Conservation Of Energy

What is the law of conservation of energy?

Energy cannot be created or destroyed; it can only be transferred from one form to another.

What is kinetic energy?

The energy due to the motion of an object.

What is potential energy?

The energy of an object due to its position or state.

What is the formula for gravitational potential energy (GPE)?

GPE = mgh, where m is mass, g is the acceleration due to gravity (9.8 m/s²), and h is height.

What is the formula for kinetic energy (KE)?

KE = 1/2 mv², where m is mass and v is velocity.

What is elastic potential energy (U)?

U = 1/2 kx², where k is the spring constant and x is the displacement.

How do you find total mechanical energy in a system?

Total mechanical energy (E) = Gravitational Potential Energy (GPE) + Kinetic Energy (KE).

What happens to potential energy when kinetic energy increases in a closed system?

Potential energy decreases when kinetic energy increases, maintaining the total energy balance.

What is damping in a physical system?

The process of dissipating vibrational energy due to friction, air resistance, and inertia.

What applications utilize damping for stability?

Anti-earthquake buildings and Tuned Mass Dampers (TMDs) in structures.

What factors increase the damping effect in materials?

Higher viscosity increases internal friction, resulting in more energy damped.

How is energy classified in the context of this physics lesson?

Energy is classified into kinetic and potential forms, including gravitational, elastic, and chemical energies.

What is the significance of Hooke's Law?

The force exerted by a spring is proportional to its displacement from equilibrium (F = kx).