S C I E N C E T E R M O N E

STUDY
PLAY

Terms in this set (...)

CONDUCTORS
a material that allows heat and electricity to flow easily through it
INSULATORS
a material that does not allow heat and electricity to flow easily through it
STATIC ELECTRICITY
electric charge at rest; generally produced by friction or induction
CURRENT ELECTRICITY
the controlled flow of electrons through a conductor
LAW OF FORCES
newton's second law, which states that the force 'f' acting on a body is equal to the mass 'm' of the body multiplied by the acceleration a of its centre of mass (f = ma)
CIRCUIT
an electrical device that provides a path for electrical current to flow
SERIES CIRCUIT
an electrical circuit in which all parts of the circuit are connected in series
PARALLEL CIRCUIT
an electrical circuit in which the current can be split into different paths
WIRE (CIRCUIT SYMBOLS)
AMMETER (CIRCUIT SYMBOLS)
POWER PACK (CIRCUIT SYMBOLS)
BATTERY (CIRCUIT SYMBOLS)
VOLTMETER (CIRCUIT SYMBOLS)
OHMMETER (CIRCUIT SYMBOLS)
RESISTOR (CIRCUIT SYMBOLS)
OPEN SWITCH (CIRCUIT SYMBOLS)
LAMP (CIRCUIT SYMBOLS)
VARIABLE RESISTOR (CIRCUIT SYMBOLS)
CLOSED SWITCH (CIRCUIT SYMBOLS)
JOINED WIRES (CIRCUIT SYMBOLS)
AMMETER (DIRECTIONS)
must be connected in series in the circuit, positive side must be connected nearest to the positive terminal of the battery (electric cell), and vice versa
VOLTMETER (DIRECTIONS)
must be connected in parallel to the circuit, the positive side must be connected to the positive terminal of the cell
LUMINOUS
giving off light
NON-LUMINOUS
not giving off light
OPAQUE
not transparent or clear; dense and difficult to understand
TRANSPARENT
clear, able to see through
TRANSLUCENT
some light pass through, but can't see through clearly (not transparent nor opaque)
PLANE MIRROR
a mirror with a flat surface that produces an upright, virtual image the same size as the object
CONCAVE MIRROR
a mirror with a surface that is curved inward and produces a larger, upright image
CONVEX MIRROR
a mirror with a surface that is curved outward and that produces a smaller, upright image
LENS
a piece of clear material that bends, or refracts light rays passing through it
CONCAVE LENS
a lens that is thicker at the edges than in the middle that bends light rays away from one another
CONVEX LENS
a lens that is thicker in the middle than at the edges and bends light rays towards one another
LAW OF REFLECTION
angle of incidence = angle of reflection
ELECTROMAGNETIC SPECTRUM
the range of wavelengths or frequencies over which electromagnetic radiation extends
WAVELENGTH
the distance between two corresponding parts of a wave, relates to the pitch of a song
FREQUENCY
the number of complete wavelengths that pass a point in a given time
EM RADIATION
the transfer of energy by electromagnetic waves
OHM'S LAW (FORMULAS)
V=IR, I=V/R or R=V/I
OHM'S LAW (DEFINITION)
relates to the calculation of current, voltage or resistance
OHMIC
a material where there is a linear trend between current, resistance and voltage
NON-OHMIC
a material where there is no linear trend between current, resistance and voltage
ELECTRICAL RESISTANCE
a measure of how difficult it is for electrons to flow through part of a circuit
OHM
unit of measurement used in resistance
VOLTAGE
a measure of the difference in electrical energy between two parts of a circuit
VOLTS
unit of measurement used in voltage
CURRENT
the rate at which electrical charge flows through a circuit
AMPERES
unit of measurement used in current
CURRENT IN SERIES CIRCUITS
constant throughout the circuit, as more components are added, the current decreases
CURRENT IN PARALLEL CIRCUITS
the total amount in all branches is the same as the amount outside the branches, adding more branches will increase the current
VOLTAGE IN SERIES CIRCUITS
the total across each component adds up to equal the amount of the power source
VOLTAGE IN PARALLEL CIRCUITS
individual charge passes through only one path, the voltage across each component is equal to the voltage of the battery
NEUTRONS
the particles of the nucleus that have no charge
PROTONS
positively charged particles located in the nucleus
ELECTRONS
negatively charged particles found outside the nucleus
TOTAL CURRENT IN SERIES (FORMULA)
i1 = i2 = i3
TOTAL VOLTAGE IN SERIES (FORMULA)
VT = V1 + V2 + V3
TOTAL RESISTANCE IN SERIES (FORMULA)
RT = R1 + R2 + R3
TOTAL RESISTANCE IN PARALLEL (FORMULA)
1 / R1 + 1 / R2 + 1 / R3 = 1 / RT
REFRACTION
when light moves between materials with different densities it can slow down or speed up
INCIDENT AND REFLECTED RAYS
ANGELS OF INCIDENCE AND REFLECTION
ANGEL OF REFRACTION
INSULATION
when heat or energy transfer between objects is being blocked
CONDUCTION
when heat or energy is transferred between objects
ELECTRICITY
the movement of electrons

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com.
Click to see the original works with their full license.