Gravitational Potential Energy, Kinetic Energy, and Elastic Potential Energy Plus Their Formulas

GPE

________ can be found by multiplying the mass and height of an object by "g.

EPE

________ can be found by @ @* multiplying half of the spring constant* @ @ by how much the object has been stretched or compressed.

KE

________ is the product of half the objects mass and its velocity squared.

Note

"g"- is the most common value of GPE for an object near the Earths surface where gravitational acceleration is estimated at a constant of 9.8 meters/second^2

*Note

A **joule *is the amount of energy exerted when a force of one newton is applied over a displacement of one meter

SI Units

Newtons/meters (N/m)

SI Units

Meters (m)

Gravitation Potential Energy

The energy an object posses due to its position in a gravitational field

GPE can be found by multiplying?

The mass and height of an object by “g”

GPE Formula

GPE= mass * g * height

SI Unit for Mass?

Kilograms (kg)

SI Unit for g?

Meters/Second^2

SI Unit for Height?

Meters (m)

What unit is GPE measured in?

Joules (J)

Kinetic Energy

An object's energy due to being in motion

KE can be found by multiplying?

Half of the object's mass by its velocity squared

KE Formula

KE=1/2m * v^2

Velocity

The speed of an object in a given direction

What unit is KE measured in?

Joules (J)

Elastic Potential Energy

Energy stored as a result of applying a force onto an elastic object by stretching. --- It’s the energy stored in a spring

EPE can be found by multiplying?

Half of the spring constant by how much the object has been stretched or compressed

EPE Formula

EPE= 1/2k (spring constant) * x (displacement)^2

k (the spring constant)

How stiff the spring really is

x (displacement)

How much the spring has been stretched or compressed.

What SI units are k measured in?

Newtons/meters (N/m)

What SI unit is x measured in?

Meters (m)

What unit is EPE measured in?

Joules (J)