the distance from the original position in a particular direction
What is displacement
100
measure of the average kinetic energy of the molecules in a substance
What is temperature
100
is a measure of how ‘in step’ different waves are
What is phase difference
100
is defined as the ratio between p.d. and current
What is resistance?
100
the quantity that defines how fast light travels in a given medium
What is refractive index
200
the product of force and velocity
What is power
200
is the energy required to raise the temperature of an object by 1 K
What is thermal capacity
200
is represented by the symbol ω
What is angular frequency
200
the difference in electrical energy per unit test charge between two points.
What is potential difference (voltage)?
200
the angle of refraction for the critical angle of incidence
What is 90 degrees
300
the ratio of force to the extension produced
What is spring constant
300
two objects at the same temperature
What is thermal equilibrium
300
are formed when two waves of identical amplitude and frequency which are travelling in opposite directions meet. The result is a wave pattern whose shape does not travel through space.
What is a standing wave
300
1/R = 1/R1+1/R2+1/R3+....
What is the equation for the equivalent resistance for a parallel circuit?
300
if two waves arrive at a point with a phase difference of 4pi
What is constructive interference
400
ratio of useful power out to total power in
What is efficiency
400
PV = nRT
What is equation of state for ideal gas
400
these type of waves involve oscillations that are in the same direction as the direction of energy transfer.
What are longitudinal waves
400
the force per unit charge on a test point charge placed at that location.
What is the the electric field at a certain location
400
this can be increased by increasing the wavelength of light used in the pattern
What is the bandwidth ?
500
is the product of the resultant force acting on the object and the time for which this force acts
What is impulse
500
change of state from liquid to vapor that happens at all temperatures
What is evaporation
500
points of constructive interference in a standing wave
What are antinodes ?
500
the voltage across the terminals of a battery in an open circuit
What is emf ?
500
easily observed with sound waves in everyday life but not with light