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IB WAVES SPECIAL. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15. £100 The largest displacement of a wave is called the. Frequency. Angular frequency. A:. B:. Phase. Amplitude. C:. D:. Excellent!. Unlucky!. That’s incorrect. £200 Perpendicular to the wavefront is the…. Ray. phase. A:. B:.
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£100 The largest displacement of a wave is called the Frequency Angular frequency A: B: Phase Amplitude C: D:
Unlucky! That’s incorrect
£200 Perpendicular to the wavefront is the… Ray phase A: B: Angle of incidence Refractive index C: D:
Sorry That’s incorrect…
£300 The shortest distance between parts of a wave that are moving in phase… Amplitude Period A: B: Wavelength Tuesday C: D:
Oh dear! That’s incorrect…
£500 Angular frequency (ω) = 2πf 2π/f A: B: f/2π 2πf2 C: D:
Sorry That’s incorrect…
£1,000 When are oscillations are parallel to the direction of energy transfer? Stationary waves Transverse waves A: B: Simple harmonic motion Longitudinal waves C: D:
Unlucky! You should know this!
` £2,000 Wavelength of about 1 x 10-10 m? Gamma rays X - rays A: B: Visible light Ultra-violet C: D:
Oh no! That’s incorrect!…
£4,000 You get constructive interference when the path difference of 2 waves is… (n + ½)λ ½λ A: B: fλ nλ C: D:
Incorrect So near and yet so far!
` £8,000 The acceleration of a SHM oscillator is a maximum when … x = o x = ω A: B: x = -ω2xo x = xo C: D:
Sorry! That’s incorrect… I suck!
£16,000 When was Einstein born? 1779 1979 A: B: 1679 1879 C: D:
Unlucky That’s incorrect…
£32,000 For an object in SHM the velocity is a maximum when… Digestion x = ω x = 0 A: B: x = fλ Digestion x = xo C: D:
Unfortunately… That’s incorrect! I suck.
£64,000 A system makes several oscillations before coming to rest….. Critical damped Overdamped A: B: Underdamped Natural frequency C: D:
I’m sorry That’s incorrect…
£125,000 If a force is applied at a different frequency to the natural frequency we get Forced vibrations Natural oscillations A: B: Resonant oscillations g/cm3 C: D:
Incorrect You should have got that one!
£250,000 ? = ½mω2xo2 Potential energy Kinetic energy A: B: intensity Total energy C: D:
Wrong Choice! That’s incorrect… I suck.
£500,000 Unit of wave intensity? J.m-2 W.m-3 A: B: W.m-2 Decibel C: D:
Sorry! That’s incorrect… I suck.
£ 1,000,000 Destructive interference occurs when the phase difference of two waves is 2π π/2 A: B: π π/4 C: D:
Unlucky You were nearly a millionaire! I wished I was as clever and handsome as Mr Brockman.
Mr Brockman thanks you for playing! Go home and learn your definitions!