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Category: GRADE 11 PHYSICAL SCIENCES

Waves,Sound & light

QUESTION 1 A diamond glitters in light because of its high refraction index of 2,42 and the small critical angle of the diamond-air boundary. 1. Calculate the critical angle of a diamond-air interface. Take the refraction index of air as 1. (4) The angle…

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FARADAY’S LAW

ACIDS AND BASES

Ohm’s Law

If the physical conditions remain constant, the voltage across a resistor is directly proportional to the current through it.   V ∝ I V = kI k = R = resistance V = IR The physical conditions are temperature, pressure and humidity etc. E.g.1 When…

Ohms Law

Molecular Structure

Waves and Sound

Waves and Sound Exercise 1 1 1.1 Explain the difference between longitudinal and transverse waves and give an example of each. 1.2 It is possible to represent a longitudinal wave by drawing a graph having the wave-form of a transverse wave. Explain carefully what…

Resultant of perpendicular vectors

EXAMPLES OF WAVES

        English: Standing sine waves in a box (Photo credit: Wikipedia)

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