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19 terms
Physical Science Chapter 7
Motion
Elapsed Time
Speed
distance
a change in position
the length of time that passes from one event to another
the rate at which the position of an object changes
the length of the path between two points
Motion
a change in position
Elapsed Time
the length of time that passes from one event to another
36 terms
Chapter 7 Physical Science
Mechanical Work
Positive Work
Negative Work
Work Equals Zero
Occurs when an object moves due to a force applied parallel t…
Occurs when both the force and the displacement are parallel…
Occurs when both the force and the displacement are parallel…
Occurs when the force or the displacement is zero.
Mechanical Work
Occurs when an object moves due to a force applied parallel t…
Positive Work
Occurs when both the force and the displacement are parallel…
21 terms
Physical Science Chapter 7
solution
colloid
suspension
solute
a well-mixed mixture containing a solvent and at least one so…
a mixture containing small, undissolved particles that do not…
A mixture in which particles can be seen and easily separated…
the part of a solution present in a lesser amount and dissolv…
solution
a well-mixed mixture containing a solvent and at least one so…
colloid
a mixture containing small, undissolved particles that do not…
13 terms
AGS Physical Science Chapter 7
motion
elapsed time
speed
distance
a change in positon
the length of time that passes from one event to another
the rate at which the position an object changes
the length of the path between two points
motion
a change in positon
elapsed time
the length of time that passes from one event to another
18 terms
Chapter 7 - Physical Science
catalyst
chemical equation
chemical equilibrium
chemical energy
a substance that changes the rate of a chemical reaction with…
A representation of a chemical reaction that uses symbols to…
a state of balance in which the rate of a forward reaction eq…
the energy released when a chemical compound reacts to produc…
catalyst
a substance that changes the rate of a chemical reaction with…
chemical equation
A representation of a chemical reaction that uses symbols to…
Physical Science Chapter 7 Vocabulary
chemical equation -
reactant -
product -
chemical reaction -
a written form that tells the reactants, products, physical s…
a substance that is there before the reaction starts.
a substance that is formed in the reaction.
a process that produces chemical change.
chemical equation -
a written form that tells the reactants, products, physical s…
reactant -
a substance that is there before the reaction starts.
24 terms
Physical Science Chapter 7
What is a suspension?
How do solutes lower the freezing poin…
Which is a dilute solution: (a) 5 g of…
What is a colloid?
A mixture in which particles can be seen and easily separated…
By making it harder for water molecules to form crystals (p.2…
(a) 5 g of salt dissolved in 50 g of water (p.263)
A mixture containing small, undissolved particles that do not…
What is a suspension?
A mixture in which particles can be seen and easily separated…
How do solutes lower the freezing poin…
By making it harder for water molecules to form crystals (p.2…
8 terms
Physical Science Chapter 7 - Electricity
Static Electricity
Current Electricity
Conductor
Insulator
A buildup of electrical charges on an object
Electricity that flows through a wire from one place to another
A material through which electricity can flow easily
A material that slows down or stops the flow of electricity
Static Electricity
A buildup of electrical charges on an object
Current Electricity
Electricity that flows through a wire from one place to another
18 terms
Physical science chapter 7 vocabulary
reactant
product
chemical energy
exothermic reaction
A chemical substance that is present at the start of a chemic…
A substance produced in a chemical reaction
Energy stored in chemical bonds
A reaction that releases energy in the form of heat
reactant
A chemical substance that is present at the start of a chemic…
product
A substance produced in a chemical reaction
11 terms
Physical Science Chapter 7
fluid
pascal
pressure
atmospheric pressure
...
...
...
...
fluid
...
pascal
...
Physical Science Chapter 7
solution
colloid
suspension
solute
a well-mixed mixture containing a solvent and at least one so…
a mixture containing small, undissolved particles that do not…
A mixture in which particles can be seen and easily separated…
the part of a solution present in a lesser amount and dissolv…
solution
a well-mixed mixture containing a solvent and at least one so…
colloid
a mixture containing small, undissolved particles that do not…
20 terms
Physical Science Chapter 7
Periodic Table
Periodic Law
Electron Configuration
Valence Electrons
A table of the elements arranged by atomic number into vertic…
The chemical properties of the elements are periodic function…
The number and position of electrons in the energy levels of…
The electrons in the outermost energy levels of an electron
Periodic Table
A table of the elements arranged by atomic number into vertic…
Periodic Law
The chemical properties of the elements are periodic function…
11 terms
Physical Science Chapter 7
Motion
Elapsed time
Speed
Distance
A change in position
The length of time that passes from one event to another
The rate at which the position of an object changes
The length of the path between two points
Motion
A change in position
Elapsed time
The length of time that passes from one event to another
14 terms
Physical Science Chapter 7
Charging by Contact
Charging by induction
circuit
conductor
process of transferring charge by touching or rubbing.
process of rearranging electrons on a natural subject bringin…
closed conducting loop through which and electric current can…
material such, as copper wire, in which electrons can move ea…
Charging by Contact
process of transferring charge by touching or rubbing.
