All Definitions for Grade 11 Physics

  1.       Work Done

  2.       Power

  3.       Watt

  4.       1 watt

  5.       Simple Machines

  6.       Hydraulic System

  7.       Lever

  8.       Machine

  9.       Mechanical Advantage (MA)

10.     Velocity Ratio (VR)

11.     Efficiency

12.     Input work

13.     Output work

14.     Perfect Machine

15.     Elasticity

16.     Elastic Limit

17.     Hooke’s Law

18.     Stress

19.     Strain

20.     Pressure

21.     pascal.

22.     Atmospheric pressure

23.     Barometer

24.     Torricellian vacuum

25.     Standard Atmospheric Pressure

26.     Sucking

27.     Syringe

28.     Manometer

29.     Buoyancy

30.     Archimedes’ Principle

31.     Hydrometer

32.     Pascal’s Law

33.     Heat Conduction

34.     Thermal conductivity

35.     Temperature Gradient

36.     Heat Current

37.     Heat Convection

38.     Heat Radiation

39.     The best absorber

40.     Black Body

41.     Total Emissive Power

42.     Stephan-Boltzmann’s Law

43.     Emissivity (e)

44.     Kinetic Theory of Gas

45.     Brownian motion

46.     Progressive Waves

47.     Stationary Waves

48.     Nodes

49.     Antinodes

50.     Amplitude

51.     Wavelength

52.     Longitudinal wave

53.     Oscillation

54.     Transverse wave

55.     Frequency

56.     Hertz

57.     Wave equation

58.     How a stationary wave is obtained

59.     Harmonics

60.     Fundamental or First Harmonic

61.     Forced motion

62.     Resonant frequency

63.     Beat

64.     Intensity of a Wave

65.     Diffraction

66.     Refraction

67.     Light

68.     Newton's Corpuscular Theory

69.     Huygens’ Wave Theory of Light

70.     Refraction of Light

71.     Incident ray

72.     Refracted ray

73.     Normal

74.     Angle of Incidence

75.     Angle of Refraction

76.     Principle of reversibility of light

77.     Laws of Reflection

78.     Laws of Refraction

79.     Snell’s Law

80.     Refractive Index

81.     Refractive index using Snell’s laws

82.     Absolute refractive index

83.     Critical angle

84.     Internal reflection

85.     Total Internal Reflection

86.     Prism

87.     Thin prism

88.     Angle of prism

89.     Angle of Deviation (D)

90.     Lateral displacement

91.     Light pipe

92.     Optical fibres

93.     Primary light colours

94.     Secondary light colours

95.     Spectrum

96.     Dispersion

97.     Lens

98.     Thin lens

99.     Converging or Convex lens

100.   Diverging or Concave lens

101.   Sign Convention for Radius of Curvature of Lens

102.   Real image

103.   Virtual image

104.   Principal Axis

105.   Centre of the Lens

106.   Principal Focus of a Convex Lens

107.   Focal Length

108.   Principal Focus of a Concave Lens

109.   Principal Rays for Lens

110.   Lens equation

111.   Lens Formula

112.   Lens-makers’ equation/formula

113.   Sign Convention for Lenses

114.   Magnification

115.   Dioptric power of lens (or) Power of Lens

116.   Unit power or Dioptre

117.   The Common Defects of Vision

118.   Longsightedness

119.   Longsightedness or Hyperopia

120.   Shortsightedness

121.   Shortsightedness or Myopia

122.   Near point of the eye

123.   Magnifying Glass (OR) Simple Microscope

124.   Magnifying Power

125.   Compound Microscope

126.   Telescope

127.   Terrestrial Telescope

128.   Binoculars

129.   coulomb

130.   Electric charge

131.   Coulomb’s Law

132.   Electric Field

133.   Electric Field Intensity

134.   Electric field intensity from Coulomb's law

135.   Electric Lines of Force

136.   Non Uniform Electric Field

137.   Uniform Electric Field

138.   Lightning conductor

139.   Electric potential energy

140.   Electric Potential

141.   Unit of electric potential

142.   1 volt

143.   volt

144.   Voltage

145.   Electric Potential Difference

146.   The Unit of Electric Potential Difference

147.   The Electric Potential due to a Point Charge

148.   Equipotential Surface

149.   Conductors

150.   Insulators

151.   Capacitor

152.   The Charge of the Capacitor

153.   The Potential Difference of the Capacitor

154.   Capacitance of a Capacitor

155.   1 farad (F)

