Name ________________________
Science - _____
WCJH
Date ____________________________
Energy changes from one kind to another. We never lose any energy. When we use our
muscles, the chemical energy is then converted into mechanical energy. We say it is
converted. For example, our bodies turn food into chemical energy. We use our muscles
and so chemical energy is turned into mechanical energy.
This characteristic of energy is stated in a law called the Law of Conservation of Energy. It
states that energy cannot be created or destroyed, but can be changed from one form to
another.
Look at the pictures and their descriptions below. Identify the energies involved in each
conversion. The first example has been done for you.
Action
Energy Started With
Energy Transformed
(may be more than 1)
Electrical
Sound,
Thermal,
Mechanical
Blow drying
Car moving
Lamp
Bell Ringing
Nuclear Power Plant
Action
Energy Started With
Energy Transformed
(may be more than 1)
Playing Piano
Riding a Bike
PART 2: HOUSEHOLD ENERGY CONVERSIONS:
View the diagram below and explain the areas where electrical energy is being transformed
into other forms of energy. Identify one transformation in each room of the house and
explain how the electrical energy is being transformed in the room.
Bathroom
Bedroom
Bedroom
Bedroom
Kitchen
Living Room
Basement