U11:Gravitation Force Problems, Orbit Problems

Front

What is the universal Gravitational constant (G)?

Back

Front

How do you calculate weight on a planet?

Back

Weight (W) is calculated using the formula: W = m * g, where m is mass and g is the acceleration due to gravity on that planet.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, while mass is the amount of matter in the object. Weight varies with gravity, but mass remains constant.

Front

If a student weighs 651N on Earth, what is her mass?

Back

To find mass, use the formula: m = W/g. On Earth, g is approximately 9.81 m/s². Thus, m = 651N / 9.81 m/s² = 66.4 kg.

Front

What is the force exerted by a planet on an object?

Back

The force exerted by a planet on an object is equal to the weight of the object on that planet, calculated as F = m * g.

Front

What is the gravitational force between two objects?

Back

Front

What happens to gravitational force if the distance between two objects increases?

Back

Front

What is the significance of the gravitational constant (G) in calculations?

Back

The gravitational constant (G) is crucial for calculating the gravitational force between two masses and is a fundamental constant in physics.

Front

How does a satellite maintain its orbit around Earth?

Back

A satellite maintains its orbit due to the balance between its inertia (tendency to move in a straight line) and the gravitational pull from Earth.

Front

What is the force exerted on the Earth by a satellite in orbit?

Back

According to Newton's third law, the force exerted on the Earth by the satellite is equal in magnitude and opposite in direction to the force exerted on the satellite by the Earth.