ENERGY STORES AND TRANSFERS Flashcards
(22 cards)
WHAT HAS KINETIC ENERGY?
Anything moving
WHAT HAS THERMAL ENERGY
Any object. The hotter it is, the more energy it has.
WHAT HAS CHEMICAL ENERGY?
Anything that can release energy
WHAT HAS GRAVITATIONAL POTENTIAL ENERGY?
Anything that has a mass
WHAT HAS AN ELASTIC POTENTIAL ENERGY?
Anything that is stretched
WHAT HAS ELECTROSTATIC ENERGY?
Electric charges interacting/ repelling
WHAT HAS MAGNETIC ENERGY?
Two magnetic objects that interact/ repell
WHAT HAS NUCLEAR ENERGY.
Atomic nuclei have energy that can be released in nuclear reactions
WHAT IS A SYSTEM?
Single objects or group of objects you’re interested in
WHAT IS A CLOSED SYSTEM?
Neither matter nor energy can enter or leave
WHAT HAPPENED WHEN A SYSTEM CHANGES?
Energy is transferred into or away
WHAT ARE THE FOUR MAIN ENERGY TRANSFERS?
- Mechanically
- Electrically
- Heating
- Radiation
WHAT IS THE CONSERVATION OF ENERGY?
Energy can be transferred usefully, stored or disrupted but can never be created or destroyed
- can be used to calculate how much energy is transferred to certain stores
WHAT KS THE KINETIC ENERGY EQUATION
-
WHAT IS GRAVITATIONAL POTENTIAL ENERGY EQUATION?
H
WHEN ENERGY IS LOST FROM A GRAVITATIONAL POTENTIAL ENERGY STORE….
Energy is gained in kinetic energy store
WHAT IS THE ELASTIC POTENTIAL ENERGY EQUATION.
V
WHAT IS SPECIFIC HEAT CAPACITY?
Energy needed to raise the temperature of 1kg of the material by 1*C
WHAT SO THE EQUATION FOR SPECIFIC HEAT CAPACITY?
X
WHAT IS POWER?
Rate of energy transfer or rate of doing work
WHAT IS THE POWER EQUATION TO FIND OUT THE RATE OF DOING WORK.
X
WHAT IS THE POWER EQUATION TO FIND OUT THE RATE OF ENERGY TRNASFER?
X
