This is part of the HSC Physics syllabus Module 5: Advanced Mechanics.
Newton’s law of gravitation, states that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them.
So let’s learn to apply Newton’s law of gravitation to:
- Predict the gravitational field strength at any point in a gravitational field
- Predict the gravitational field strength on the surface of a planet
Gravitational Field follows this equation:
g = \frac{GM} {r^2}- g is the gravitational field strength
- G is the gravitational constant
- M is the mass of the plant
- r is the radius
Gravitational field strength is:
- Proportional to the mass of the orbital body.
- Inversely proportional to the radius squared
Predict the gravitational field strength at any point in a gravitational field
Predict the gravitational field strength on the surface of a planet
