JAMB and WAEC Physics questions

829 questions with answers and explanations. Tap an option to check yourself.

All JAMB WAEC

Question 721· Sound waves· JAMB
A pipe open at both ends is 50 cm long. Find the frequency of its fundamental note if sound travels at 340 m/s (ignore end corrections).
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Answer: B. 340 Hz
Explanation and discussion
Question 722· Sound waves· WAEC
A girl claps in front of a wall and hears the echo 1.2 s later. If sound travels at 340 m/s, how far is the wall?
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Answer: D. 204 m
Explanation and discussion
Question 723· Sound waves· JAMB
A boy claps his hands in front of a wall and hears the echo 1.5 s later. If the speed of sound is 330 m/s, how far is he from the wall?
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Answer: B. 247.5 m
Explanation and discussion
Question 724· Sound waves· WAEC
The pitch of a note depends on its
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Answer: B. frequency
Explanation and discussion
Question 725· Temperature and its measurement· JAMB
The constriction in a clinical thermometer
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Answer: A. stops the mercury from running back quickly into the bulb
Explanation and discussion
Question 726· Temperature and its measurement· JAMB
A platinum resistance thermometer uses the change in
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Answer: B. electrical resistance with temperature
Explanation and discussion
Question 727· Temperature and its measurement· WAEC
A thermocouple thermometer is suitable for measuring
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Answer: D. very high and rapidly changing temperatures
Explanation and discussion
Question 728· Temperature and its measurement· WAEC
Mercury is used in thermometers because it
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Answer: B. expands uniformly and does not wet glass
Explanation and discussion
Question 729· Temperature and its measurement· WAEC
Express 27 °C on the kelvin scale.
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Answer: B. 300 K
Explanation and discussion
Question 730· Temperature and its measurement· JAMB
Convert 77 °F to the Celsius scale.
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Answer: B. 25 °C
Explanation and discussion
Question 731· Temperature and its measurement· JAMB
A thermometer reads 20 mm at the ice point and 220 mm at the steam point. What temperature does a reading of 120 mm indicate?
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Answer: D. 50 °C
Explanation and discussion
Question 732· Temperature and its measurement· JAMB
A faulty thermometer reads 10 °C in melting ice and 90 °C in steam. What is the true temperature when it reads 30 °C?
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Answer: A. 25 °C
Explanation and discussion
Question 733· Temperature and its measurement· JAMB
Six's maximum and minimum thermometer contains
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Answer: A. alcohol and mercury
Explanation and discussion
Question 734· Temperature and its measurement· JAMB
Which thermometer is suitable for measuring temperatures as low as −60 °C?
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Answer: C. an alcohol thermometer
Explanation and discussion
Question 735· Temperature and its measurement· WAEC
Convert 300 K to degrees Celsius.
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Answer: C. 27 °C
Explanation and discussion
Question 736· Temperature and its measurement· JAMB
A thermocouple thermometer works because
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Answer: A. an e.m.f. is produced when the junctions of two different metals are at different temperatures
Explanation and discussion
Question 737· Temperature and its measurement· WAEC
Mercury is used in thermometers mainly because it
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Answer: B. expands evenly and does not wet glass
Explanation and discussion
Question 738· Temperature and its measurement· JAMB
The fixed points of the Celsius scale are
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Answer: A. the melting point of pure ice and the boiling point of pure water at standard pressure
Explanation and discussion
Question 739· Temperature and its measurement· WAEC
Six's maximum and minimum thermometer records
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Answer: D. the highest and lowest temperatures over a period
Explanation and discussion
Question 740· Temperature and its measurement· JAMB
Mercury is preferred to water as a thermometric liquid mainly because it
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Answer: D. expands uniformly and does not wet glass
Explanation and discussion

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JAMB and WAEC Physics questions

A pipe open at both ends is 50 cm long. Find the frequency of its fundamental note if sound travels at 340 m/s (ignore end corrections).

A girl claps in front of a wall and hears the echo 1.2 s later. If sound travels at 340 m/s, how far is the wall?

A boy claps his hands in front of a wall and hears the echo 1.5 s later. If the speed of sound is 330 m/s, how far is he from the wall?

The pitch of a note depends on its

The constriction in a clinical thermometer

A platinum resistance thermometer uses the change in

A thermocouple thermometer is suitable for measuring

Mercury is used in thermometers because it

Express 27 °C on the kelvin scale.

Convert 77 °F to the Celsius scale.

A thermometer reads 20 mm at the ice point and 220 mm at the steam point. What temperature does a reading of 120 mm indicate?

A faulty thermometer reads 10 °C in melting ice and 90 °C in steam. What is the true temperature when it reads 30 °C?

Six's maximum and minimum thermometer contains

Which thermometer is suitable for measuring temperatures as low as −60 °C?

Convert 300 K to degrees Celsius.

A thermocouple thermometer works because

Mercury is used in thermometers mainly because it

The fixed points of the Celsius scale are

Six's maximum and minimum thermometer records

Mercury is preferred to water as a thermometric liquid mainly because it