The acceleration due to gravity on Earth’s surface is approximately 9.81 m/s². This value varies slightly depending on altitude and geographical location but is generally taken as a standard for calculations. Class 11 Physics Gravitation CBSE EXAM 2024-25
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The Moon’s surface is rocky and covered with craters, regolith (a layer of loose dust and debris), mountains, and plains called maria, formed by ancient volcanic activity. It lacks an atmosphere, resulting in extreme temperatures and no weathering. Class 11 Physics
An elliptical orbit is the oval-shaped path followed by a celestial body around another due to gravitational forces, as described by Kepler’s first law of planetary motion. Class 11 Physics Gravitation CBSE EXAM 2024-25
Orbital speed is the velocity a body needs to maintain a stable orbit around another body, determined by gravitational force and distance from the central object. Class 11 Physics Gravitation CBSE EXAM 2024-25
Kepler refers to Johannes Kepler, a renowned astronomer who formulated three fundamental laws of planetary motion, describing their elliptical orbits around the Sun. Class 11 Physics Gravitation CBSE EXAM 2024-25