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Physics NECO SSCE 2004 Current Electricity & Electric Circuits
The component of a vector in a given direction is
A
equal to the magnitude of the resultant vector in that direction
B
equal to the magnitude of the resultant vector in the opposite direction
C
its effective magnitude
D
its effective value in that direction
E
its effective value in the opposite direction
medium Difficulty
Physics NECO SSCE 2004 Work, Energy, Power & Simple Machines
A plane which is Inclined at an angle of 30 ° to the horizontal has a velocity ratio of
A
2
B
1
C
0.87
D
0.67
E
0.5
medium Difficulty
Physics NECO SSCE 2004 Current Electricity & Electric Circuits
A mass of 5kg is suspended from the ceiling of a lift with a light inextensible string. As the lift moves upwards with an acceleration of 2ms-2, the tension in the string is [g = 10ms-2]
A
25N
B
40N
C
50N
D
60N
E
70N
medium Difficulty
Physics NECO SSCE 2004 Waves, Sound & Vibrations
Which of the following is NOT an example of a percussion instrument?
A
Bell
B
Drum
C
Flute
D
Gong
E
Xylophone
medium Difficulty
Physics NECO SSCE 2004 Circular Motion, Gravitation & Simple Harmonic Motion
The time t1, t2 and t3 for 20 complete oscillations of a simple pendulum experiment are 32.0s, 34.6s and 35.5s respectively. Calculate the mean period of the pendulum.
A
1.60s
B
1.70s
C
1.73s
D
1.78s
E
5.11s
medium Difficulty
Physics NECO SSCE 2004 Current Electricity & Electric Circuits
The temperature at which the water vapour present in the air is just enough to saturate the air is the _______ point.
A
boiling
B
critical
C
dew
D
ice
E
steam
medium Difficulty
Physics NECO SSCE 2004 Atomic, Quantum, Nuclear Physics & Electronics
Which of the following statements is true of nuclear fission?
A
Heavy nuclei combine to form new element
B
Protons are used in bombarding heavy nucleus
C
The sum of the masses of the products is greater than the mass of the original substance
D
Two light nuclei are made to combine to form a heavy nucleus
E
Very large amount of energy is released.
medium Difficulty
Physics NECO SSCE 2004 Circular Motion, Gravitation & Simple Harmonic Motion
The frequency of a body executing simple harmonic motion when left undisturbed is known as__________ frequency.
A
damped
B
forced
C
free
D
natural
E
sinusoidal
medium Difficulty
Physics NECO SSCE 2004 Current Electricity & Electric Circuits
When very hot water is poured into a thin-walled glass container, it is less likely to break because
A
all parts of the container got heated-uniformly
B
glass can withstand a very high temperature
C
the molecules of glass are too far apart to cause breakages of the container
D
the outer part of the container is cooler than the inner part
E
thin glass does not expand fast
medium Difficulty
Physics NECO SSCE 2004 Atomic, Quantum, Nuclear Physics & Electronics
An electron makes a transition from - 1.60 eV energy level to - 10.4eV energy level Calculate the energy loss due to the transition.
A
16.64eV
B
12.00eV
C
10.40eV
D
8.80eV
E
6.50eV
medium Difficulty
Physics NECO SSCE 2004 Units, Measurements & Dimensional Analysis
Which to the following is NOT a fundamental unit?
A
Ampere
B
Kelvin
C
Kilogramme
D
Newton
E
Second
medium Difficulty
Physics NECO SSCE 2004 Linear Motion, Projectiles & Kinematics
A projectile fired with initial velocity, u will attain its maximum height H when the angle of projection \theta is
A
30°
B
45°
C
60°
D
75°
E
90°
medium Difficulty
Physics NECO SSCE 2004 Reflection, Refraction & Dispersion of Light
For total internal reflection to occur, I. light must be travelling from an optically more dense to an optically less dense medium. II. the angle of incidence in the denser medium must be greater than its critical angle. III. the angle of refraction in the less dense medium must be equal to 90 °. Which of the statements above is/are correct?
A
I only
B
II only
C
III only
D
I and II only
E
II and III only.
medium Difficulty
Physics NECO SSCE 2004 Elasticity, Density, Pressure & Fluids
Which property of a fluid determines its suitability as a lubricant?
A
Capillarity
B
Diffusion
C
Solubility
D
Surface tension
E
Viscosity
medium Difficulty
Physics NECO SSCE 2004 Waves, Sound & Vibrations
A note, A from a guitar produces a wave of amplitude 4 mm and frequency 1000 Hz. Another note, B from a whistle produces a similar waveform of amplitude 2 mm and frequency 2200 Hz. If the two notes are compared,
A
A has a higher pitch than B
B
A is louder than B.
C
B has a greater speed than A
D
B is louder than A
E
A and B have the same quality
medium Difficulty
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