Everyday Science MCQs
Everyday Science MCQs cover physics, chemistry, biology, inventions, environment, and human body basics. Ideal for CSS, PMS, PPSC, FPSC, and NTS exams, they boost scientific awareness and accuracy in general knowledge sections.
Q: nergy stored in food is mainly in the form of
A) Chemical
B) Electrical
C) Mechanical
D) Heat
✅ Correct Answer: A
Explanation: Chemical energy in food is released during digestion.
Q: The unit of frequency is called
A) Newton
B) Hertz
C) Joule
D) Watt
✅ Correct Answer: B
Explanation: Hertz measures the number of cycles per second.
Q: Electric current flows in a circuit due to
A) Magnetic force
B) Chemical reaction
C) Gravity
D) Potential difference
✅ Correct Answer: D
Explanation: Potential difference causes the flow of electrons.
Q: Photosynthesis primarily takes place in which plant cell organelle?
A) Ribosome
B) Nucleus
C) Mitochondria
D) Chloroplast
✅ Correct Answer: D
Explanation: Chloroplasts contain chlorophyll needed for photosynthesis.
Q: The speed of light is approximately
A) 50,000 km/s
B) 150,000 km/s
C) 100,000 km/s
D) 300,000 km/s
✅ Correct Answer: D
Explanation: Light travels at nearly 300,000 kilometers per second.