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NECTA Physics – Tanzania

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Question 121

What is the standard SI unit of force?
MechanicsMechanicseasy

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Question 122

A ray of light passes from air into water. What happens to the speed of light and the wavelength?
WavesWavesmedium

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Question 123

What is the main advantage of using a transformer in an electric power transmission system?
ElectricityElectricitymedium

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Question 124

Which form of heat transfer occurs primarily in solids?
HeatHeateasy

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Question 125

A body of mass 2 kg is moving with a velocity of 3 m/s. What is its kinetic energy?
EnergyEnergymedium

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Question 126

In magnetism, what is the region around a magnet where magnetic forces can be detected called?
MagnetismMagnetismeasy

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Question 127

Which phenomenon provides evidence for the particle nature of light?
Modern physicsModern physicshard

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Question 128

If a wave has a frequency of 500 Hz and a wavelength of 0.4 m, what is its speed?
WavesWavesmedium

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Question 129

Which instrument is used to measure the frequency of a wave?
WavesWaveseasy

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Question 130

What is the main reason for the increase in resistance of a conductor when its temperature increases?
ElectricityElectricitymedium

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