Font size
WorksheetsPS Final Review
Total questions: 69
Worksheet time: 35mins
Three examples of physical change are ____.
sawing of wood, crushing a can, and toasting a marshmallow
burning of gasoline, rotting of an egg, and exploding fireworks
freezing of water, evaporation of gasoline, and rusting a nail
boiling of water, bursting of a balloon, and crumpling a piece of paper
The shape of a wooden block is a ____.
physical property
chemical change
physical change
chemical property
When a log burns in a fire, ____.
mass is lost
new substances are formed
mass is gained
a physical change has occurred
When two or more substances are combined so each substance can be separated by physical means, the result is a(n) ____.
element
compound
mixture
chemical change
Matter that has a definite volume and a definite shape is a ____.
liquid
gas
solid
plasma
A gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a ____.
liquid
plasma
gas
solid
Matter with no definite volume and no definite shape is a ____.
gas
plasma
solid
liquid
Matter that has a definite volume but no definite shape is a ____.
liquid
solid
plasma
gas
Most matter ____ when heated.
expands
condenses
contracts
solidifies
In a solution, the substance that is being dissolved is (a) .
A solution that contains all of the solute it can hold at a given temperature is (a) .
A molecule that is positively charged on one end and negatively charged on the other end is (a) .
Which radioactive particle consists of 2 protons and 2 neutrons?
isotope
alpha particle
beta particle
gamma ray
The type of radioactive particle that can be stopped by a sheet of paper is the
beta particle
gamma ray
electron
alpha particle
Which type of radiation requires at least 1 cm of lead to stop it, and is caused by a neutron transforming into a proton?
isotope radiation
alpha radiation
gamma radiation
beta radiation
A neutron and a(n) (a) have equal mass.
The outside electrons (in the outer energy level) of an atom are known as (a) .
Atoms of the same element with different numbers of neutrons are called (a) .
(a) is when two nuclei are united to form one nucleus that has a larger mass.
A certain atom has 30 protons, 30 electrons, and 40 neutrons. What is the atom’s mass?
10
70
60
30
The amount of time it takes for half of the atoms of an element to decay is known as the element’s (a) .
The most penetrating type of radiation is the (a) .
The process of splitting a larger atom into two smaller atoms is known as (a) .
Chlorine has ____ protons, ____ electrons, and ____ neutrons.
(a)
Choose the element below that is the most likely to transfer electrons.
Rb
Li
Zr
Be
Choose the element below that is most likely to take electrons.
Ar
F
N
Kr
A chemical reaction in which two or more substances combine to form another substance is called a (a) .
What type of reaction is shown in the following chemical equation: 2H₂O → 2H₂ + O₂?
double–displacement
decomposition
single–displacement
synthesis
How many nitrogen atoms are present in one molecule of ammonium nitrate, NH₄NO₃?
4
7
2
1
A chemical bond that occurs when atoms share electrons is a(n) (a) bond.
A chemical reaction in which heat energy is released is (a) .
Which of the following is a balanced chemical equation?
2AgNO₃ + 2NaCl → 3AgCl + 2NaNO₃
AgNO₃ + 2NaCl → AgCl + 3NaNO₃
AgNO₃ + NaCl → AgCl + NaNO₃
AgNO₃ + NaCl → 4AgCl + 2NaNO₃
According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?
The mass of the reactants is greater.
There is no relationship.
The masses are equal.
The mass of the products is greater.
How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?
6
2
4
8
Why do the noble gases NOT form compounds readily?
Their outer energy levels are completely filled with electrons.
They have seven electrons in the outer energy levels.
They have no electrons.
They have empty outer energy levels.
