Definitions & Inferences
Random Heat
Insulator vs Conductor
Examples
Types of Heat Transfer
100
What are your 5 senses uses for observations?
touch, smell, taste, sight, hear
100
Heat and thermal energy are the same thing
false
100
A jacket is an
insulator
100
travels through empty space
radiation
100
What is the Earth's biggest source of radiation?
the sun
200
What is one observation you can make from the picture?
there are kids
200
What state of matter has the highest thermal energy?
Lowest?
gas
solid
200
Why does a lid or double wall keep an ice coffee cold for longer?
closed system
200
Can only happen in fluids like liquid or gas
convection
200
In order for heat to be transferred through conduction the objects must be
touching
300
What is one inference you can make from this classroom?
they are learning a new language
300
Heat always moves from __________ to __________.
hot cold
300
What is an example of a good conductor?
metal
300
Heat rising from a chimney
convection
300
Why does your hand feel cold holding an ice cube?
thermal energy leaving your hand
400
measures the average motion (kinetic energy) of the particles
temperature - thermometer
400
A big pot of boiling water and a small pot of boiling water have the same temperature (100°C), but which has more thermal energy?
larger pot - has more thermal energy because it has more moving particles
400
What is an insulator?
stops energy from entering or leaving an object
400
Roasting a marshmallow over a fire
radiation
400
gas turning into a liquid is
condensation
500
When two objects at different temperatures touch, heat flows until both objects are the same temperature. This balanced state is called
thermal equilibrium
500
What is the difference between an independent and dependent variable in an experiment?
independent - change
dependent - measure
500
Cooking spatulas are made of plastic because
they are insulators and do not less heat pass through
500
Explain how convection works and why
driven by differences in temperature, which cause changes in density within the fluid. A continuous circular motion, known as a convection current, forms
500
Liquid heating and turning into a gas is known as
evaporation