Charging by induction
process of rearranging electrons on a natural subject bringin…
22 terms
Physical Science Chapter 7
machine
input
output
simple machine
a device with moving parts that work together to accomplish a…
forces, energy, or power supplied to make a machine accomplis…
forces, energy, or power provided by the machine
an unpowered mechanical device that accomplishes a task with…
machine
a device with moving parts that work together to accomplish a…
input
forces, energy, or power supplied to make a machine accomplis…
45 terms
physical science chapter 7
molecular mass
compounds
isomers
pure substance
tyeps and numbers of atoms in a molecule determine its blank,…
substances composed of different types of atoms bonded together
molecules with the same number an types of atoms but differen…
substance that has the same physical properties throughout an…
molecular mass
tyeps and numbers of atoms in a molecule determine its blank,…
compounds
substances composed of different types of atoms bonded together
15 terms
Physical Science Chapter 7
watt
machine efficiency is
1st class lever
2nd class lever
unit that measures the rate of doing work
Always less than 100%
Fulcrum between effort and resistance
Resistance between effort and fulcrum
watt
unit that measures the rate of doing work
machine efficiency is
Always less than 100%
51 terms
Physical Science Chapter 7
Which of the following is luminous?
A source of light given off as a resul…
An idealized material that absorbs and…
Electromagnetic radiation is given off…
Sun
incandescent.
blackbody.
blackbody radiation.
Which of the following is luminous?
Sun
A source of light given off as a resul…
incandescent.
Physical Science Chapter 7 Vocabulary
magnetism
magnetic field
magnetic pole
magnetic domain
the properties and interactions of magnets
a region of space that surrounds an object made of magnetic m…
the north and south regions of a magnet
groups of atoms with aligned magnetic poles have...
magnetism
the properties and interactions of magnets
magnetic field
a region of space that surrounds an object made of magnetic m…
38 terms
Physical Science- Chapter 7
Work
mechanical work
positive mechanical work
system
the exchange of energy for some change in a physical system;…
a force acts on an object to move it in a direction parallel…
when the force acts on a system in the same direction as the…
gains energy when work is done on it
Work
the exchange of energy for some change in a physical system;…
mechanical work
a force acts on an object to move it in a direction parallel…
26 terms
Chapter 7: Physical Science
Reactants
Products
Chemical equation
Coefficients
the subsatnce that undergo change
new substances formed as a result of that change
is a representation of a chemical reaction in which the react…
numbers that appear before the formulas
Reactants
the subsatnce that undergo change
Products
new substances formed as a result of that change
32 terms
Physical Science Chapter 7 (Trilogy)
magnetism
magnetic field
magnetic poles
magnetic domains
refers to the properties and interactions of magnets
a region of space that surrounds a magnet and exerts a force…
the regions of the magnet that exert the strongest force
these groups of atoms in a magnetic material in which the mag…
magnetism
refers to the properties and interactions of magnets
magnetic field
a region of space that surrounds a magnet and exerts a force…
15 terms
Physical Science Chapter 7
Ecliptic
Ellipse
Equinox
Gravity
Yearly path of Earth around the Sun; also, the Sun's apparent…
Elongated, closed curve with two foci; shape of Earth's orbit…
Occurs twice a year in March and September when Earth's rotat…
Attractive force between two objects that depends on the mass…
Ecliptic
Yearly path of Earth around the Sun; also, the Sun's apparent…
Ellipse
Elongated, closed curve with two foci; shape of Earth's orbit…
Physical Science Chapter 7
Chemical bond
Chemical Compounds
Alloy
Electrolytes
A force of attraction between ions and atoms
Chemical Formulas
Is a mixture of metal
Compounds which dissolve in water and make a solution that co…
Chemical bond
A force of attraction between ions and atoms
Chemical Compounds
Chemical Formulas
14 terms
Physical Science Chapter 7
What is the formula used to determine…
What is the formula used to determine…
What is the metric unit for work?
What is the metric unit for power?
