Investigating Heat and Temperature
May 25, 2015
Investigating Heat and Temperature
LabsLabs Lab 1: Hot and Cold Lab 2: Tracking the Heat
Hot and Cold:Hot and Cold:Comparing Heat and Comparing Heat and TemperatureTemperature
Objectives: The student will illustrate and
explain the results of addition or subtraction of thermal energy on the motion of molecules Distinguish between heat and thermal energy
Key Terms:Key Terms:HeatTemperatureThermal Energy
Heat The energy transferred
between two substances which are at different temperatures
Temperature The
measurement of the average kinetic energy of the molecules of a substance
Kelvin Celsius
Thermal Energy The term used
to describe the total energy of the particles that make up a substance in an energy exchange
Essential Learnings Hot and cold are relative terms,
defined by the individual much like large and small, and they are not scientific terms.
Essential Learnings Molecules of all substances,
regardless of their state of matter (solid, liquid or gas) are in constant motion and have Kinetic Energy
Temperature is directly related to the rate of motion of molecules It is the measure of average kinetic energy
Essential Learnings Thermal energy is defined as
the energy of a substance, both its average kinetic energy (temperature) and the kind of molecules in the substance
Essential Learnings Heat is energy that is
transmitted between substances based on differences in the kinetic energy of their molecules
Heat moves from “hot” to “cold”
Tracking The Heat:Tracking The Heat:Transferring Thermal EnergyTransferring Thermal Energy
Objectives: The student will investigate
and understand processes that transfer energy between substances Understand that thermal energy is the total energy of the particles that make up a substance
Objectives: The student will investigate and
understand processes that transfer energy between substances Understand that heat is the transfer of energy from one object of higher temperature to one object of a lower temperature
Objectives: The student will investigate
and understand processes that transfer energy between substances Understand that temperature is a measure of the average kinetic energy of the particles in a substance
Key Terms:Key Terms: Thermal Equilibrium Conduction
Thermal Equilibrium Term used to describe the
equalization of temperatures between a substance and its surroundings.
Conduction The transfer of thermal energy
through direct contact
Essential Learnings When two materials are in
contact, energy is transferred from the one with the higher temperature to the one with the lower temperature by conduction due to the kinetic energy of the particles in contact
Essential Learnings The vibrating molecules from the
object with the higher temperature come in contact with the molecules of object with the lower temperature.
Energy is transferred causing the cooler object to “warm up” as molecule vibration increases
Essential Learnings Materials at Thermal
Equilibrium have the same temperature; objects come to thermal equilibrium with their surroundings Room temperature objects don’t feel like
room temperature because of human body temperature, insulators and conductors.
Essential Learnings Hypothermia is a medical
condition when a human’s body temperature drops from its normal body temperature to one much lower because of the lost heat to the surrounding environment