VCE Together Year 12 Physics: Effects of Gravitational Fields

#### Physics

• How do things move without contact?
• How are fields used to move electrical energy?
• How fast can things go?
• How can waves explain the behaviour of light?
• How are light and matter similar?
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# Effects of Gravitational Fields

This lesson is on the Effects of Gravitational Fields, which is part of Unit 3 Area of Study 1 for VCE Physics.

### Force of Gravity Between Two Objects

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:

• Determine the force of gravity between two objects

Learn to investigate the orbital motion of planets and artificial satellites when applying the relationships between the following quantities:

• Gravitational force

The formula for gravitational force is the following:

F = \frac{G M_1 M_2}{R^2}
• G is the gravitational constant
• M is the mass of the planets in question
• R is the radius between planets

### Gravitational force

The following videos will guide you through work and energy, including gravitational potential energy and the related equations and theory-based around the special case of conservation of mechanical energy.

### Gravitational Potential Energy

This video will take you through gravitational potential energy and practice problems.

Looking for more resources? Check out more of our VCE Physics resources here!

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