Scientific Principles Flashcards
(18 cards)
When is there more KE?
There is more kinetic energy with objects that have more mass and more speed.
What is KE?
Kinetic energy is the occurrence of the movement of an object.
What has GE?
Any elevated object has gravitational energy.
When does an object’s GE increase?
Any object’s gravitational energy increases as its elevation and/or mass increases.
What can all energy do?
Energy can be transformed (converted) from one type to another.
What has EE?
Any deformed rigid object has elastic energy.
When does an object’s EE increase?
An object’s elastic energy increases as its deformation and/or its rigidity increases.
Where can energy transfer?
Energy can be transferred between systems.
What can energy not do?
Energy cannot be created or destroyed (if energy appears to be missing, either it has been transformed to a type or has been transferred to another system.)
What does every object have?
Every object has thermal energy.
When does an object’s TE increase?
An object’s thermal energy increases as its temperature and/or mass increases.
What is TE?
Thermal energy is the total kinetic energy of molecules or atoms that results from their random motion. The hotter the object, the faster its particles move.
What is associated with the back and forth motion of particles?
Sound is associated with the back and fourth motion of particles.
What happens when an object emits sound?
When an object emits sound, it loses some of its energy to the surroundings.
What does CE do in a chemical reaction?
Chemical energy is transformed into other types of energy during a chemical reaction.
When does an object’s CE increase?
An object’s chemical energy increases as its mass increases. The type of substance an object is made of influences the amount of energy it has.
What can ELE do with an energy source?
Electrical energy can be transformed into other types of energy in a closed conducting circuit with an energy source.
What transforms CE into ELE? What transfers KE into ELE?
A battery transforms chemical energy into electrical energy. A generator transfers kinetic energy into electrical energy.
