Page 53 - Science Course 1 (Book 2)

Uses of Thermal Energy Mo8-L3a: What are the Uses of Thermal Energy?

Lesson 3

In this topic, you will learn the following Heat engine
lessons: is a machine that converts thermal energy into
mechanical energy.
Mo.8 – L3a: How does a thermostat work?
Mo.8 – L3b: What are the energy transformations
in a car engine?

What are the Uses of Thermal
Mo8-L3a
Energy?
KEY CONCEPTS:
1. How does the bimetallic coil in a thermostat
responded to heating and cooling?
2. What is one form of energy that is output from a
heat engine?

Vocabulary A-Z

Let us learn some vocabulary

Heating appliance Let’s Begin
is a device that converts electric energy into thermal
energy.
Thermal Energy Transformations

Thermostats transform thermal energy into mechan-
ical energy that switch heaters on and off.

Even though many devices transform energy from
one form to another or transfer energy from one
place to another, the total amount of energy does not
change.

Thermostat
is a device that regulates the temperature of a
system.

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