🔬Compulsory Science & Tech • UNIT 1 3 Questions
Force & Gravitation
Newton's Universal Law of GravitationAcceleration due to Gravity (g)Free Fall & WeightlessnessGravity & Weight
Filter Marks:
Section 1 (Very Short) • 1 MarkCompulsory Science & Tech📂 Force & Gravitation› Acceleration due to Gravity (g)
NEB 2080 RegularEasy
Q1.
Define acceleration due to gravity (g) and write its standard SI value on the Earth's surface.
🇳🇵 गुरुत्वप्रवेग (g) को परिभाषा लेख्नुहोस् र पृथ्वीको सतहमा यसको मानक मान कति हुन्छ लेख्नुहोस्।
NEB Board Strategy: Always mention SI units (m/s²) with numerical values in 1 mark definitions.
Section 2 (Short Answer) • 2 MarksCompulsory Science & Tech📂 Force & Gravitation› Free Fall & Weightlessness
NEB 2080 RegularMedium
Q2.
Why does a parachute descend slowly while a stone falls rapidly in air?
🇳🇵 प्यारासुट हावामा बिस्तारै खस्छ तर ढुङ्गा छिटो खस्छ, किन? कारण दिनुहोस्।
NEB Board Strategy: Differentiate between surface area and upward air resistance acting on both objects.
Section 4 (Long & HOTS) • 4 MarksCompulsory Science & Tech📂 Force & Gravitation› Newton's Universal Law of Gravitation
NEB 2081 ExpectedHard
Q3.
The mass of Jupiter is and its radius is . Calculate the acceleration due to gravity on Jupiter (). If an astronaut weighs on Earth (), what will be his weight on Jupiter? ()
🇳🇵 बृहस्पति ग्रहको पिण्ड $1.9 \times 10^{27} \text{ kg}$ र अर्धव्यास $7.1 \times 10^7 \text{ m}$ छ। बहस्पतिको गुरुत्वप्रवेग ($g_J$) हिसाब गर्नुहोस्। यदि पृथ्वीमा एक अन्तरिक्षयात्रीको तौल $700 \text{ N}$ भए बृहस्पतिमा कति हुन्छ? ($g_E = 9.8 \text{ m/s}^2$)
NEB Board Strategy: Calculate mass on Earth first ($m = W_E / g_E$), then find weight on Jupiter ($W_J = m \times g_J$).