Vocabulary
Energy Basics
Heat Transfer
Law of Conservation of Energy and Energy Transfer
Heat and Matter
100
The total kinetic and potential energy of all particles of an object.
What is Thermal Energy?
100
This happens to the energy in an object when its state changes from cold to hot.
What is energy is increased or absorbed?
100
Heat is transferred through direct contact of molecules or objects.
What is conduction?
100
Energy cannot be created or destroyed, only transferred.
What is the law of conservation of energy?
100
This type of material feels cold to the touch and can easily take in heat energy.
What is a conductor?
200
The transfer of thermal energy from a warmer object to a cooler object.
What is Heat?
200
Potential energy is energy in stored form. Kinetic energy is energy that is in motion. Which of these does NOT describe potential energy transforming into kinetic energy?
a bicycle tire spinning
a boulder rolling down a hill
a person swinging a hammer
a person using a lawn mower filled with gasoline
What is a bicycle tire spinning?
200
Heat is transferred through the movement of fluid molecules.
What is convection?
200
Describe the transfer of energy when turning on a light.
What is electrical to light to thermal energy?
200
This type of material doesn't feel hot or cold and doesn't take in heat energy.
What is an insulator?
300
A measure of the average energy of motion of the particles of a substance.
What is Temperature?
300
This happens to the energy in an object when the change of state is from hot to cold.
What is energy is decreased or released?
300
Heat is transferred through indirect contact or waves.
What is radiation?
300
Describe the flow of energy when starting a car.
What is chemical to electrical to thermal energy?
300
Three examples of a conductor are...
What are metal, tile, and glass?
400
The movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another.
What is a convection current?
400
This is what happens to the molecules of ice as it turns into water.
What is kinetic energy is increased?
400
Will made a cup of hot tea and placed it on a table. A few minutes later, he picked up the cup and touched the warm table where the cup had been sitting. He put the cup back in the same place and left the kitchen. When he returned a few hours later, he noticed the table and the cup felt the same temperature as each other. Describe the heat flow between the cup and the table.
What is, the heat flowed from the cup through the table through the process of conduction.
400
Chemical energy becomes this type of energy when we eat food.
What is thermal energy?
400
When sitting in a car on a hot summer day, the seat belt buckle feels scolding hot and the seats feel kind of warm. Describe the difference in specific heat between these objects.
What is, the seat belt buckle has a lower specific heat than the car seat because it gets hotter with less energy?
500
The amount of heat required to raise the temperature of 1 kilogram of a material by 1 kelvin, which is equivalent to 1℃.
What is Specific Heat?
500
When heat is transferred from one object to another this happens.
What is, heat is transferred from the warmer object to the cooler object until they reach the same temperature?
500
Mario takes a cold can of soda out of the refrigerator. He sets the cold can on a table in the room and leaves for a few hours. Describe what will occur.
What is, heat from the air will move into the soda can until both reach the same temperature?
500
This happens to the sun's energy after it has been used on earth.
What is, the energy is transformed into a different form?
500
This phenomena is described by a beach, where the sand requires less energy to be heated up than the water.
What is specific heat?