Introduction
Physics is one of the most challenging subjects in the General Certificate Examination (GCE). Many students struggle with topics such as thermometry, motion, and energy calculations. However, practicing solved questions is the best way to build confidence and accuracy.
This guide presents likely GCE Physics questions, worked examples, and additional practice questions with solutions.
Worked Example – Thermometer Calibration
A mercury-in-glass thermometer has its lower fixed point at X mm and the upper fixed point at 180 mm. On a particular day, the mercury level rises to 60 mm. If this corresponds to 20°C on the Celsius scale, what is the value of X?
Answer: The lower fixed point X is 30 mm.
Question 1 – Units
Which of the following is the SI unit of pressure?
A. Joule
B. Watt
C. Pascal
D. Newton
C. Pascal
Pressure = Force ÷ Area, unit = N/m² = Pascal (Pa).
Question 2 – Motion
A body accelerates uniformly from rest at 4 m/s24 \, \text{m/s}^24m/s2 for 5 seconds. What is its final velocity?
A. 10 m/s
B. 15 m/s
C. 20 m/s
D. 25 m/s
C. 20 m/s
Question 3 – Heat
The specific heat capacity of a substance is defined as:
A. Heat required to change its state
B. Heat required to raise the temperature of 1 kg by 1 K
C. Heat required to vaporize it
D. Heat absorbed during fusion
B. Heat required to raise the temperature of 1 kg by 1 K
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Question 4 – Waves
The time for one complete oscillation is called:
A. Amplitude
B. Frequency
C. Period
D. Wavelength
C. Period
Question 5 – Electricity
A current of 2 A flows through a 6 Ω resistor. What is the potential difference across it?
A. 8 V
B. 10 V
C. 12 V
D. 14 V
C. 12 V
Question 6 – Energy
Work is said to be done when:
A. A force is applied without displacement
B. A body remains at rest under a force
C. A force moves a body through a distance
D. Energy is stored in a body
C. A force moves a body through a distance
Work = Force × Distance moved in the direction of the force.
Question 7 – Optics
The image formed by a plane mirror is always:
A. Real and inverted
B. Virtual and upright
C. Smaller than the object
D. Magnified
B. Virtual and upright
Plane mirrors always produce virtual, upright, and same-size images.
Question 8 – Magnetism
The north pole of a magnet is brought near the south pole of another magnet. What happens?
A. They repel
B. They attract
C. Nothing happens
D. Both lose magnetism
B. They attract
Unlike poles attract; like poles repel.
Question 9 – Sound
Sound cannot travel through:
A. Solids
B. Liquids
C. Gases
D. Vacuum
D. Vacuum
Sound requires a medium; it cannot travel through a vacuum.
Question 10 – Nuclear Physics
The process by which an unstable nucleus loses particles to become stable is known as:
A. Ionization
B. Radioactivity
C. Fusion
D. Fission
B. Radioactivity
Radioactivity is the spontaneous disintegration of unstable nuclei.
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Conclusion
Physics questions in GCE often test principles like thermometry, motion, waves, and electricity. However, steady practice with worked examples will improve both speed and accuracy.
In summary, mastering key formulas and regularly solving past questions are the best strategies for excelling in GCE Physics.
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