U11:Gravitation Force Problems, Orbit Problems

Front

What is the formula to calculate weight on a planet?

Back

Weight (W) = Mass (m) × Gravitational Acceleration (g)

Front

How do you calculate mass from weight?

Back

Mass (m) = Weight (W) / Gravitational Acceleration (g)

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.81 m/s².

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, which depends on its mass and the gravitational field strength.

Front

What is the formula for gravitational force between two objects?

Back

F = G * (m1 * m2) / r², where G is the gravitational constant.

Front

What is the gravitational constant (G)?

Back

G = 6.674 × 10⁻¹¹ N(m/kg)².

Front

What is centripetal acceleration?

Back

Centripetal acceleration is the acceleration directed towards the center of a circular path, calculated as a_c = v²/r.

Front

How do you find the force exerted on an object in circular motion?

Back

F = m * a_c, where a_c is the centripetal acceleration.

Front

What is the significance of a satellite's weight in orbit?

Back

A satellite's weight in orbit is the gravitational force acting on it, which provides the necessary centripetal force for circular motion.

Front

How does weight change on different planets?

Back

Weight changes based on the gravitational acceleration of the planet, but mass remains constant.