Questions by anonymous

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1 answer

Figures 2(a) and 2(b) show two circuit diagrams with identical lamps and identical cells

asked Jun 21, 2021 in Physics Form 1

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1 answer

The critical angle for a ray travelling from glass to air is 42º. Determine the refractive index of the glass

asked Jun 21, 2021 in Physics Form 1

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Explain what happens to the speed of a water wave as it moves from the shallow to the deep end in a ripple tank

asked Jun 21, 2021 in Physics Form 1

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State two measurements that should be taken for one to decide whether a lead acid accumulator is due for charging.

asked Jun 21, 2021 in Physics Form 1

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1 answer

Figure 1 shows a gold leaf electroscope

asked Jun 21, 2021 in Physics Form 1

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1 answer

State the observation made on the image in a pin hole camera when the distance between thie object and the pin hole is reduced.

asked Jun 21, 2021 in Physics Form 1

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Figure 15 shows a setup used to study Brownian motion in liquids.

asked Jun 21, 2021 in Physics Form 1

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Its observed that when a liquid is heated its volume increases. Explain this observation using the kinetic theory of matter

asked Jun 21, 2021 in Physics Form 1

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State the meaning of the term matter

asked Jun 21, 2021 in Physics Form 1

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Figure 14 shows a setup that can be used to determine the specific latent heat of vaporisation of water. A beaker containing some water was placed on a weighing balance and an immersion heater rated 500 W immersed in the water.

asked Jun 21, 2021 in Physics Form 3

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Figure 13 shows a pulley system used to raise a mass of 5 kg through a height of 2 m when a force of 60N is applied. (Acceleration due to gravity g is 10ms-2)

asked Jun 21, 2021 in Physics Form 2

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Figure 12 shows a simple machine.

asked Jun 21, 2021 in Physics Form 2

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A fixed mass of gas initially at 20°C is heated at constant pressure until its volume doubles. Determine its final temperature.

asked Jun 21, 2021 in Physics Form 3

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Figure 11 shows a setup that can be used to verify Charles' Law.

asked Jun 21, 2021 in Physics Form 3

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Figure 10 shows a test-tube inverted and floating inside a plastie bottle containing some water. The bottle is then sealed.

asked Jun 21, 2021 in Physics Form 1

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Figure 9 shows a setup used by a student to investigate how a siphon works.

asked Jun 21, 2021 in Physics Form 1

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Figure 8 shows a bucket filled with water and tied to one end of a string which is used to whirl it in a vertical circular path with a uniform speed v.

asked Jun 21, 2021 in Physics Form 1

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An object placed on the surface of water in a beaker starts to sink immediately. It is observed that it stops sinking when half of its volume is below the water surface. State the reason for this observation.

asked Jun 21, 2021 in Physics Form 1

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1 answer

Figure 7 shows a box placed on a weighing balance. The balance is placed on the floor of a lift.

asked Jun 21, 2021 in Physics Form 1

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It is observed that when methylated spirit is poured on the palm, the palm feels colder as it dries up. Explain this observation.

asked Jun 21, 2021 in Physics Form 3

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