Transcript On-Level PPT

Energy Vocabulary
Unit 2.1
On-Level Version
Energy
• The ability to do work or cause
change. (Work – the movement of an
object through a distance).
Science Video for Kids: What Is Energy?
• https://www.youtube.com/watch?v=fjuvatIoSzY
The Law of Conservation of Energy
• In physics, the law of conservation
of energy states that the energy can
not be created or destroyed, only
transformed.
Law of Conservation of Energy
(Roller Coaster Demo)
• https://www.youtube.com/watch?v=LrRdKmjhOgw
Kinetic Energy
• Energy resulting from the motion of an
object. The amount of kinetic energy an
object has is determined by the mass and
speed (velocity) of the object.
Potential Energy
• This is stored energy. An object has
potential energy because of its position
or composition.
• Ex: A bike on top of a hill.
Potential and Kinetic Energy for Kids
• https://www.youtube.com/watch?v=IqV5L66EP2E
Energy Transformation
• Energy can be transformed
(changed) from one form to another.
• EX: Flipping a switch to turn on a light.
How do energy convert? - Studi Physics
• https://www.youtube.com/watch?v=ftj23FRS2LI
Mechanical Energy
• The energy associated with the motion of
an object.
• EX: Tossing a ball in the air.
Elastic Potential Energy
• Stored as a result of deformation of an
elastic object, such as the stretching of a
spring.
Gravitational Potential Energy
• Energy an object possesses because of its
position in a gravitational field.
Friction
• A force that opposes the motion of an
object. Friction is present when two
objects are in contact with one another.
Joule
• The standard unit of work or energy in the International System
of measurements (SI), equal to the work done by a force of one
newton when its point of application moves through a distance
of one meter in the direction of the force: equivalent to 10 7 ergs
and one watt-second.
• EX: One joule is equal to the work it takes to make a watt of power for
a second. In physics, it's common to talk about joules of energy — one
example used to illustrate a joule is lifting an apple, which weighs about
one Newton.