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Light helical spring obeying Hooke’s Law was attached to a fixed support. When a 5N load was hung on it, the length of the spring was 160mm. when a 10N load was hung on it the length became 200mm. determine

answered Jul 29, 2021 in Physics Form 1

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The figure below shows a pulley system.

answered Jul 29, 2021 in Physics Form 1

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A circuit consists of a battery, a metal wire, an ammeter and a switch connected in series. The switch is closed and the ammeter reading noted. The metal wire is now heated.

answered Jul 29, 2021 in Chemistry Form 2

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A hole is made at the middle of a tall jar container and water is poured into it to the level shown. See figure below.

answered Jul 29, 2021 in Physics Form 1

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State the reason why the speed of water at a wider section of a river is lower than at a narrower section.

answered Jul 29, 2021 in Physics Form 1

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A heavy log lying on the ground requires more energy to start moving than the same log which is already in motion. Explain why.

answered Jul 29, 2021 in Physics Form 1

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The system in the figure below is a set-up which can be used to illustrate expansion of liquids.

answered Jul 29, 2021 in Physics Form 1

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Figure below shows two set-ups by a student using identical lamps and thermometers.

answered Jul 29, 2021 in Physics Form 2

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A tight rope walker carries a pole to maintain stability. Explain how he uses it to achieve it.

answered Jul 29, 2021 in Physics Form 2

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Lycopodium is lightly sprinkled on a clean water surface in a large tray. A red hot needle is plunged into the centre of the water surface. State and explain the observation made.

answered Jul 29, 2021 in Physics Form 1

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Sketch a velocity time graph for a body thrown vertically upwards to a maximum height.

answered Jul 29, 2021 in Physics Form 3

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A wooden block of mass 2kg is placed on a horizontal surface. A horizontal force of 14N is exerted on it which makes it to accelerate at 5ms-1.

answered Jul 29, 2021 in Physics Form 1

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State and explain any changes observed in a Brownian motion, when the temperature of the air in the smoke cell is increased.

answered Jul 29, 2021 in Physics Form 1

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The ticker-time tape below shows a section of a long tape. The dots were made at a frequency of 40Hz.

answered Jul 29, 2021 in Physics Form 3

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A lorry of weight 20000N is brought to rest on a uniform bridge, by applying brakes, as shown in the figure below. The weight of the bridge is 60000N and is 20m long. It is supported at P and Q. calculate the reactions at P and Q.

answered Jul 29, 2021 in Physics Form 1

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State one limitation of the micrometer screw gauge.

answered Jul 29, 2021 in Physics Form 1

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Figure below shows part of a micrometer screw gauge. Use the information and the figure to answer questions 1 and 2.

answered Jul 29, 2021 in Physics Form 1

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Describe EIGHT factors that affect the rate of transpiration

answered Jul 28, 2021 in Biology Form 3

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Give THREE types transpiration

answered Jul 28, 2021 in Biology Form 3

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Define transpiration

answered Jul 28, 2021 in Biology Form 3

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