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Physics NECO SSCE 2005 Gas Laws & Heat Transfer
Mercury does NOT wet glass because
A
glass is an amorphous substance
B
the adhesive force is greater than the cohesive force
C
the cohesive force is greater than the adhesive force.
D
mercury has very high thermal conductivity
E
mercury is opaque.
medium Difficulty
Physics NECO SSCE 2005 Gas Laws & Heat Transfer
When some ice cubes are added to a glass of warm water, the glass is cooled by a process of
A
conduction only
B
convection only
C
conduction and convection
D
conduction and radiation
E
radiation only
medium Difficulty
Physics NECO SSCE 2005 Circular Motion, Gravitation & Simple Harmonic Motion
The length of a simple pendulum is increased by a factor of four. By what factor is its period Increased?
A
0.25
B
0.5
C
1.66
D
2
E
4
medium Difficulty
Physics NECO SSCE 2005 Current Electricity & Electric Circuits
Which of the following pairs is an example of translucent bodies?
A
Cardboard and moon
B
Clear water and glass
C
Frosted glass and waxed paper
D
Oiled paper and brick
E
Wood and metal sheet
medium Difficulty
Physics NECO SSCE 2005 Magnetism, Electromagnetism & AC Circuits
Calculate the peak voltage that could be obtained from a 220 V\(_{r.m.s}\)main supply.
A
70.7V
B
110.0V
C
155.6V
D
311.1V
E
440.0V
medium Difficulty
Physics NECO SSCE 2005 Elasticity, Density, Pressure & Fluids
The mercury column in a simple mercury barometer is of height 5m above the mercury in a reservoir. If the tube is replaced with one whose radius is twice that of the first tube, what will be the height of the mercury column in the new tube?
A
2.5m
B
5.0m
C
7.5m
D
10.0m
E
20.0m
medium Difficulty
Physics NECO SSCE 2005 Circular Motion, Gravitation & Simple Harmonic Motion
The escape velocity of an object from the gravitational field of a planet I. Increases with the mass of the object II. Increases with the mass of the planet III. Is smaller on the moon than on the earth. Which of the above statements is/are correct?
A
I only
B
II only
C
I and II only
D
II and III only
E
I, II and III
medium Difficulty
Physics NECO SSCE 2005 Current Electricity & Electric Circuits
Which of the following is a non-renewable energy source?
A
Coal
B
Hydro
C
Ocean waves
D
Solar
E
Tides
medium Difficulty
Physics NECO SSCE 2005 Current Electricity & Electric Circuits
Which of the following is NOT a component of an a.c. generator?
A
Armature
B
Carbon brushes
C
Magnet
D
Slip ring
E
Split rings
medium Difficulty
Physics NECO SSCE 2005 Current Electricity & Electric Circuits
An object of mass 5.0 cg moving with a velocity of 12ms-1 due north hits a stationary body of mass 7.0kg. If they stick together after collision and move with velocity V due north, calculate the magnitude of V.
A
12ms-1
B
7ms-1
C
6ms-1
D
5ms-1
E
4ms-1
medium Difficulty
Physics NECO SSCE 2005 Work, Energy, Power & Simple Machines
Which of the following statements is/are correct in any machine? I. The velocity ratio is usually greater than the mechanical advantage. II. Efficiency work inputwork outputIII. The velocity ratio is independent of friction.
A
I only
B
III only
C
I and II only
D
I and III only
E
II and III only
medium Difficulty
Physics NECO SSCE 2005 Waves, Sound & Vibrations
Which of the following is a percussion Instrument?
A
Flute
B
Guitar
C
Piano
D
Trumpet
E
Xylophone
medium Difficulty
Physics NECO SSCE 2005 Atomic, Quantum, Nuclear Physics & Electronics
Which of the following is used for shielding radioactive fallout?
A
Aluminum
B
Lead
C
Iron
D
Plastic
E
Wood
medium Difficulty
Physics NECO SSCE 2005 Atomic, Quantum, Nuclear Physics & Electronics
The charge of an alpha particle can be neutralized by
A
1 beta particle
B
2 photons of gamma rays
C
2 beta particles
D
4 beta particles
E
4 photons of gamma rays
medium Difficulty
Physics NECO SSCE 2005 Atomic, Quantum, Nuclear Physics & Electronics
Which of the following statements is correct?
A
Alpha particles have a large mass and high penetrating power
B
Alpha particles have a small mass and a low penetrating power
C
Beta partials have no mass and a high penetrating power
D
Beta particles have a large mass and a low penetrating power
E
Gamma rays have no mass and a high penetrating power
medium Difficulty
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