Recent questions without a selected answer

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Define the following: Ion

asked Aug 5, 2021 in Chemistry Form 2 by anonymous

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The diagram below shows a pith ball in a flask. When a jet of air is blown over the mouth of the flask, the pith ball is found to rise from the bottom. Explain this observation

asked Aug 5, 2021 in Physics Form 1 by anony mous

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Define the following:

asked Aug 5, 2021 in Chemistry Form 1 by anonymous

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The block of wood on the balance in the figure below is a cube of side 20cm Determine its density in kgm−3

asked Aug 5, 2021 in Physics Form 1 by anony mous

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The figure below shows a wave profile

asked Aug 5, 2021 in Physics Form 2 by anony mous

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The figure below shows path of ray of yellow light through a glass prism. The speed of yellow light in the prism is 1.88 x 108m/s.

asked Aug 5, 2021 in Physics Form 3 by anony mous

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An oil drop of average diameter 0.7mm spreads out into a circular patch of diameter 75cm on the surface of water in trough.

asked Aug 5, 2021 in Physics Form 2 by anony mous

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In an experiment to demonstrate Brownian motion, smoke was placed in an air cell and observed under a microscope, Smoke particles were observed to move randomly in the cell.

asked Aug 5, 2021 in Physics Form 1 by anony mous

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The following diagram shows a simplified hydraulic braking system of a car.

asked Aug 5, 2021 in Physics Form 1 by anony mous

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A water pipe of diameter 5.2cm is connected to another pipe of diameter 1.3cm. The speed of the water in the smaller pipe is 3ms-1. What is the speed of the water in the larger pipe?

asked Aug 5, 2021 in Physics Form 2 by anony mous

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The figure below shows the cross section of an aeroplane wing (aerofoil), with the aeroplane moving in the direction shown by the arrow.

asked Aug 5, 2021 in Physics Form 2 by anony mous

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State what is meant by streamline flow.

asked Aug 5, 2021 in Physics Form 2 by anony mous

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In an experiment, a spiral spring was hung vertically from a stand and various weights attached in turn to its lower end. The extension of the spring for the various weight was noted. The results were recorded as shown in the following table.

asked Aug 5, 2021 in Physics Form 1 by anony mous

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State Hooke’s law for a spiral spring

asked Aug 5, 2021 in Physics Form 2 by anony mous

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A bullet of mass 20g moving with a velocity of 30m/s penetrates a sand bag and is brought to rest in 0.05s. Find the average retarding force of the sand

asked Aug 5, 2021 in Physics Form 3 by anony mous

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A high jumper loads on saw dust. Explain how the saw dust helps in reducing the force of impact

asked Aug 5, 2021 in Physics Form 1 by anony mous

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Sketch a velocity time graph for a body that is uniformly accelerated

asked Aug 5, 2021 in Physics Form 3 by anony mous

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The figure show a syringe full of water. The area of the piston is 1.5cm3 while the area of the outlet is 1.55mm2 The piston is pushed such that it moves from point B in 2 seconds

asked Aug 5, 2021 in Physics Form 1 by anony mous

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A Bunsen burner in the laboratory can be tilted over a large angle and still get back to its original position once the tilting force is withdrawn. State two factors that are responsible for this observation

asked Aug 5, 2021 in Physics Form 2 by anony mous

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The Figure shows a suspended uniform meter rule in equilibrium when a mass of 50g is hang at the zero mark

asked Aug 5, 2021 in Physics Form 2 by anony mous

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