GCE Physics 2020
Past Questions
16+ verified 2020 GCE Physics practice questions with Worked answers.
Start practicing 2020 questions →2020 GCE Physics questions
The dimension of pressure is
A ball of mass 0.5 kg moving at 6 m/s collides with a stationary ball of mass 1.5 kg. If they stick together after collision, what is their common velocity?
A body of mass 4 kg moving with a velocity of 6 m/s collides with a stationary body of mass 2 kg and they move together after the collision. What is the kinetic energy lost during the collision?
A pump raises 500 kg of water through a vertical height of 12 m every minute. Taking g = 10 m/s², what is the minimum power of the pump?
A car of mass 1000 kg accelerates uniformly from rest to a speed of 20 m/s. If the engine exerts a constant net force of 2000 N, what is the distance covered during this acceleration?
During a change of state from liquid to gas at constant temperature, the heat energy supplied to the substance is used mainly to
Which of the following correctly explains why a clinical thermometer has a constriction near its bulb?
Which of the following correctly describes the nature of the image formed by a plane mirror?
Which of the following best explains why a soft iron core is used in a transformer instead of a steel core?
A Zener diode with a breakdown voltage of 6 V is connected in a voltage regulator circuit. If the supply voltage is 10 V and the series resistor is 200 Ω, what is the current through the series resist…
A radioactive source has an initial activity of 6400 disintegrations per second. If the half-life is 5 years, what will be the activity after 20 years?
(a) Define the following terms as used in measurement: (i) Fundamental quantity (ii) Derived quantity Give ONE example of each. [4 marks] (b) State the SI unit and dimension of each of th…
(a) Define the following terms as used in thermodynamics: (i) Internal energy of a gas (ii) Isothermal process (iii) Adiabatic process [6 marks] (b) A fixed mass of an ideal gas occupies a volume of …
a) State the laws of refraction of light. (3 marks) b) A ray of light travels from air into a glass block of refractive index 1.52. If the angle of incidence is 40°, calculate: i) the angle of refr…
a) i) Define the term 'total internal reflection'. (2 marks) ii) State TWO conditions necessary for total internal reflection to occur. (2 marks) iii) Give TWO practical applications of total in…
a) State Hooke's Law and write its mathematical expression, defining all symbols used. (3 marks) b) A spring of natural length 20 cm is suspended vertically from a fixed support. When a mass of 200 g…