How does heat flow?
Always from warm to cold
It depends on the temperature
Always from cold to warm
Both warm to cold & cold to warm
_________ is the ability to do work
Power
Strength
Energy
Force
The amount of energy required to raise the temperature 1ºC is called____?
Heat Capacity
Thermal Energy
Specific Heat
Temperature
Which will most likely occur when raw egg is placed on black pavement on a hot, summer day?
The egg will reflect the heat and make the pavement hotter.
The egg will absorb the heat and leave the pavement hotter
The pavement will absorb the heat from the egg.
The pavement will conduct the heat and cook the egg.
Which is energy in motion?
Potential energy
Kinetic energy
How is heat transferred when boiling a pot of water on the stove?
radiation
conduction
convection
combustion
Warm air is __________ dense than cold air and rises creating convection currents.
more
less
A high specific heat means...
It requires more energy to change temperature
It heats up quickly with energy added
Another word for "thermal energy" is ________________
Electrical energy
Heat energy
Light energy
Solar energy
What is the variable for energy in the Heat Equation?
Q
Cp
T
J
When barium hydroxide and ammonium chloride react, the temperature of the mixture decreases. What kind of reaction is this?
Decomposition
Endothermic
Exothermic
Indothermic
Which describes what can happen as a result of radiation?
A piece of wood burns in a fire.
A can of soup is heated in a pot on a stove.
A shirt is hot after having been ironed.
A car’s inside temperature rises to over 100 degrees.
What would be the effect on the particles if more heat is supplied to the system?
They would speed up
They would slow down
They would stop moving
There would be no effect
What is the variable for change in Temperature in the Heat Equation?
J
Cp
T
Q
What is the variable for change in Mass in the Heat Equation?
M
Cp
J
T
The amount of energy required to raise the temperature 1ºC for every gram is called____?
Temperature
Thermal Energy
Kinetic Energy
Specific Heat
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
radiation
insulation
conduction
convection
When calcium reacts with water, the temperature changes from 18°C to 39°C. Which statement is correct?
The reaction is exothermic
The solution at the end is acidic
The reaction is endothermic
The reaction is reversible
What term is given to a reaction which transfers heat energy to the surroundings?
Reversible
Exothermic
Reversible
Endothermic