GRAVITIONAL FIELDS

What is a Gravitational Field?

A region in which a body experiences a non-contact force due to its mass.

Explain Newton's 3rd Law.

All matter attracts other matter; actions have equal and opposite reactions.

What does Gravitational field strength (g) refer to?

The force per unit mass experienced by an object in a gravitational field, equal to 9.8 N/kg on Earth.

Define Force Field.

A region around an object that can exert force on another object without physical contact.

What is the Weak Nuclear Force?

One of the four fundamental forces, responsible for processes like beta decay.

What is Normal Force?

The force acting perpendicular to surfaces in contact, opposing gravity.

What is Apparent Weight?

The weight an object appears to have, accounting for other forces like acceleration.

What does the Coefficient of Friction (μ) represent?

A scalar showing the frictional force between two bodies; μS for static and μK for kinetic.

What is Kinetic Friction?

The force opposing motion when two surfaces slide against one another.

Define Static Friction.

The frictional force that keeps two surfaces from sliding against each other.