A few Physics questions from the bank. The full set is searchable free.
#1
JAMB2025
5400kJ of heat energy was lost when some amount of steam condensed to water for drinking purposes at 15º C. What is the quantity of water collected? [L \(_f\) = 2.26 × 10 \(^6\) Jkg \(^{-1}\) , c \(_w\) = 4200 Jkg \(^{-1}K^{-1}\) ]
A0.95 kg
B8.24 kg
C1.84 kg
D2.06 kg
#2
JAMB2021
The equation of a wave traveling along the positive x-direction is given by; y = 0.25 x 10 \(^{-3}\) sin (500t - 0.025x). Determine the angular velocity of the wave motion.
A0.25 x 10 \(^{-3}\) rads \(^{-1}\)
B0.25 x 10 \(^{-1}\) rads \(^{-1}\)
C5.00 x 10 \(^{2}\) rads \(^{-1}\)
D2.50 x 10 \(^{3}\) rads \(^{-1}\)
#3
WAEC2016
Which of the following factors does not affect the e.m.f of a primary cell? Its
Asize
Binternal resistance
Coperating temperature
Dduration of usage
#4
WAEC2010
Which of the following instruments is best for measuring the diameter of a thin constantan wire?
Acallipers
Bmetre rule
Cmicometer screw guage
Dvernier callipers
#5
WAEC2005
Which of the following type of motion does a body undergo when acted upon by a couple?V
Avibrational
Btranslational
Crotational
Drandom
#6
JAMB2000
A catapult used to hold a stone of mass 500g is extended by 20cm with an applied force F. If the stone leaves with a velocity of 40m/s, the value of F is
A\(4.0 x 10 ^{2} N\)
B\(2.0 x 10 ^{3} N\)
C\(4.0 x 10 ^{3} N\)
D\(4.0 x 10 ^{4} N\)
#7
WAEC1995
Which of the following is a wind instrument?
AGuitar
BOrgan
CViolin
DPiano
EHarp
#8
WAEC1989
Water in an open container boils at a lower temperature when heated at the top of a mountain than at sea-level because at the top of a mountain the