NECTA Physics – Tanzania

Question 1

Which instrument is most suitable for measuring the length of a small object to an accuracy of 0.01 cm?

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Question 2

What form of energy is stored in a stretched spring?

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Question 3

Which process occurs when heat is transferred through direct contact of particles?

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Question 4

If the frequency of a wave doubles while the speed remains constant, what happens to its wavelength?

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Question 5

What is the unit of electric current?

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Question 6

A wire carrying current is placed near a magnet. What kind of force interaction occurs?

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Question 7

Which statement correctly describes the photoelectric effect?

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Question 8

What is the work done by a force of 10 N acting over a displacement of 3 m in the direction of the force?

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Question 9

Which of these is a scalar quantity?

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Question 10

Which instrument is most suitable for measuring the length of a pencil accurately to the nearest millimeter?

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