L5 Radiation

LESSON 5: HEAT TRANSFER - RADIATION

UNIT 5 ENERGY

6.P.3.1 Illustrate the transfer of heat energy from warmer

objects to cooler ones using examples of conduction,

radiation, and convection and the effects that may result.
I CAN explain how thermal energy is transferred
from one object to another through conduction,

convection, and radiation.

Open Ended

What is heat?

HEAT TRANSFER

If it was a cold day, what might you do to stay warm?

HEAT TRANSFER

You may wear
several layers of
clothing, sit next
to a heater, or
avoid drafty
windows.

HEAT TRANSFER

If it was a hot day,
what might you do
to keep cool?

HEAT TRANSFER

On a hot day, you
may wear light
clothing and sit in
the shade of a tree.

HEAT TRANSFER

In both of these situations, you are trying to control the

transfer of energy between yourself and your surroundings.

Open Ended

Name all the ways the bunny was melted

Study Jams – Heat

Eureka! Radiation

RADIATION

Radiation is energy that travels
as electromagnetic waves,
which include visible light,
microwaves, and infrared light.
The Sun is the most significant
source of radiation that you
experience on a daily basis.
However, all objects - even you -
emit radiation and release
energy to their surroundings.

RADIATION

Consider radiation from the Sun.
You can feel radiation as heat
when radiation from the Sun
warms your skin. The radiation
emitted from the Sun strikes the
particles in your body and
transfers energy. This transfer of
energy increases the movement
of particles in your skin, which you
detect as an increase in
temperature.

RADIATION IN REAL LIFE

Which of

these have

you

experienced?

Multiple Select

Select all that apply. Which of the following are examples of radiation?

• microwave

• Sunlight

• Fire

• touching a piece of hot metal

Multiple Choice

Which describes what can happen as a result of radiation?

•  A piece of wood burns in a fire.

• A shirt is hot after having been  ironed.

• A can of soup is heated in a pot on a stove.

• A car’s inside temperature rises  to over 100 degrees on a sunny day.

Multiple Choice

How does heat energy reach the Earth from the Sun

• Convection

• Radiation

• Conduction