How many electrons does the second energy level hold?
Front
8 electrons
Back
Liquid
Front
Definite volume, can flow(takes shape of container), medium energy.
Back
Chemical Properties
Front
Properties that can only be observed by changing the composition of the object. (e.g. flammability, oxidation.)
Back
Fusion
Front
Joining of atoms.
Back
Physical Properties
Front
Properties that can be measured and observed without changing the composition of the object. (e.g. color, texture, malleability)
Back
Half Life
Front
Time it takes for half of the atoms in radioactive material to decay.
Back
Acid
Front
A substance with a pH lower than 7 on the pH scale. Properties: produces H_30 in water, tastes sour, corrodes metals, turns blue litmus paper to red.
Back
Stable
Front
Doesn't change
Back
Solvent
Front
Dissolving medium.
Back
Nucleus
Front
Center of an atom, made up of protons and neutrons.
Back
Boyle's Law
Front
At a constant temperature, the volume and pressure of a gas are inversely related.
Back
Plasma
Front
Extremely high temperatures, ionized state of matter as found in the sun.
Back
Pure Substance
Front
One substance.
Back
Ionic Bonding
Front
Transfer of electrons.
Back
Decomposition
Front
A compound splits. AB = A + B
Back
Law of Conservation of Matter
Front
Matter cannot be created nor destroyed.
Back
Cation
Front
Positive ion.
Back
Cons of Nuclear Energy(fission)
Front
Waste is difficult to dispose of, pollution is deadly.
Back
Matter
Front
Anything that takes up space.
Back
Charles' Law
Front
At a constant pressure, the volume and temperature of a gas are directly related.
Back
3 Particles of Radiation (least to most energy)
Front
Alpha, Beta, Gamma.
Back
Parts of the atom
Front
Protons, electrons, neutrons.
Back
Solute
Front
Dissolved particles.
Back
Influences of phase change
Front
Pressure, absolute temperature, and volume.
Back
Covalent Bonding
Front
Sharing of electrons.
Back
Isotope
Front
Same element with different neutrons than average. All atoms are isotopes.
Back
Gas
Front
No definite shape or volume, high energy.
Back
Solid
Front
Definite shape and volume, cannot flow, low energy.
Back
Valence Electrons
Front
Electrons in the outermost shell/energy level
Back
Volume
Front
Measure of space occupied.
Back
Single Replacement
Front
One element replaces another. AB + C = AC + B
Back
Gay-Lussac's Law
Front
At a constant volume, the pressure and temperature of a gas are directly related.
Back
Radioactivity
Front
Immediate break up of an element and emitting of energy.
Back
How many electrons does the first energy level hold?
Front
2 electrons
Back
Pros of Nuclear Energy(fission)
Front
Little air pollution, cheap, little matter
Back
Fission
Front
Splitting of atoms.
Back
Aqueos Solution
Front
Contains water as the solvent.
Back
Ion
Front
Different electrons, charged.
Back
Heterogenous Mixture
Front
Not uniform, can see the parts of the mixture.
Back
Base
Front
A substance with a pH higher than 7 on the pH scale. Properties: produces OH- in water, tastes bitter, soapy and slippery, turns red litmus paper to blue.
Back
Atomic Number
Front
An atom's identity, number of protons.
Back
Homogenous Mixture
Front
Uniform mix, can't see different parts. Called a solution.
Back
Energy Levels
Front
Possible locations around an atom for electrons that have a specific amount of energy.
Back
Double Replacement
Front
Two elements switch places. AB + CD = AC + BD
Back
Mixture
Front
Blend of two substances. The substances keep their original properties.
Back
Synthesis
Front
Two elements combine. A + B = AB
Back
Section 2
(50 cards)
Joule
Front
SI unit of energy.
Back
Heat Capacity
Front
Raise whole object by 1ºC
Back
Gravitational Force
Front
Force of attraction between two objects.
Back
Force (equation)
Front
F = ma.
Back
Mechanical Energy
Front
Energy from motion, kinetic and potential energy.
Back
Weight
Front
A measure of gravitational force pulling down on an object.
Back
Chemical Energy
Front
Energy from chemical bonds.
Back
Efficiency
Front
Output * 100%/ Input
Back
Temperature
Front
Heat of object.
Back
Tension Force
Front
A force dealing with strings, ropes, cables, etc.
Back
Photoelectric Energy
Front
Electricity from light.
Back
Convection
Front
Heat transfer through a fluid; make current where heat rises.
Back
Specific Heat
Front
The amount of heat it takes to raise the temperature of 1 gram of substance by 1ºC.
Back
Acceleration
Front
The rate of change of velocity. a = ∆v/∆t. Units: m/s^2.
Back
Conduction
Front
Heat transfer between two solids that are touching. There must be direct contact.
Back
Force
Front
A push or pull on an object.
