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Physics UTME / JAMB 2015 Scalars, Vectors & Relative Motion
Which one of the following is a vector quantity?
A
Temperature gradient
B
Mass
C
Work
D
Time
medium Difficulty
Physics UTME / JAMB 2015 Work, Energy, Power & Simple Machines
Efficiency of a transformer is equal to
A
Efficiency of transformer = (secondary coil ÷ primary coil) × 100%
B
Efficiency of transformer = (mechanical advantage ÷ velocity ratio) × 100%
C
Efficiency of a transformer = (Number of turns in the secondary coil ÷ Number of turns in the primary coil) × 100%
D
Efficiency of a transformer = (power developed in the secondary coil ÷ power supplied to the primary coil) × 100%
medium Difficulty
Physics UTME / JAMB 2015 Calorimetry, Latent Heat & Change of State
Volatile liquids usually
A
Have high boiling points
B
have low boiling points
C
have high densities
D
have high melting points
medium Difficulty
Physics UTME / JAMB 2015 Reflection, Refraction & Dispersion of Light
When a man moves toward a plane mirror at a speed of 6m/s, the distance the man and his image increased at a speed of?
A
2 m/s
B
4 m/s
C
12 m/s
D
14 m/s
medium Difficulty
Physics UTME / JAMB 2015 Current Electricity & Electric Circuits
Which of the following instrument is most accurately for comparing electromotive force (e.m.f) of two cells?
A
Voltmeter
B
Meter rule
C
Galvanometer
D
Potentiometer
medium Difficulty
Physics UTME / JAMB 2015 Newton's Laws, Momentum & Collisions
In an inelastic collision I. Energy is conserved II. Energy is decreased III. Energy is increased IV. Linear momentum conserved
A
I only
B
II and IV only
C
II only
D
III only
medium Difficulty
Physics UTME / JAMB 2015 Current Electricity & Electric Circuits
The normal temperature of human body is record at what ranges?
A
27°C to 43°C
B
30°C to 40°
C
98.4°C only
D
Between 35°C to 37°C
medium Difficulty
Physics UTME / JAMB 2015 Newton's Laws, Momentum & Collisions
The property of a body to remain at rest or to continue to move in a straight line is known as
A
force
B
Impulse
C
Energy
D
Inertia
medium Difficulty
Physics UTME / JAMB 2015 Newton's Laws, Momentum & Collisions
Momentum and Kinetic energy are conserved in
A
Inelastic collision
B
Elastic collision
C
Explosion
D
Spacecraft
medium Difficulty
Physics UTME / JAMB 2015 Magnetism, Electromagnetism & AC Circuits
An alternating current with a frequency of 100HZ has a period of
A
0.03sec
B
0.01sec
C
0.04sec
D
0.15sec
medium Difficulty
Physics UTME / JAMB 2015 Magnetism, Electromagnetism & AC Circuits
An alternating current with a frequency of 100HZ has a period of
A
0.03sec
B
0.01sec
C
0.04sec
D
0.15sec
medium Difficulty
Chemistry UTME / JAMB 2015 Nature of Matter & Separation Techniques
The filter in the cigarette reduce the nicotine construct by
A
burning
B
adsorption
C
evaporation
D
absorption
medium Difficulty
Chemistry UTME / JAMB 2015 Nature of Matter & Separation Techniques
Which of these require crystallization most?
A
Drug making
B
Cement making
C
Paint making
D
Perfume making
medium Difficulty
Chemistry UTME / JAMB 2015 Metals, Transition Elements & Extraction
Iron is often galvanized in order to
A
Make it more malleable
B
Remove the impurities unit
C
Protect it against corrosion
D
Render it passive
medium Difficulty
Chemistry UTME / JAMB 2015 Non-Metals & Their Compounds
In the industrial production of H2 from water gas the CO2 produced along with the H2 is removed by
A
washing under pressure
B
drying over phosphorus (V) oxide
C
passing the mixture to the limewater
D
using ammonical copper (I) chlorine
medium Difficulty
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