What type of bond is formed when one atom loses electrons to another atom and they are then joined by having opposite charges?
hydrate
ionic
magnetic
covalent
What is the name of the ionic compound with the formula Li₂O?
oxygen lithide
lithium oxide
lithium oxate
lithium oxygen
2 H₂(g) + O₂(g) → 2 H₂O(l) In the above reaction, what state of matter is the product?
liquid
plasma
solid
gas
Inertia varies depending on ____.
gravity
motion
force
mass
In the absence of air, a bowling ball and a piece of paper that are dropped from the same height at the same time will ____.
float
fall at different rates
fall at the same rate
not have momentum
When an object moves in a circular path, it accelerates toward the center of the circle as a result of ____.
centripetal force
frictional force
gravitational force
momentum
The size of the gravitational force between two objects depends on their ____.
masses and the distance between them
frictional forces
inertia
speed and direction
A 400-N force acts on a 20-kg object. The acceleration of the object is ____.
12 m/s²
7,500 m/s²
300 m/s²
20 m/s²
A merry-go-round horse moves at a constant speed but at a changing ____.
balanced force
inertia
velocity
unbalanced force
If you ride your bicycle down a straight road for 500 m then turn around and immediately ride back a distance of 100 m before stopping, your distance is ____ and your displacement is ______.
500 m ; 100 m
500 m ; 500 m
600 m ; 400 m
600 m ; 600 m
A golf club loses momentum of 10 kg x m/s when it hits a golf ball. How much momentum did the golf ball gain?
2.04 kg x m/s
196 kg x m/s
10 kg x m/s
20 kg x m/s
Two objects that have the same mass are dropped from a tall building. One object is larger and flatter than the other. Why does the larger, flatter object hit the ground last?
Because it has less mass.
It has less air resistance.
Because it has more mass.
It has more air resistance.
____ is what causes a car to keep moving even after you slam on the brakes.
Momentum
Inertia
Gravity
Friction
A rock rolling down the side of a hill experiences (a) .
While sliding a box across a floor, the box will experience (a) .
What is the acceleration of a runner who increases their velocity from 6 m/s to 11 m/s over a course of 5 seconds?
1 m/s²
-1 m/s²
3.4 m/s²
13.2 m/s²
Through which of the following will convection most likely occur?
liquids and gases
solids and gases
solids and liquids
solids
Energy stored due to your position above the Earth is called __________.
gravitational potential energy
chemical potential energy
elastic potential energy
kinetic energy
The kinetic energy of an object increases as its ____ increases.
velocity
gravitational energy
potential energy
specific heat
A transfer of energy that occurs when a force moves an object is known as __________.
work
thermal energy
mechanical advantage
conduction
The transfer of energy that does NOT require matter is ____.
convection
combustion
radiation
conduction
Which of the following causes some of the energy transferred to an object to be converted into thermal energy?
gravity
efficiency
friction
mechanical advantage
In a nuclear fusion reaction, mass is transformed into ____.
energy
matter
nuclei
light
Energy stored by objects that are stretched or compressed is known as ______________.
gravitational potential energy
kinetic energy
chemical potential energy
elastic potential energy
Energy stored in chemical bonds is called ______________.
kinetic energy
elastic potential energy
chemical potential energy
gravitational potential energy
A material that reduces the flow of heat by conduction, convection, and radiation is ____.
a solar collector
a conductor
condensation
an insulator
While sitting on a shelf, a book has a potential energy of 30 J and a kinetic energy of 0 J. If the book were to fall off the shelf, what would be its maximum possible kinetic energy?
15 J
30 J
60 J
can’t determine without knowing the height and mass
According to the law of conservation of energy, the total amount of energy in the universe __________.
increases
decreases
changes constantly
remains constant
The atoms in a magnet are ____.
positively charged
arranged randomly
aligned according to magnetic fields
negatively charged
A material through which electrons do NOT easily flow is a(n) ____.
conductor
fuse
transformer
insulator
Which one of the following metals is NOT magnetic?
iron
cobalt
copper
nickel
A bond that consists of one metal and one nonmetal is a/an _______ bond.
covalent
strong
ionic
metallic
A bond that consists of 2 nonmetals is a _______ bond.
covalent
strong
ionic
metallic
A _______ reaction occurs when two light nuclei combine to form one heavy nucleus.
synthesis
sing replacement
fission
fusion
