Quiz for Core Subject Knowledge

Q1: What is the unit of electrical resistance?

A. Ohm B. Volt C. Ampere D. Watt

Q2: What is the primary function of a transformer?

A. To increase voltage B. To decrease voltage C. Both A and B D. To store energy

Q3: What is Hooke’s law related to?

A. Magnetism B. Elasticity C. Thermodynamics D. Fluid mechanics

Q4: Which gas is commonly used in incandescent light bulbs?

A. Oxygen B. Nitrogen C. Argon D. Carbon dioxide

Q5: What is the pressure exerted by a fluid at rest called?

A. Differential pressure B. Atmospheric pressure C. Hydrostatic pressure D. Dynamic pressure

Q6: Which of the following materials is a good conductor of electricity?

A. Glass B. Copper C. Rubber D. Wood

Q7: What does Ohm’s law state?

A. Voltage = Current × Resistance B. Power = Voltage × Current C. Resistance = Voltage / Power D. Current = Voltage × Resistance

Q8: Which unit is used to measure magnetic field strength?

A. Tesla B. Joule C. Watt D. Newton

Q9: What is the relation between frequency and time period?

A. Frequency = 1 / Time period B. Frequency = Time period C. Frequency = Time period^2 D. Frequency = 2 × Time period

Q10: What is the function of a capacitor in an electrical circuit?

A. Store electrical energy B. Convert AC to DC C. Increase current D. Reduce voltage

Q11: Which law explains the principle of conservation of energy?

A. Newton’s first law B. First law of thermodynamics C. Boyle’s law D. Faraday’s law

Q12: What type of current is supplied by batteries?

A. AC B. DC C. Both AC and DC D. None of the above

Q13: Which gas is most abundant in Earth’s atmosphere?

A. Oxygen B. Nitrogen C. Carbon dioxide D. Argon

Q14: What does the term "thermal conductivity" describe?

A. Ability to conduct electricity B. Ability to conduct heat C. Resistance to flow of current D. Capacity to store heat

Q15: What is the standard atmospheric pressure?

A. 1 atm = 101.3 kPa B. 1 atm = 100 kPa C. 1 atm = 90 kPa D. 1 atm = 120 kPa

Q16: Which device converts mechanical energy into electrical energy?

A. Generator B. Transformer C. Motor D. Capacitor

Q17: The term "viscosity" refers to the:

A. Resistance to flow of a fluid B. Density of a fluid C. Pressure exerted by a fluid D. Temperature of a fluid

Q18: What is the unit of electric power?

A. Watt B. Volt C. Ampere D. Ohm

Q19: What is the principle behind a hydraulic lift?

A. Pascal’s law B. Bernoulli’s theorem C. Archimedes’ principle D. Newton’s law