A | B |
The unit of heat is called | calorie. |
The mL is a unit of measurement of | volume. |
The gram is a unit of measurement of | mass. |
The calorie is a unit of measurement of | heat. |
The general kinds of energy are | kinetic and potential. |
Kinetic energy is | the energy of motion. |
Kinetic energy increases as velocity | increases. |
Potential energy is | energy that is stored up. |
Potential energy associated with objects that can be stretched or compressed is | elastic potential energy. |
Lifting an object to various heights gives it potential to do work is | gravitational potential energy. |
Energy associated with motion or position of an object is | mechanical energy. |
______ is the movement of thermal energy from one object to another. | Heat. |
Energy stored inside of atoms (e x. food) | chemial energy. |
Moving of electric charges is _____ energy. | electrical energy. |
Two general kinds of energy are | kinetic and potential. |
As an orange falls from its greatest height, what kind of energy increases? | kinetic. |
As an orange falls from its greatest height, what kind of energy decreases? | gravitational potential. |
Energy that can be used over and over without running out is | renewable energy. |
Eventually, fuel runs out. Therefore, fuel is a. | non-renewable source of energy. |
Matter is made up of very tiny | atoms. |
Average kinetic energy is | temperature. |
Total kinetic energy is | heat. |
T or F - most matter can exist in three states. | True. |
The terms that identify states of matter are | solid, liquid, gas. |
The temperature at which a solid changes to a liquid is called | melting point. |
The temperature at which a substance changes from a liquid to a solid is called | freezing point. |
A change from a liquid to a gas is called | vaporization. |
A change from the gas state to the liquid state is called | condensation. |
The expanding of matter when it is heated is known as | thermal expansion. |
The ways that heat can move are | conduction, radiation, convection. |
How is heat transferred in convection? | Heat is transferred by the movement of currents within a fluid. |
The circular motion of fluid caused by rising and sinking of heated and cooler fluid is | convection current. |
T or F --heat is thermal energy moving from a warmer object to a cooler object. | True. |
T or F - Radiation requires matter to transfer energy. | False. |
Heat transferred from one particle of matter to another without the movement of matter itself is | conduction. |
Heat transferred by the movement of currents within a fluid is | convection. |
Heat transferred by electromagnetic waves is | radiation. |
An example of conduction is | metal spoon in hot water. |
An example of convection is | heating a building or the atmosphere. |
An example of radiation is | the sun heating the Earth. |
When heat flows from one substance to another, what happens to the temperature of the substance giving off and the substance receiving the heat? | substance giving off decreases, substance receiving heat increases. |
A material that conducts heat well is | a conductor. |
A material that does not conduct heat well is | an insulator. |
Examples of conductors are | silver, tile. |
Examples of insulators are | air, fiberglass. |
A substance's specific heat is | the amount of energy required to raise the temperature of 1 kilogram of the substance by 1 kelvin. |
Does mass change during heating? | No. |
The conservation of energy is | when energy is transformed from one form to another. |
Most substances _____ when heated. | expand. |
Most substances _____ when they are cooled. | contract. |
What were the fixed points you used as reference points when making your temperature scale? | freezing and boiling points of water. |
What is the freezing point of water in celcius? | 0 degrees. |
What is the freezing point of water in fahrenheit? | 32 degrees. |
What is the boiling point of water in celcius? | 100 degrees |
What is the boiling point of water in fahrenheit? | 212 degrees. |
When an iron bar is heated it expands. Explain in terms of the Heat is energy model. | atoms move faster, collide, spread apart. |
The end of a copper wire is heated, the other end eventually becomes hot. Explain in ters of the heat is energy model. | atoms move faster, collide, domino effect (to other end). |