Back
Open System
Front
Things move in and out of system.
Back
Radiation (transfer)
Front
Transfer of energy by electromagnetic waves, can travel through a vacuum.
Back
Perpetual Motion Machines
Front
Would run forever without energy input, would break the Law of Conservation of Energy.
Back
Endothermic
Front
A chemical reaction that absorbs energy(feels hot).
Back
Insulators
Front
Heat/Electricity has a hard time passing through easily.
Back
Polyatomic Ions
Front
Groups of atoms that stay together and have an overall charge. The name usually ends in -ate or -ite.
Back
Newton's 2nd Law
Front
Force, mass and acceleration are related. The force applied to an object is the mass of the object multiplied by the acceleration of the object.
Back
Newton's 3rd Law
Front
Every action is accompanied by an equal and opposite reaction. Forces come in pairs.
Back
Closed System
Front
Nothing can escape system.
Back
Balanced Forces
Front
No movement. Net force of 0.
Back
Friction
Front
Force that opposes motion.
Back
Momentum
Front
Ability to resist change.
Back
Inertia
Front
All objects resist a change in their motion.
Back
Thermonuclear Energy
Front
Energy from nuclear fission and fusion.
Back
Velocity
Front
Speed with direction. v = x/t.
Back
Mass and acceleration are _____________ related.
Front
Inversely.
Back
Molecular Compounds
Front
Formed by nonmetals, the name tells you the number of atoms.
Back
Physical Change
Front
Changes appearance of object, doesn't create a new substance.
Back
Kinetic Theory
Front
All matter is made of tiny particles; the higher the temperature, the faster they move; at a constant temperature, heavier particles move slower while smaller particles are faster.
Back
Unbalanced Forces
Front
Motion, changes velocity, object accelerates.
Back
Law of Conservation of Energy
Front
Energy cannot be created or destroyed, but it can be transferred from one form to another.
Back
Signs of Chemical Change
Front
Color change, energy release or absorption, gas production(usually in bubbles), formation of a precipitate(a solid).
Back
Normal Force
Front
A force of support, goes against gravity.
Back
Calorie
Front
Unit of energy.
Back
Gravity
Front
Force one object exerts on another. The gravitational pull of two objects is determined by the distance between the objects and the objects' mass.
Back
Energy
Front
The ability to do work.
Back
Work
Front
Applied force that makes an object move. W = fd. Measured in Newton Meters(Joules).
Back
Chemical Change
Front
Creates a new substance.
Back
Electromagnetic Energy
Front
Energy emitted from waves.
Back
Speed
Front
How fast an object is going, how far it traveled over a period of time. s = d/t.
Back
Exothermic
Front
A chemical reaction that releases energy(feels cold).
Back
Conductors
Front
Heat/Electricity passes through easily. Usually metals.
Back
Newton's 1st Law
Front
An object in motion will stay in motion, while an object at rest will stay at rest.
Back
Newton's Law of Gravitation
Front
Two objects always exert gravitational force on each other.
Back
Section 3
(26 cards)
Closed Circuit
Front
Complete circuit; no gaps. Electricity can flow.
Back
Power
Front
Rate at which work is done. P = W/t. Measured in watts.
Back
Static Electricity
Front
Imbalance of positive and negative charges.
Back
Electricity
Front
The flow of electrons.
Back
Transverse Wave
Front
Medium travels perpendicular to the motion of the wave.
Back
Open Circuit
Front
Incomplete circuit; there is a gap. Electricity cannot flow.
Back
Frequency
Front
How many waves pass by a point in one second, measured in hertz.
Back
Ampere
Front
Unit of electrical current.
Back
Electricity travels from ____ potential to ____ potential.
Front
high, low.
Back
Wavelength.
Front
The length from one point on a wave to where that point replicates (crest to crest, trough to trough, rest to rest). Speed of Light/Frequency of Wave
Back
Compression Wave
Front
Medium travels parallel to the motion of the wave
Back
Parallel Circuit
Front
Circuit with multiple paths; electricity can still flow if one path gets obstructed.
Back
Wave
Front
Disturbance traveling through space, usually carries energy.
Back
Mechanical Waves
Front
Waves that require a medium(matter) to travel through.
Back
Mechanical Advantage
Front
When a machine takes a small input force and increases the magnitude of the output force. It has no units.
Back
Electrolytes
Front
Conductors.
Back
Curent and potential difference/voltage are ______ related.
Front
directly
Back
Electromagnetic Spectrum
Front
Describes different electromagnetic waves.
Back
Machines make work . . .
Front
easier.
Back
Mechanical Advantage (equations)
Front
output force /input force, resistance force/ effort force, effort distance/resistance distance, # of pulley ropes.
Back
Waves on the Electromagnetic Spectrum (least to greatest frequency/wavelength).