PHYSICS EXAMINATIONS QUESTIONS SENIOR SECONDARY SCHOOL STUDENTS|SS1 PROMOTION EXAMINATION 2020/2021 ACADEMIC SESSION —PROMOTION EXAMINATION 2020/2021 ACADEMIC SESSION
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1. A field that has both magnitude and direction is called (a) scalar (b) vector (c) work (d) uniform
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2.The following are types of magnet except (a) natural magnet (b) artificial magnet (c) man-made magnet (d) sound magnet
3. The region of space round a magnet in which the influence of the magnet felt or detected is called ______
4. Lines of force do not cross each others. True or False
5. The lines of force indicate the direction of the electric field. True or False
6.________ is the instrument used in detecting a very small current in an electric circuit.
7. One of the following is the component of electric circuit (a) fuse (b) work (c) field (d) time
8. The formular W = QV, what is the SI unit of W.
9. The SI unit of Q is _____ (a) second (b) ampere (c) coulombs (d) Watt
10. The following are production of electric current except (a) chemical energy (b) solar energy (c) heat energy (d) close energy
11. The electric conductor which forms resistance to free flow of current is called ____ (a) resistor (b) ammeter (c) voltage (d) resistance
12. The energy that is transferred from a hot object to a cooler object as a result of their difference in temperature is called (a) Expansion (b) heat Energy (c) Molecule (d) Temperature
13. Which of the following is not an effect of heat? (a) Change in temperature (b) Chemical change (c) Change in pressure (d) Fusion change
14. The ability or capacity to do work is called (a) Energy (b) Temperature (c) Atom (d) Pressure
15. Which of the following is not mode of heat transfer (a) Radiation (b) Conduction (c) Liquid (d) Convection
16. The instrument used in measuring temperature is called (a) Barometer (b) manometer (c) Hydrometer (d) Thermometer
17. The process whereby solid changes to gas is (a) Sublimation (b) Evaporation (c) Vapour (d) Energy
18. Find the equivalent resistance when three resistors of an electric circuit 1Ω, 4Ω and 5Ω are connected in series (a) 10Ω (b) 20Ω (c) 25Ω (d) 15Ω
19. The instrument used in measuring voltage is called (a) Voltmeter (b) Ammeter (c) Thermometer (d) Hydrometer
20. The best metallic conductor is (a) Silver (b) Potassium (c) Helium (d) Oxygen
Theory (Answer only four (4) questions)
1. Define the following terms:
(a) Field (b) Magnetism (c) Atom (d) Circuit (e) Current
2. Distinguish between the following terms:
(a) Current Electricity and Static Electricity
(b) Close Circuit and Open Circuit
(c) Variable Field and Uniform Field
(d) Conductor and Insulator
(e) Series and Parallel Connection of Resistors
3. The formulae V = IR and I = Q/T have its usual meaning,
(a) Write down the full meaning of each symbol.
(b) State instrument used in measuring each symbol.
(c) State the SI unit of each symbol.
4. If three resistors 2Ω, 4Ω and 6Ω are connected in series and thereafter in parallel in the circuit. Calculate the equivalent resistor of the combination.
5a. State Ohm’s Law
(b) Write down the full meaning of Pd and Emf and give their similarities.
(c) State four component of electric circuit
6a. What is Resistance?
(b) State four factors affecting electrical resistance of a wire
(c) State three properties of electric lines of force
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