In MS Excel, comments used in cells are called?

• A. cell tip
• B. smart tip
• C. soft tip
• D. web tip

The implementation of indirect rule was supervised by the __________

• A. Chiefs and Councils of elders
• B. British officials
• C. spiritual leaders of the land
• D. educated elite

The recurrent device used is ________

• A. synecdoche
• B. apostrophe
• C. metonymy
• D. paradox

From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences.

I told them I would come back as soon as I _____

• A. should
• B. can
• C. could
• D. will

In the oil drop experiment, Millikan determined the

• A) charge to mass ratio of the electron
• B) mass of the electron
• C) charge of the electron
• D) mass of the proton

Simplify \(\sqrt{\frac{(0.0023 \times 750)}{(0.00345 \times 1.25)}}\)

• A. 15
• B. 20
• C. 40
• D. 75

A beef cow gained 75 kg over a period of two months and two days. What is its average weight gain?

• A. 0.83 kg
• B. 1.21 kg
• C. 1.28 kg
• D. 2. 25kg

If line p = 5x + 3 is parallel to line p = wx + 5. Find the value of w.

• A. 7
• B. 3
• C. 6
• D. 5

(a) The equation y = \(\alpha\) sin (wt - kx) represents a plane wave travelling in a medium along the x-direction, being the displacement at the point x at time t.

(i) Given that x is in metres and t is in seconds, state the units of k and w

(ii) What physical quantity does \(\frac{W}{k}\) represent? Justify your answer

(iii) State whether the wave is travelling in the positive or negative x-direction.

(b)(i) What are beats?

(ii) A sonometer wire has a frequency of 259 Hz. It is sounded alongside a tuning fork of frequency 256 Hz. Calculate the beat frequency

(iii) The sonometer wire in (b)(ii) above is under a tension of 1200 N. If a metre of the wire has a mass of 0.03 kg, calculate the length l of the wire when it is vibrating in the fundamental mode.

(c) List two similarities between the human eye and the photographic camera.

An entrepreneur is likely to make more profits when

• A. expenditure is more than revenue
• B. competitors charge lower prices
• C. costs per unit output falls
• D. quantity of output reduces