Physics Term 2

Force

A vector quantity that describes a push or pull on an object, having both magnitude and direction.

Effects of a force

Set a body in motion, modify the motion of an object, deform the shape of an object.

Point of application

The exact location where a force is applied to a body.

Line of action

The direction of the applied force, which can be horizontal, vertical, or oblique.

Magnitude

The numerical value of the amount of force applied on an object, expressed in Newtons.

Contact forces

Forces exerted between two bodies that are physically in contact.

Non-contact forces

Forces that act from a distance without physical touch between objects.

Weight

The gravitational force exerted by a planet on an object, calculated as Weight = Mass * Gravity.

Hooke's Law

States that the force needed to stretch or compress a spring is directly proportional to the distance it is stretched or compressed.

Force of Friction

A contact force that usually opposes the motion of a body as it slides over a rough surface.

What does Hooke's Law describe?

It describes the relationship between the force applied to a spring and the distance it is stretched or compressed.

What is the formula for calculating weight?

Weight = Mass * Gravity.

What are the characteristics of a force?

Point of application, line of action, direction, and magnitude.

Give an example of a contact force.

Tension, friction, muscular, buoyant, and drag forces are all examples of contact forces.

Define the term 'direction' in the context of force.

Direction refers to the way in which a force is applied, such as up, down, left, right, and various angles.

Hooke's Law Formula

The formula for Hooke's Law is F = k * x, where F is the force applied, k is the spring constant, and x is the distance the spring is stretched or compressed.

Sorting Forces: Contact Forces

Contact forces include tension, friction, muscular, buoyant, and drag forces, which all require physical contact between objects.

Sorting Forces: Non-contact Forces

Non-contact forces include gravitational, magnetic, and electrostatic forces, which act at a distance without physical contact.