W = F x D
P + W/t
Joules
Watts
What is the formula used to determine…
W = F x D
What is the formula used to determine…
P + W/t
26 terms
Physical Science-Chapter 7
Household appliances use electrical en…
insulator
The presence of a ____ charge can be d…
rearrangement of electrons on a neutra…
different
material that doesn't allow electrons to flow through it easi…
static electric
induction
Household appliances use electrical en…
different
insulator
material that doesn't allow electrons to flow through it easi…
Physical Science Chapter 7 Work and Simple Machines
mechanical work (W)
power (P)
simple machine
mechanical advantage (MA)
the equivalent of the amount of energy transferred to an obje…
the rate of doing work, measured in watts (w)
a basic mechanical device that either reduces effort or incre…
a measure of the reduction in effort to do a certain amount o…
mechanical work (W)
the equivalent of the amount of energy transferred to an obje…
power (P)
the rate of doing work, measured in watts (w)
43 terms
Physical Science Chapter 7
static electricity
law of conservation of charge
electric field
conductor
accumulation of excess electric charge (electrons) of an object
charge can be transferred from one object to another but it c…
Every electric charge is surrounded by an
material in which electrons are able to move easily
static electricity
accumulation of excess electric charge (electrons) of an object
law of conservation of charge
charge can be transferred from one object to another but it c…
18 terms
Physical Science, BJU 5th ed, Chapter 7
Mechanical Work
Power
simple machines
mechanical advantage
Force times distance
amount of work per unit time
things that make work easier, using one or two parts
how much easier a tool makes work
Mechanical Work
Force times distance
Power
amount of work per unit time
19 terms
Physical Science Chapter 7
Reactants:
Products:
Chemical Equation:
Coefficients:
A starting material in a chemical reaction
Ending materials in a chemical reaction.
a way to describe a chemical reaction using chemical formulas…
the numbers that appear before the formulas
Reactants:
A starting material in a chemical reaction
Products:
Ending materials in a chemical reaction.
29 terms
Physical Science Chapter 7
Mechanical work
Power
Watt
Simple machines
when a force acts on an object to move it in a direction para…
rate of doing work, equals work / time
SI unit of power
basic mechanical device that can reduce effort or increase ma…
Mechanical work
when a force acts on an object to move it in a direction para…
Power
rate of doing work, equals work / time
19 terms
Physical science chapter 7
medium
waves
compression
crest
substance through which waves can travel
disturbances that transfer energy from place to place
part of a medium where the particles are close together
the high point of the wave
medium
substance through which waves can travel
waves
disturbances that transfer energy from place to place
13 terms
AGS Physical Science Chapter 7
motion
elapsed time
speed
distance
a change in positon
the length of time that passes from one event to another
the rate at which the position an object changes
the length of the path between two points
motion
a change in positon
elapsed time
the length of time that passes from one event to another
10 terms
Chapter 7 Physical Science
Solutes with freezing points
Solutes with Boiling Points
Dilute solution
Concentration solution
lower the freezing point by making it harder for molecules to…
higher boiling point by making it harder for water molecules…
a mixture that has only a little solute dissolved in a certai…
One that has a lot of solute dissolved in the solvent
Solutes with freezing points
lower the freezing point by making it harder for molecules to…
Solutes with Boiling Points
higher boiling point by making it harder for water molecules…
9 terms
Foundations of Physical Science Chapter 7
Energy
Joule
Mechanical Energy
Chemical Energy
a quantity that describes the ability of an object to change…
a unit of energy. One joule is enough energy to push with a f…
a form of energy that is related to motion or position. Examp…
a form of energy that is stored in molecules
Energy
a quantity that describes the ability of an object to change…
Joule
a unit of energy. One joule is enough energy to push with a f…
32 terms
Physical Science Chapter 7
Primary
Strength
120 volts
Galvanometer
In a step down transformer the number of turns is greater in…
In an electric current, changing the current changes WHAT?
In the US power lines carry a voltage of 750 volts; how many…
Device used to measure current
Primary
In a step down transformer the number of turns is greater in…
Strength
In an electric current, changing the current changes WHAT?
29 terms
BJU Physical Science Chapter 7
mechanical work (W)
power (P)
watt (W)
simple machine
the equivalent of the amount of energy transferred to an obje…
rate of doing work, measured in watts in the SI.
the SI unit of power; =1 J/s
A basic mechanical device that either reduces effort or incre…
mechanical work (W)
the equivalent of the amount of energy transferred to an obje…
power (P)
rate of doing work, measured in watts in the SI.
10 terms
Chapter 7 Physical Science: Motion Terms
Friction
Motion
Elapsed time
Speed
a force that opposes motion
a change in position
Length of time that passes from one event to another
Rate at which the position of an object changes
Friction
a force that opposes motion
Motion
a change in position
52 terms
Physical Science Chapter 7
What is the definition of a solution?
What is the Universal Solvent?
What is the definition of a solute?
What is a solvent?
Well-mixed mixture with a solvent and at least one solute.
Water
The substance that is being dissolved in a solution.