156.   Electric capacity

157.   Surface Charge Density

158.   Dielectric Constant

159.   Capacitor in series

160.   Capacitor in parallel

161.   Electric Current

162.   Electron current

163.   Conventional current

164.   1 ampere

165.   ampere

166.   Ohm’s Law

167.   Resistance

168.   Resistance of a Conductor (using Ohm’s law)

169.   ohm

170.   The resistivity of the conductor

171.   Parallel circuit

172.   Series circuit

173.   Electromotive Force

174.   Unit of Electromotive Force

175.   Available Voltage

176.   Ammeter

177.   Voltmeter

178.   Series Aiding

179.   Series Opposing

180.   Electrical Energy

181.   Electrical Power

182.   kilowatt-hour

183.   Joule’s Law of Electricity and Heat

184.   Fuse

185.   Damaged insulation

186.   Overheating of cables

187.   Damp conditions

188.   Magnet

189.   Bar magnet

190.   Magnetic Field

191.   The Right Hand Rule

192.   Right-hand (wire) rule

193.   Solenoid

194.   Fleming’s Left-hand Rule

195.   Torque

196.   Couple

197.   Electromagnet

198.   Shunt

199.   Electromagnetic induction

200.   Induced current

201.   Faraday's Law of Electromagnetic Induction

202.   Magnetic Flux

203.   Lenz's Law

204.   Alternating currents

205.   Direct Current

206.   Transformer

207.   Thermionic Emission

208.   Diode Characteristics

209.   Triode Characteristics

210.   Semiconductors

211.   Positive Hole

212.   n-type semiconductor

213.   p-type semiconductor

214.   P-N Junction

215.   P-N Junction Diode

216.   Forward Biased

217.   Reverse Biased

218.   Rectifier

219.   Transistor

220.   The Advantages of Transistors

221.   pnp transistor

222.   npn transistor

223.   Electronic Circuit

224.   Logic Gates

225.   Demodulation

226.   Input device

227.   Output device

228.   Data Storage Device

229.   Operating System Software

230.   Application Software

231.   Atom

232.   Atomic mass

233.   Atomic mass number

234.   Mass number

235.   Atomic number

236.   Atomic mass unit (amu or u)

237.   Neutron number

238.   Neutron

239.   Nucleon

240.   Nucleus

241.   Nuclide

242.   Proton

243.   Proton number

244.   Decay (radioactive)

245.   Decay rate

246.   Decay time

247.   Isotopes

248.   Isomer

249.   Electron

250.   electron-volt (eV)

251.   Ion

252.   Ionizing radiation

253.   Irradiate

254.   MeV

255.   Neutrino

256.   Nuclear binding energy

257.   Radioactivity

258.   Radioactive Material

259.   Cathode Rays Tube

260.   CRO

261.   Electromagnetic radiation

262.   Cathode Rays

263.   The Properties of Cathode Rays

264.   X-rays

265.   x-radiation

266.   Production of x-rays in Laboratory

267.   Properties of X-rays

268.   Uses of X-rays

269.   Alpha Rays

270.   Alpha particle (alpha radiation, alpha ray)

271.   Properties of Alpha Rays

272.   Beta Rays

273.   Beta particle (beta radiation, beta ray)

274.   Properties of Beta Rays

275.   Gamma Rays

276.   Properties of Gamma Rays

277.   Activity

278.   becquerel (Bq)

279.   curie (Ci)

280.   Half-Life

281.   Tracers

282.   Detector

283.   Nuclear reactor

284.   Parent nuclide

285.   Photon

286.   Photomultiplier

287.   Pion

288.   QCD

289.   QED

290.   Quark

291.   rad (Radiation Absorbed Dose)

292.   Radioactive dating

293.   Radioactive waste

294.   Radioisotope

295.   Radionuclide

296.   rem (röntgen equivalent man)

297.   Residual strong force

298.   röntgen or roentgen (R)

299.   Scaler

300.   Scintillation counter

301.   Scintillator

302.   Secular equilibrium

303.   Shielding

304.   sievert (Sv)

305.   Source

306.   Stable

307.   Standard Model

308.   Strong interactions

309.   Symmetry

310.   Thermal energy

311.   Transmutation

312.   Ultraviolet radiation

313.   Van de Graaff Accelerator

314.   Weak interaction

315.   Nuclear fission  and Chain Reaction

316.   Carbon dating

317.   Dating rocks

318.   Radiotherapy

319.   Uses of Tracers

320.   Energy and Mass