A-LEVEL OCR ADVANCING PHYSICS B SUPER SET [WELL IDENTIFIED] REAL!!REAL!!!

A-LEVEL OCR ADVANCING PHYSICS B
SUPER SET [WELL IDENTIFIED]
REAL!!REAL!!!




Curvature - ANS✔✔---The amount by which a line is curved.

Radius - ANS✔✔---The curvature is the reciprocal of the _____.

Rays - ANS✔✔---When light is modelled as _____, the light travels in lines.

Wavefronts - ANS✔✔---When light is modelled as _____, the light travels as parallel
lines/bars, perpendicular to their motion.


D - ANS✔✔---The unit for dioptres.

Focal Length - ANS✔✔---The power of a lens is the reciprocal of its _____ _____.

Focal Length - ANS✔✔---The distance between the centre of a lens and its focus.

Plane - ANS✔✔---_____ wave-fronts are seen to have negligible curvature.

Infinite - ANS✔✔---The radius of a line with no curvature is assumed to be _____.

v - ANS✔✔---1/__ = 1/u + 1/f

u - ANS✔✔---1/__ = 1/v - 1/f

f - ANS✔✔---1/__ = 1/v - 1/u

Focus - ANS✔✔---The point at which light converges.

Curvature - ANS✔✔---Lenses add and remove _____.

,Power - ANS✔✔---The amount of curvature added by a lens is known as its _____.

Dioptres - ANS✔✔---Lens power is measured in _____.



Image - ANS✔✔---The _____ distance is denoted by the letter v.

Object - ANS✔✔---The _____ distance is denoted by the letter u.

Negative - ANS✔✔---The object distance will have a _____ sign.

Focal Length - ANS✔✔---The _____ _____ is denoted by the letter f.

Magnification - ANS✔✔---The amount by which the size of an object is increased by
a lens.

Magnification - ANS✔✔---_____ = Image Height / Object Height

Magnification - ANS✔✔---_____ = v / u

Image Height - ANS✔✔---_____ _____ = Magnification x Object Height

Object Height - ANS✔✔---_____ _____ = Image Height / Magnification

Image Distance - ANS✔✔---_____ _____ = Magnification x u

Object Distance - ANS✔✔---_____ _____ = v / Magnification

Charge Coupled Device - ANS✔✔---The full name for a CCD is a _____ _____
_____.

Picture Element - ANS✔✔---The full name for a pixel is a _____ _____.

Binary - ANS✔✔---The system of recording data as either 1s or 0s

Byte - ANS✔✔---The name for 8 bits.

0 - ANS✔✔---The smallest value that can be represented with 8 bits.

255 - ANS✔✔---The largest value that can be represented with 8 bits.

256 - ANS✔✔---The number of different values that can be represented with 8 bits.

N - ANS✔✔---__ = 2ᵇ

b - ANS✔✔---__ = log₂N

Resolution - ANS✔✔---_____ = Width of object / Number of pixels across object

,Brighter - ANS✔✔---By increasing the value on each pixel until the brightest pixel is
255, the image can be made _____.

Smooth - ANS✔✔---By taking the mean or median of a pixel and its surrounding
pixels, an image can be made more _____.

Edges - ANS✔✔---By subtracting the values of neighbouring pixels, _____ can be
found.

Contrast - ANS✔✔---By scaling up the range of values the _____ can be increased.

Frequency - ANS✔✔---The value denoted by the letter f.

Speed - ANS✔✔---The value denoted by the letter v.

Wavelength - ANS✔✔---The value denoted by the letter λ.

v - ANS✔✔---__ = f x λ

f - ANS✔✔---__ = v / λ

c - ANS✔✔---The letter used to denote the speed of light in a vacuum.

3 - ANS✔✔---The speed of light in a vacuum is __x10⁸ ms⁻¹.

8 - ANS✔✔---The speed of light in a vacuum is 3x10^__ ms⁻¹.

T - ANS✔✔---__ = 1 / f

f - ANS✔✔---__ = 1 / T

Time Period - ANS✔✔---The value denoted by the letter T.

Polarised - ANS✔✔---_____ light oscillates in only one plane.

No - ANS✔✔---Polarised light passing through a filter placed perpendicular to its
oscillation will have _____ resultant oscillation.

Nanometres - ANS✔✔---The full name of the unit which wavelengths of visible light is
usually given in.

nm - ANS✔✔---The abbreviation for the unit nanometres.

Signal - ANS✔✔---A transfer of information.

Analogue - ANS✔✔---Continuous signals are described as being _____.

Digital - ANS✔✔---Discrete signals are described as being _____.

, Noise - ANS✔✔---Random distortion on a signal which can occur in digitisation or
transmission.

Sampling - ANS✔✔---Converting the displacement of a continuous signal into digital
information.

Resolution - ANS✔✔---The smallest determinable change in potential difference.

Resolution - ANS✔✔---_____ = p.d. Range of Signal / Number of Quantisation Levels

p.d. Range of Signal - ANS✔✔---_____ of _____ _____ = Resolution x Number of
Quantisation Levels

Number of Quantisation Levels - ANS✔✔---_____ of _____ _____ = p.d. Range of
Signal x Resolution

Maximum Useful Number of Levels - ANS✔✔---_____ _____ _____ of _____ = Total
Signal Variation / Noise Variation

Total Signal Variation - ANS✔✔---_____ _____ _____ = Maximum Useful Number of
Levels x Noise Variation

Noise Variation - ANS✔✔---_____ _____ = Total Signal Variation / Maximum Useful
Number of Levels

b - ANS✔✔---__ = log₂(Total Signal Variation / Noise variation)

2 - ANS✔✔---Minimum Sampling Rate > __ x Highest Frequency

Highest Frequency - ANS✔✔---Minimum Sampling Rate > 2 x _____ _____

Minimum Sampling Rate - ANS✔✔---_____ _____ _____ > 2 x Highest Frequency

Alias - ANS✔✔---An incorrect digital reconstruction of a continuous signal as a result
of a low sampling rate.

Bit Rate - ANS✔✔---_____ _____ = Sample Rate x Bits per Sample

Bits per Sample - ANS✔✔---_____ per _____ = Bit Rate / Sample Rate

Sample Rate - ANS✔✔---____ _____ = Bit Rate / Bits per Sample

Signal Duration - ANS✔✔---_____ _____ = Size of Signal (bits) / Bit Rate

Size of Signal - ANS✔✔---_____ of _____ = Signal Duration x Bit Rate

Bit Rate - ANS✔✔---_____ _____ = Size of Signal (bits) / Signal Duration

Cyber-bullying - ANS✔✔---Harassing or abusing somebody over a digital device.