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Physics Past Questions and Answers

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Physics Questions

Question 4316:

An atom that emits an a-particle?

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A May become a different element.
B Becomes a different isotope of the element.
C Daughter with increased mass.
D Becomes a daughter of a different element always.

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Question 4317:

Which of the following units is equivalent to the unit of electric current?

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A C s\({-1}\)
B W
C J s\({-1}\)
D C

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Question 4318:

A ball is swung in a horizontal circle of centre O with a constant speed. acceleration?

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A Away from O
B Along the Circumference of the circle
C Toward centre O
D Along a tangent to the circle

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Question 4319:

Which of the following statements is an effect of compressing gas molecules at constant temperature?

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A The pressure on the molecules decreases.
B The molecules gain more kinetic energy.
C The molecules make more impact per second on the walls of the container.
D The molecules increase in size.

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Question 4320:

The diagram above is an illustration of an a.c. circuit.Calculate the reactance of the capacitor.

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A 2016Ω
B 2000Ω
C 200Ω
D 4000Ω

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