Energy and Energy transformations Flashcards
What is energy?
The ability to do work.
What is an example of energy?
Turning on lights.
What is NOT an example of energy?
Playing outside.
What is potential energy?
An object having stored energy based on its relative position within a system or condition.
What is kinetic energy?
Energy that something has while in motion.
Relate kinetic energy with mass and speed.
Something that is moving has mass, and when something is going faster, the energy increases. when something is going slower the less energy it has.
Forms of potential energy
mechanical,nuclear,chemical,gravitational
examples of potential energy
A skydiver waiting to jump from an airplane, a rubber band that has been stretched out between two fingers, water sitting behind a dam, and the energy in a battery.
definition and example of work
Activity involving mental or physical effort done in order to achieve a purpose or result.
Ex:Moving a table. Pushing and pulling a door. Walking. Lifting a rock.
Definition of mechanical energy and exapmple
The energy that is possessed by an object due to its motion or due to its position.
Ex;Turning a doorknob.
Definition of sound energy and ex.
Energy comes from vibrations moving through something. It makes sound. Ex; beating drums
Definition of thermal energy and ex.
the energy contained within a system that is responsible for its temperature. Ex; toast in a microwave
Definition of electric energy and ex.
the power an atom’s charged particles have to cause an action or move an object. ex;Batteries that power electronic devices.
Definition of radiant energy and ex.
the physical energy resulting from electromagnetic radiation, usually observed as it radiates from a source into the surrounding environment. Ex; the sun
Definition of nuclear energy and ex.
the energy released during nuclear fission or fusion, especially when used to generate electricity. Ex:nuclear fission