This substance dissolves other substances in a solution.
What is the definition of a solution?
Well-mixed mixture with a solvent and at least one solute.
What is the Universal Solvent?
Water
24 terms
Physical Science Chapter 7
Machines, creation
work
mechanical work (w)
power (P)
Some of our best _________ are imatations of God's ________
What involves the exchange of energy for some change in the p…
What occurs when a force acts on an object to move in a direc…
What is the rate of doing work?
Machines, creation
Some of our best _________ are imatations of God's ________
work
What involves the exchange of energy for some change in the p…
16 terms
Chapter 7 Vocab (Physical Science)
magnetism
magnetic field
magnetic poles
magnetic domains
refers to the properties and interactions of magnets
a region of space that surrounds a magnet and exerts a force…
the regions of a magnet that exert the strongest forces
a group of atoms with aligned magnetic poles
magnetism
refers to the properties and interactions of magnets
magnetic field
a region of space that surrounds a magnet and exerts a force…
15 terms
Physical Science chapter 7
Mechanical work
Power
Watt
Simple machine
Occurs when a force acts on an object and the object moves pa…
Work/time (work divided by time) (W/∆t)
Joule/Second
Basic tool that makes it easier to accomplish difficult tasks…
Mechanical work
Occurs when a force acts on an object and the object moves pa…
Power
Work/time (work divided by time) (W/∆t)
12 terms
Holt Physical Science - Chapter 7
Fluid
Pressure
Pascal
Atmospheric Pressure
any material that can flow and that takes the shape of its co…
the amount of force exerted on a given area; expressed in pas…
the SI unit of pressure; equal to the force of 1 N exerted ov…
the pressure caused by the weight of the atmosphere
Fluid
any material that can flow and that takes the shape of its co…
Pressure
the amount of force exerted on a given area; expressed in pas…
34 terms
Physical Science Chapter 7
solution
colloid
suspension
solute
a well-mixed mixture containing a solvent and at least one so…
a mixture containing small, undissolved particles that do not…
A mixture in which particles can be seen and easily separated…
the part of a solution present in a lesser amount and dissolv…
solution
a well-mixed mixture containing a solvent and at least one so…
colloid
a mixture containing small, undissolved particles that do not…
18 terms
Physical science chapter 7
Reactants 192
Products 192
Chemical equation 193
Coefficients 194
The substances that undergo changes in a chemical reaction.
New substances formed as the result of changes in a chemical…
A representation of a chemical reaction in which the reactant…
The numbers that appear before the formulas
Reactants 192
The substances that undergo changes in a chemical reaction.
Products 192
New substances formed as the result of changes in a chemical…
40 terms
Physical Science Chapter 7 Vocabulary
Reactant
Products
Chemical equation
Coefficients
is a substance that undergoes change in a chemical reation
are new substances fromed as a result of a chemical reaction
is a representation of a chemical reaction in which the react…
are numbers that appear before a formula in a chemical equati…
Reactant
is a substance that undergoes change in a chemical reation
Products
are new substances fromed as a result of a chemical reaction
18 terms
Physical Science Chapter 7 Review
Ways to tell a chemical reaction has t…
The 7 diatomics
Exothermic Reaction
Endothermic Reaction
-formation of gas... -formation of a solid (precipitate)... -color…
H2, N2, O2, F2, Cl2, Br2, I2
release of energy, product has less energy than reactant
absorbs energy, product has more energy than reactant
Ways to tell a chemical reaction has t…
-formation of gas... -formation of a solid (precipitate)... -color…
The 7 diatomics
H2, N2, O2, F2, Cl2, Br2, I2
19 terms
Physical Science Chapter 7 vocabulary
Reactants
Products
Chemical Equation
Coefficients
the substances that undergo change
new substances formed as a result of that change
is a representation of a chemical reaction in which the react…
the numbers that appear before the formulas
Reactants
the substances that undergo change
Products
new substances formed as a result of that change
12 terms
Physical science vocab chapter 7
Magnetic pole
Electromagnet
Electromagnetism
Solenoid
Region on a magnet where the magnetic force exerted by a magn…
Temporary magnet created when there is a current in a wire coil
The interaction between electric charges and magnets
A cylindrical coil or wire, used to produce a magnetic field…
Magnetic pole
Region on a magnet where the magnetic force exerted by a magn…
Electromagnet
Temporary magnet created when there is a current in a wire coil
14 terms
Physical Science Chapter 7
Coefficient
Subscript
formula
Multiplication
Large Number in front
Small Number in the lower Right
The Group of Subscript, coefficient and stuff
pretty much just multiplication
Coefficient
Large Number in front
Subscript
Small Number in the lower Right
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