Energy and 10 different types
Heat Energy
Types of H.E
Radiation
Convection
conduction
Rise in Temperature
Transfer of thermal energy
Q=M.C.(Tf-Ti)
Movement of atoms and molecules
Gravitational Energy
Examples of G.E.
Water that is behind a dam.
A raised weight
Due to gravity
Associated with Gravitational Field
G= MGH
Natural force
Mechanical Energy
Types of mechanical energy
rotational kinetics
Transnational kinetics
Due to motion
example-ideal simple pendulum
K.E.= 1/2 mv2 + mgh
Sum of kinetic energy and potential energy
Chemical Energy
petroleum
wood
coal
S.I. Unit- joule
C.E=6CO 2 + 6H 2 O – C 6 H 12 O6+ 6O2
energy stored in chemicals
Light Energy
Electromagnetic radiation
light bulbs
Sunlight
Energy of Light = (6.626 × 10-31 × c) / w(m)
travels in straight lines
Kinetic Energy
energy of motion.
airplane
A river flowing at a certain speed
K.E= [Mass × Velocity2] × 2-1
easiest to observe
Nuclear Energy
Energy released during nuclear fission
Example= nuclear fission
N.E= mc2
Splitting atoms in a reactor to heat
Potential Energy
Energy stored in an object
Example
Stretching a rubber band
pendulum
P.E= mgh
Dimensional formula
M1L2T-2
Energy possessed by a body
Sound energy
Musical instruments
Gulping Water
Belching
longitudinal Waves
S.E= Sound power/ Area
S.I unit= Watt
Due to vibration
ENERGY
Dimension formula
[E] = [ML2T-2]
Examples
releasing the arrow from the bow
shooting a rubber band
S.I. Unit= Joule
Quantitative property
Work
Magnetic Energy
magnetic field
Magnitude and direction at the same
Example-generator
B = μ0/2πr
