Dr. Overy's KBase: Resources for Teaching and Learning
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  • infrared radiation
    Energy in the region of the electromagnetic radiation spectrum at wavelengths longer than those of visible light,but shorter than those of radio waves
  • Interference of Waves
    Interference refers to the superposing of two or more coherent waves to produce regions of maxima and minima in space, according to the principle of superposition.
  • Interval
    The quantity between readings, eg a set of 6 readings equally spaced over a distance of 50 cm would give an interval of 10 centimetres.
  • Joule
    A unit of energy.
  • KS3
    Key Stage 3 (KS3) is the legal term for the three years of schooling in maintained schools in England and Wales normally known as Year 7, Year 8 and Year 9, when pupils are aged between 11 and 14.
  • KS4
    Key Stage 4 (KS4) is the legal term for the two years of school education which incorporate GCSEs, and other exams, in maintained schools in England, Wales and Northern Ireland—normally known as Year 10 and 11 in England and Wales, and Year 11 and Year 12 in Northern Ireland, when pupils are aged between 14 and 16.
  • Land Degredation
    A process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land
  • Land Speculators
    People  who buy land with the sole intention of selling it on for a profit.
  • Lichen
    A fungus in symbiotic union with an alga and having a greenish, gray, yellow, brown, or blackish colour
  • luteinising hormone
    A hormone secreted by the anterior pituitary gland that stimulates ovulation in females and the synthesis of androgen in males
  • Matt
    dull : without a shine
  • Measurement Error
    The difference between a measured value and the true value.
  • Microbes
    A microorganism, especially a bacterium causing disease or fermentation
  • Microorganism
    An organism that can be seen only with the aid of a microscope and that typically consists of only a single cell.
  • Moment of a Force
    The moment of a force about a point is the product of the force with the perpendicular distance of the force from that point.
  • Motor Neurone
    A nerve cell forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland
  • MRSA
    A  type of bacteria that's resistant to a number of widely used antibiotics
  • Nanotechnology
    The manipulation of matter on an atomic, molecular, and supramolecular scale.
  • Nervous System
    The network of nerve cells and fibres which transmits nerve impulses between parts of the body.
  • Neurones
    Nerve cells that receive and send electrical signals over long distances within the body
  • Newton's First law
    A body continues in its state of rest or constant velocity unless a resultant  force acts on it.
  • Newton's Second Law
    The rate of change of momentum of a body is directly proportional to the resultant force acting on it and occurs in the direction of the force.  (or  F=ma ,where m = mass, a = acceleration and F=resultant force)
  • Newton's Third Law
    If body A exerts a force on body B, then body B exerts an equal but opposite force on body A.
  • Nitrogen Oxides
    Harmful gases which contribute to acid rain and global warming. They are emitted as a byproduct of fossil fuel combustion.
  • Noise Pollution
    Noise pollution or noise disturbance is the disturbing or excessive noise that may harm the activity or balance of human or animal life
  • non-contact force
    force applied to an object by another body that is not in direct contact with it.
  • Nucleus
    A membrane-bound organelle within a eukaryotic cell that contains most of the cell's genetic material
  • OCR
    Oxford, Cambridge and RSA Examinations (OCR) is an examination board that sets examinations and awards qualifications (including GCSEs and A-levels). It is one of England,Wales and Northern Ireland's five main examination boards.
  • Oestrogen
    A female hormone that causes development and change in the reproductive organs
  • Oral Contraceptives
    Oral contraceptives are medicines taken by mouth to help prevent pregnancy. They are also known as the Pill, OCs, or birth control pills

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