JAMB Physics questions

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

All JAMB WAEC

Question 381· Simple machines· JAMB
A lever has an effort arm of 60 cm and a load arm of 20 cm. Find its velocity ratio.
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Answer: B. 3
Explanation and discussion
Question 382· Sound waves· JAMB
The loudness of a sound depends mainly on its
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Answer: B. amplitude
Explanation and discussion
Question 383· Sound waves· JAMB
An echo is heard 2 s after a sound is made in front of a cliff. If the speed of sound is 340 m/s, the cliff is:
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Answer: B. 340 m away
Explanation and discussion
Question 384· Sound waves· JAMB
A girl sees a lightning flash and hears the thunder 3 s later. If sound travels at 340 m/s, how far away is the storm?
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Answer: B. 1020 m
Explanation and discussion
Question 385· Sound waves· JAMB
A pipe closed at one end is 25 cm long. Find the frequency of its fundamental note if the speed of sound is 340 m/s (ignore end correction).
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Answer: C. 340 Hz
Explanation and discussion
Question 386· Sound waves· JAMB
The pitch of a musical note depends on its
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Answer: A. frequency
Explanation and discussion
Question 387· Sound waves· JAMB
Two tuning forks of frequencies 256 Hz and 260 Hz are sounded together. Find the beat frequency.
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Answer: D. 4 Hz
Explanation and discussion
Question 388· Sound waves· JAMB
Sound travels fastest through
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Answer: A. solids
Explanation and discussion
Question 389· Sound waves· JAMB
Notes of 256 Hz and 260 Hz are sounded together. Find the beat frequency.
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Answer: D. 4 Hz
Explanation and discussion
Question 390· Sound waves· JAMB
Find the fundamental frequency of a pipe closed at one end and 0.85 m long. [speed of sound = 340 m/s]
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Answer: A. 100 Hz
Explanation and discussion
Question 391· Sound waves· JAMB
The Doppler effect is the apparent change in frequency caused by
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Answer: C. relative motion of the source and the observer
Explanation and discussion
Question 392· Sound waves· JAMB
Ultrasound has frequencies
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Answer: C. above 20 000 Hz
Explanation and discussion
Question 393· 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 394· 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 395· 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 396· 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 397· Temperature and its measurement· JAMB
Convert 77 °F to the Celsius scale.
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Answer: B. 25 °C
Explanation and discussion
Question 398· 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 399· 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 400· Temperature and its measurement· JAMB
Six's maximum and minimum thermometer contains
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Answer: A. alcohol and mercury
Explanation and discussion

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JAMB Physics questions

A lever has an effort arm of 60 cm and a load arm of 20 cm. Find its velocity ratio.

The loudness of a sound depends mainly on its

An echo is heard 2 s after a sound is made in front of a cliff. If the speed of sound is 340 m/s, the cliff is:

A girl sees a lightning flash and hears the thunder 3 s later. If sound travels at 340 m/s, how far away is the storm?

A pipe closed at one end is 25 cm long. Find the frequency of its fundamental note if the speed of sound is 340 m/s (ignore end correction).

The pitch of a musical note depends on its

Two tuning forks of frequencies 256 Hz and 260 Hz are sounded together. Find the beat frequency.

Sound travels fastest through

Notes of 256 Hz and 260 Hz are sounded together. Find the beat frequency.

Find the fundamental frequency of a pipe closed at one end and 0.85 m long. [speed of sound = 340 m/s]

The Doppler effect is the apparent change in frequency caused by

Ultrasound has frequencies

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 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 constriction in a clinical thermometer

A platinum resistance thermometer uses the change in

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