WorksheetsU4 Test on Matter
Total questions: 50
Worksheet time: 50mins
A substance is an element if all the atoms in the substance are
the same
different
solid
gas
Homogenous mixtures are
not evenly mixed
evenly mixed
made of many different sized materials
An example of a heterogenous mixture =
gravel and sand
grape juice
iced tea
An example of a homogenous mixture =
fog
trail mix
apple juice
raisin bran
An example of a physical change:
an aluminum can is crushed
pits form on a chrome truck bumper
rust forms around a garden hose end
Separating a mixture through evaporation:
distillation
chemical change
chemical property
The Law of the Conservation of Mass says...
mass of reactants = mass of products
mass is always lost in a chemical change
mass is always gained in a chemical change
Calcium and Zinc are examples of:
Elements
Compounds
Mixtures
Solutions
Carbon Dioxide and Sodium Chloride (salt) are examples of:
Elements
Compounds
Colloids
True for all Mixtures:
cannot be physically separated
always clear
always cloudy
can be physically separated
When a graph of two variables is a straight line, increasing from left to right, the variables are...
directly related
indirectly related
not related.
If the sun shining through windows heats the air in a sealed room, what happens to the air pressure in that room?
it increases.
it decreases.
it will vary.
it remains constant.
According to Kinetic Theory, when gas particles increase in temperature they also
increase in speed
decrease in speed
According to Charles’s law, when the temperature of a gas at constant pressure is increased, its
volume increases.
mass increases.
volume decreases.
particles move more slowly.
Reason why hydraulic machines use liquid instead of gas
liquid is less expensive
gas cannot be contained inside metal
Liquid distributes a force right away
gas is not compressible
The graph displayed on the left shows that
as the temperature increases, the volume increases
as pressure increases, volume increases
as pressure increases, the volume decreases
Behavior of particles in a liquid
shaking or vibrating in place
sliding past one another
colliding with other particles and with surfaces
no movement
Behavior of particles in a solid
shaking or vibrating in place
sliding past one another
no movement
liquid's ability to push up on an object
buoyancy
sublimation
transpiration
transportation
temperature at which a solid turns to liquid
boiling point
freezing point
melting point
Moving fluid faster causes the fluid's pressure (pressing outward)
to increase.
to decrease.
to stabilize.
Main idea in the Kinetic Theory
particles move faster with more energy
particles always move in the same direction
particles are always changing location
particle energy cannot be measured
Average kinetic energy of particles =
temperature
speed
pressure
volume
viscosity is
resistance to flow
ability to flow
how good maple syrup tastes
State of matter made of charged particles, so much energy that collisions between particles cause pieces to break:
solid
liquid
gas
plasma
The slower the particles in a substance move,
the colder the substance is.
the warmer the substance is.
the more energy the substance has.
Which statement correctly describes the location and charge of the neutrons in an atom?
The neutrons are inside the nucleus and have a positive charge.
The neutrons are outside the nucleus and have a neutral charge.
The neutrons are outside the nucleus and have a negative charge.
The neutrons are inside the nucleus and have a neutral charge.
What type of particles are found in the cloud surrounding the atom's nucleus?
Neutral particles and positively charged particles
Positively charged particles only
Negatively charged particles and positively charged particles
Negatively charged particles only
Subatomic particle found in a "cloud", with a negligible mass:
Proton
Neutron
Electron
Quark
Iron has the chemical symbol Fe. Its mass number is 56. How many neutrons are found in one atom of Iron? (see periodic table).
26
56
30
A Carbon atom is found with 6 protons, 6 electrons and 6 neutrons. Which isotope of Carbon does this represent?
Carbon 12
Carbon 14
Carbon 18
not enough information
A term that describes electrons, protons, and neutrons.
subatomic particles
elements
nucleus
electron cloud
Two atoms have the same number of protons, so they are the same element. However, they have different numbers of neutrons, so their masses are also different. What are these two atoms called?
isotopes
rarities
exceptional
impossible
Particle accelerators have helped scientists find tracks of the subatomic particles which most likely join together to make protons and neutrons. These tiny particles are called:
quarks
moons
planets
cells
Vertical columns on the Periodic Table are groups or families. One thing the elements in the same group have in common is:
number of circles, or energy levels for electrons, in each atom
number of valance, or outer level electrons, in each atom
amu, or atomic mass unit, for each atom
atomic number, or number of protons, for each atom
Horizontal rows on the periodic table contain elements in which the atoms have the same number of energy levels, or circles, in which electrons can be found. The specific name for each of these rows is:
Period
Group
Family
Archive
Consider an ion in which there are 21 protons and 24 electrons. What is the ion's charge?
positive 2
negative 2
positive 3
negative 3
Name and chemical symbol for the element found in Group 12 and Period 4.
Calcium (Ca)
Zinc (Z)
Krypton (Kr)
Carbon (C)
Which of the following best explains WHY it is helpful to have the Periodic Table arranged by increasing atomic number (protons) instead of by increasing mass:
Since elements can have isotopes, an atom's mass can vary, and does not always increase from one element to the next.
Since the atoms in an element can be ionic, the number of electrons can be greater than the number of protons.
Which type of metals are in Group 1 of the Periodic Table?
alkali metals
alkaline earth metals
transition metals
What type of metals are in Group 2 of the periodic table?
alkali metals
alkaline earth metals
inner transition metals
Which type of metals are in groups 3-12 of the periodic table?
alkali metals
alkaline earth metals
transition metals
Which types of metals react very quickly with other substances?
alkali metals
transition metals
