Everyday Science MCQs (page 2 of 51)
Physics, chemistry, biology, the human body, units and the solar system, covering the everyday science section of general-ability tests.
1,014 questions. Select an option to check your answer, or open "Show answer". Showing 21–40.
- 21.
What is the chemical formula of ethanol?
Show answer
Answer: B. C2H5OH
Ethanol is C2H5OH.
- 22.
What is the chemical formula of glucose?
Show answer
Answer: B. C6H12O6
Glucose is C6H12O6.
- 23.
What is the chemical formula of sucrose?
Show answer
Answer: A. C12H22O11
Sucrose (table sugar) is C12H22O11.
- 24.
What is the speed of light in vacuum?
Show answer
Answer: B. 3 × 10^8 m/s
Light travels at approximately 3 × 10^8 m/s in vacuum.
- 25.
What is the speed of sound in air at 20°C?
Show answer
Answer: B. 343 m/s
Sound travels at about 343 m/s in air at 20°C.
- 26.
What is the boiling point of water at sea level?
Show answer
Answer: B. 100°C
Water boils at 100°C at standard atmospheric pressure.
- 27.
What is the freezing point of water?
Show answer
Answer: B. 0°C
Water freezes at 0°C.
- 28.
What is the normal human body temperature?
Show answer
Answer: B. 37°C
Normal body temperature is about 37°C (98.6°F).
- 29.
What is the unit of force?
Show answer
Answer: D. Newton
Force is measured in Newtons (N).
- 30.
What is the unit of energy?
Show answer
Answer: C. Joule
Energy is measured in Joules (J).
- 31.
What is the unit of power?
Show answer
Answer: D. Watt
Power is measured in Watts (W).
- 32.
What is the unit of pressure?
Show answer
Answer: A. Pascal
Pressure is measured in Pascals (Pa).
- 33.
What is the unit of electric current?
Show answer
Answer: D. Ampere
Electric current is measured in Amperes (A).
- 34.
What is the unit of voltage?
Show answer
Answer: C. Volt
Voltage is measured in Volts (V).
- 35.
What is the unit of resistance?
Show answer
Answer: D. Ohm
Resistance is measured in Ohms (Ω).
- 36.
What is the unit of frequency?
Show answer
Answer: A. Hertz
Frequency is measured in Hertz (Hz).
- 37.
What is the unit of magnetic flux?
Show answer
Answer: B. Weber
Magnetic flux is measured in Webers (Wb).
- 38.
What is the unit of magnetic flux density?
Show answer
Answer: A. Tesla
Magnetic flux density is measured in Teslas (T).
- 39.
What is the unit of capacitance?
Show answer
Answer: D. Farad
Capacitance is measured in Farads (F).
- 40.
What is the unit of inductance?
Show answer
Answer: D. Henry
Inductance is measured in Henrys (H).