Question Library

Browse, filter, and study verified past examination questions with step-by-step mathematical reasoning.

Launch Interactive Practice
Searching 18,000+ Questions... Sifting topics, KaTeX formulas & verified solutions
Showing 706–720 of 1316 verified questions
Sort by:
Physics NECO SSCE 2003 Heat Energy & Temperature
A narrow, uniform glass tube, closed at one end, constains air which is sealed by a thread of mercury. The tube is placed first horizontally and then vertically with the open end at the top. Which of the following statements is correct?
A
The length of the entrapped air in the horizontal position is less than that in the vertical position
B
The length of the entrapped air in the vertical position is less than that in the horizontal position
C
The length of the mercury column becomes shorter in the horizontal position than in the vertical position
D
The length of the mercury column becomes shorter in the vertical position than in the horizontal position
E
The pressure of the entrapped air is atmospheric in both cases.
medium Difficulty
Physics NECO SSCE 2003 Mechanics and Properties of Matter
Which of the following motions will be produced by a pair of equal, opposite and non-collinear parallel forces acting on a body?
A
Oscillatory
B
Random
C
Rotational
D
Translational
E
Vibratory
medium Difficulty
Physics NECO SSCE 2003 Heat Energy & Temperature
The inability of the eye to focus near objects is known as
A
astigmatism
B
eye ring
C
hypermatropia
D
myopia
E
presbyopia
medium Difficulty
Physics NECO SSCE 2003 Thermal Physics
A platinum-resistance thermometer has a resistance of 4Ω at 0°C and 12Ω at 100°C. Assuming that the resistance changes uniformly with temperature. Calculate the resistance of the thermometer when the temperature is 45°C.
A
6.0Ω
B
6.42Ω
C
7.6Ω
D
8.4Ω
E
16.0Ω
medium Difficulty
Physics NECO SSCE 2003 Heat Energy & Temperature
A short chain is usually attached to the rear side of petro tanker trailing behind it to ensure that the
A
charges generated by friction in the tanker are conducted to the earth
B
chain vibrates in resonance with the tanker’s engine
C
heat generated by friction in the engine is conducted to the earth
D
petrol tanker is balanced on the road
E
tanker does not exceed a certain speed limit
medium Difficulty
Physics NECO SSCE 2003 Electricity and Magnetism
A transformer is required to give 120V from a 240V mains supply. If the primary has 5500 turns, how many turns has the secondary?
A
232
B
450
C
550
D
2750
E
11000
medium Difficulty
Physics NECO SSCE 2003 Waves and Optics
The distance between two successive crests of a water wave is 0.5m. If a particle on the surface of the water wave makes two complete vertical oscillations in 1s, calculate the speed of the wave.
A
0.25ms-1
B
0.50ms-1
C
1.00ms-1
D
2.00ms-1
E
4.00ms-1
medium Difficulty
Physics NECO SSCE 2003 Modern Physics and Nuclear Physics
In 90 seconds, the mass of a radioactive element reduces to \(\frac{1}{16}\) of its original value. Determine the half- life of the element.
A
15.0s
B
18.0s
C
22.5s
D
30.0s
E
45.0s
medium Difficulty
Physics NECO SSCE 2003 Heat Energy & Temperature
Which of the following statements about the concept of solid friction is NOT true?
A
It always acts in the direction of motion
B
It causes wear and tear in car tyres
C
It depends on the nature of the surfaces in contact
D
It is independent of the area of the surfaces in contact.
E
It reduces the efficiency of the machine
medium Difficulty
Physics NECO SSCE 2003 Mechanics and Properties of Matter
The space surrounding a magnet in which the magnetic force is exerted is
A
magnetic field
B
magnetic flux
C
magnetic point
D
magnetic pole
E
magnetic strength
medium Difficulty
Physics NECO SSCE 2003 Waves and Optics
Which of the following scientists postulated that moving particles exhibit wave properties?
A
Ernest Rutherford
B
Erwin Schroedinger
C
Frank Hertz
D
Louis de Broglie
E
Werner Heisenberg.
medium Difficulty
Physics NECO SSCE 2003 Mechanics and Properties of Matter
The area under the curve of a velocity time graph represents
A
acceleration
B
distance covered
C
instantaneous speed
D
time taken
E
work done
medium Difficulty
Physics NECO SSCE 2003 Mechanics and Properties of Matter
A body is launched from the earth’s surface, of radius R, so that it just escapes from the gravitational influence of the earth; If the gravitational constant is G and the mass of the earth is M, what is the escape velocity of the boby.
A
\(\sqrt{2GM}\) ÷ R
B
\(\frac{\sqrt{2GM}}{R}\)
C
\(\frac{\sqrt{2G}}{MR}\)
D
\(\sqrt{2GMR}\)
E
\(\frac{\sqrt{R}}{2GM}\)
medium Difficulty
Physics NECO SSCE 2003 Mechanics and Properties of Matter
A ball of mass m moving at velocity u collides with another ball of equal mass at rest. If the two balls move off together after the impact, calculate their common velocity.
A
\(\frac{u}{v}\)
B
\(\frac{u}{2}\)
C
u
D
2u
E
\(\frac{u}{m}\)
medium Difficulty
Physics NECO SSCE 2003 Mechanics and Properties of Matter
Which of the following statement(s) is/are correct? I. When a liquid expands its density falls II. When a mercury-in-glass thermometer is placed in a hot liquid, the mercury level first descends and then rises. III. The apparent expansion of a liquid is greater than its real expansion.
A
I only
B
II only
C
III only
D
I and II only
E
II and III only
medium Difficulty
Page 48 of 88