Weight of 10 kg mass on Moon (g_moon ≈ g_earth/6) is: MCQ with Answer and Explanation

Weight of 10 kg mass on Moon (g_moon ≈ g_earth/6) is:
A. 60 N
B. 16.7 N
C. 10 N
D. 100 N
Answer: Option B
Solution (By JKSSB Mock Tests)
Weight W = mg. On Earth: 10×10 = 100 N. On Moon: g_moon ≈ 10/6 ≈ 1.67 m/s². W_moon = 10×1.67 ≈ 16.7 N. Mass remains 10 kg; weight changes with gravity. Memory tip: 'Mass constant; weight ∝ g'. Tests mass-weight distinction and gravity variation, common conceptual question in competitive exams.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Physics Questions

Question #1
The nucleus of an atom contains
A. Electrons and neutrons
B. Electrons and protons
C. Only neutrons
D. Protons and neutrons

Correct Answer: Option D


Explanation:
Protons (positive), neutrons (neutral). Electrons orbit outside. Hydrogen nucleus only proton. Heavy elements have more neutrons.

This question belongs to: Science Physics
Question #2
A lactometer is used to check
A. Humidity
B. Purity of milk
C. Purity of water
D. Blood pressure

Correct Answer: Option B


Explanation:
Measures specific gravity of milk, indicates adulteration.

This question belongs to: Science Physics
Question #3
Pressure at depth h in fluid: P = P₀ + ρgh. If depth doubles, pressure increase is:
A. Double
B. Four times
C. Half
D. Same

Correct Answer: Option A


Explanation:
Gauge pressure (excluding atmospheric) P_gauge = ρgh ∝ h. Doubling depth doubles gauge pressure. Total pressure P = P₀ + ρgh increases but not exactly double due to P₀ term. Question asks about pressure increase (ρgh part). Memory tip: 'Hydrostatic pressure ∝ depth'. Fundamental fluid statics concept frequently tested in competitive exams.

This question belongs to: Science Physics