Vectors are quantities that have both magnitude and direction, used to represent physical phenomena such as displacement, velocity, and force. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25
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Linear momentum is the product of an object’s mass and its velocity, representing the quantity of motion it possesses. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25
The Earth’s oblate shape causes gravitational acceleration to be slightly stronger at the poles than at the equator, increasing a body’s weight when moved poleward. Class 11 Physics Gravitation CBSE EXAM 2024-25
For the same change in gravitational acceleration (g), height (h) and depth (d) are related by h = 2d. Class 11 Physics Gravitation CBSE EXAM 2024-25
At the Earth’s center, the weight of a body is zero because gravitational forces from all directions cancel out. Class 11 Physics Gravitation CBSE EXAM 2024-25
As altitude increases, the value of g decreases due to the increased distance from Earth’s center and gravitational pull. Class 11 Physics Gravitation CBSE EXAM 2024-25
The value of g depends on altitude, latitude, Earth’s shape, local geology, and the Earth’s rotation. Class 11 Physics Gravitation CBSE Exam 2024-25
By using gravitational force equations, Earth’s mass and density can be estimated from gravitational constant and Earth’s radius. Class 11 Physics Gravitation CBSE Exam 2024-25
Acceleration due to gravity is the force per unit mass, calculated as the gravitational constant multiplied by Earth’s mass divided by distance squared. Class 11 Physics Gravitation CBSE EXAM 2024-25
Gravitational force is directly proportional to the product of masses and inversely proportional to the square of the distance. Class 11 Physics Gravitation CBSE EXAM 2024-25