals are ____. a. | poor conductors of heat | c. | poor conductors of electricity | b. | brittle | d. | good conductors
of heat | | | | |
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30.
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Water
and hydrogen peroxide have different properties because ____. a. | they are made
from different elements | b. | one contains a greater percentage of oxygen than the
other | c. | one is a compound and one is a
mixture | d. | only water follows the law of definite
proportions | | |
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31.
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Which
of these statements about matter is NOT true? a. | During chemical changes, matter is
destroyed. | b. | Matter has mass and takes up space. | c. | Matter can be
divided into pure substances and mixtures. | d. | Matter is made up of atoms. | | |
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32.
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The
millions of compounds that exist are made from approximately ____ elements.
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33.
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Most
of the mass of an atom is found in its ____. a. | nucleus | c. | atomic number | b. | electron
cloud | d. | mass
number | | | | |
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34.
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A
certain atom has 26 protons, 26 electrons, and 30 neutrons. It atomic mass is
____.
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35.
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The
particles that make up an atom are ____. a. | electrons, protons, and nuclei | c. | protons, neutrons, and nuclei | b. | elements, protons, and
electrons | d. | protons, neutrons, and
electrons | | | | |
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36.
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In an atom,
electrons ____. a. | are located in the
nucleus | c. | travel outside the
nucleus | b. | are paired with neutrons | d. | are always in the same place in an atom | | | | |
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37.
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The energy
levels of an atom are occupied by ____. a. | electrons | c. | neutrons | b. | protons | d. | ions | | | | |
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38.
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The maximum
number of electrons in the second energy level of an atom is ____.
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39.
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Identifiy from the atomic structure image below what letter B is pointing
at.
a. | electron | c. | neutron | b. | proton | d. | nucleus | | | | |
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40.
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Referring to question 19 and the atomic structure image, what is letter C pointing
at? a. | electron | c. | neutron | b. | proton | d. | nucleus | | | | |
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41.
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Referring to question 19 and the atomic structure image, whai is the region
surrounding the nucleus of the atom, where electrons are most likely to be found. a. | neutron
cloud | c. | atomic
cloud | b. | energy cloud | d. | electron cloud | | | | |
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42.
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Looking at the element Lithium below, how many electrons does it
have?
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43.
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Referring to question 22 and the element Lithium, what is the letter B pointing
at? a. | atomic structure
of the atom | c. | # of
protons | b. | atomic mass (mass number) | d. | atomic number | | | | |
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44.
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Referring to question 22 and the Lithium image, how many neutrons does Lithium
have?
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45.
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What
family is represented in the highlighted color below?
a. | alkali metal
family | c. | halogens | b. | alkaline earth metal family | d. | noble gases | | | | |
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46.
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Acceleration involves a change in ____. a. | time | c. | speed | b. | direction | d. | both b and c | | | | |
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47.
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Speed
is the rate of change in ____. a. | velocity | c. | direction | b. | time | d. | distance | | | | |
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48.
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Momentum is a measure of ____. a. | how hard it is to stop an object | b. | the amount of
matter in an object | c. | the tendency of an object to change its
motion | d. | the amount of force acting on an
object | | |
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49.
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Inertia ____. a. | depends on direction | c. | resists a change in motion of an
object | b. | depends on momentum | d. | both a and b | | | | |
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50.
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On a
speed-time graph, a horizontal line shows the change in speed is ____.
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51.
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Franky the Fox traveled 30 miles in 3 h. What is your speed in m/h? a. | 100
m/h | c. | 10
m/h | b. | 90
m/h | d. | .1
m/h | | | | |
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52.
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Jack
the Jaguar goes from 0 km/h to 45 km/h in 0.5 h. What is the acceleration in
km/h2?" a. | 90 km/h2 | c. | 45 km/h | b. | -90
km/h2 | d. | 90
km/h | | | | |
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Completion
Complete each sentence or
statement.
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53.
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If
your speed changes from 10 km/h to 6 km/h, you have a(n) ____________________
acceleration.
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54.
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Three
ways to accelerate an object are to ____________________, ____________________, or
____________________.
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55.
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To
have momentum, an object must be ____________________.
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56.
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When
an object with a momentum of 80 kg ´ m/s collides with an object with a momentum of –100 kg
´ m/s the total
momentum after the collision is ____________________ kg ´ m/s.
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57.
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The
tendency of an object to resist a change in motion is called ____________________.
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Short Answer
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58.
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Describe the motion of a car with an acceleration of –2
m/s2.
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Problem
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59.
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You
travel 190 km in 2 h. What is your speed in km/h?
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60.
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A car
goes from 80 km/h to 20 km/h in 0.5 h. What is the acceleration in
km/h2?"
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61.
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A
compact car with a mass of 725 kg is moving at 30 m/s. What is its momentum?
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62.
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A
50-kg object has a momentum of 600 kg x m/s. What is its velocity?
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63.
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A
50-kg object moving at 12 m/s has a momentum of 600 kg ´ g m/s. What is the mass of an object, moving at 4 m/s
that has the same momentum?
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64.
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A
25-kg object moving at 15 m/s collides with a 15-kg object that is standing still. They stick
together and keep moving. What is the final velocity?
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65.
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A
0.4-kg toy train car moving forward at 3 m/s collides with and sticks to a 0.8–kg toy car that
is traveling in the opposite direction at –2 m/s. What is the size and direction of the final
velocity of the two cars?
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