Understanding Specific Heat and Thermal Energy

What is specific heat?

• The amount of energy required to raise the temperature of one kilogram of a substance by one degree Fahrenheit.

• The amount of energy required to raise the temperature of one kilogram of a substance by one degree Kelvin.

• The amount of energy required to raise the temperature of one liter of a substance by one degree Celsius.

• The amount of energy required to raise the temperature of one gram of a substance by one degree Celsius.

Which of the following is a good thermal conductor?

• Plastic

• Fiberglass

• Rubber

• Metal

What does the equation Q = mcΔT represent?

• The relationship between velocity, time, and distance.

• The relationship between force, mass, and acceleration.

• The relationship between pressure, volume, and temperature.

• The relationship between heat energy, mass, specific heat, and temperature change.

If you have two metals with the same mass, which will heat up faster?

• The one with lower density.

• The one with higher specific heat.

• The one with lower specific heat.

• The one with higher density.

How do you calculate the mass of air in a room if given its density and volume?

• Multiply the density by the volume.

• Subtract the density from the volume.

• Divide the density by the volume.

• Add the density to the volume.

What is the purpose of a calorimeter?

• To measure the speed of sound in a material.

• To measure the heat transfer between substances.

• To measure the density of a liquid.

• To measure the electrical resistance of a material.

In a calorimeter experiment, what happens to the heat lost by a hot metal?

• It is converted into sound energy.

• It is lost to the air.

• It is absorbed by the water in the calorimeter.

• It is absorbed by the surroundings.

What is the final temperature in a calorimeter experiment if a hot metal is placed in cooler water?

• An equilibrium temperature between the metal and water.

• The average temperature of the room.

• The temperature of the water.

• The temperature of the metal.

How is specific heat capacity related to the speed of heating?

• Higher specific heat means faster heating.

• Specific heat only affects cooling speed.

• Specific heat does not affect heating speed.

• Lower specific heat means faster heating.

What is the unit of specific heat capacity?

• Calories per gram per Celsius

• Watts per kilogram per Kelvin

• Joules per kilogram per Kelvin

• Joules per gram per Celsius