PPT: Energy and Machines | Science Class 5 PDF Download

 Page 1


FORCE AND
MACHINES - 2
Page 2


FORCE AND
MACHINES - 2
To do any work, we need energy. Energy is the ability to
do work. There are many forms of energy. Let us read
about some of them.
Page 3


FORCE AND
MACHINES - 2
To do any work, we need energy. Energy is the ability to
do work. There are many forms of energy. Let us read
about some of them.
HEAT ENERGY
Heat is a form of energy. Apart from sun, we get heat energy by burning of
fuels like coal, kerosene, LPG (Liquefied Petroleum Gas) and wood.
Page 4


FORCE AND
MACHINES - 2
To do any work, we need energy. Energy is the ability to
do work. There are many forms of energy. Let us read
about some of them.
HEAT ENERGY
Heat is a form of energy. Apart from sun, we get heat energy by burning of
fuels like coal, kerosene, LPG (Liquefied Petroleum Gas) and wood.
LIGHT ENERGY
Light energy helps us to see things. Sun, electric
bulb, tube light and candle are some sources of
light.
Page 5


FORCE AND
MACHINES - 2
To do any work, we need energy. Energy is the ability to
do work. There are many forms of energy. Let us read
about some of them.
HEAT ENERGY
Heat is a form of energy. Apart from sun, we get heat energy by burning of
fuels like coal, kerosene, LPG (Liquefied Petroleum Gas) and wood.
LIGHT ENERGY
Light energy helps us to see things. Sun, electric
bulb, tube light and candle are some sources of
light.
ELECTRICAL ENERGY
Appliances like fan, computer, washing
machine and television use electrical
energy. Electricity is generated at power
stations and supplied to our homes through
wires.