Specific Heat and Heat Transfer Test

Which of the following will happen when you heat up a substance with a HIGH specific heat?

• The temperature will increase quickly
• The temperature will increase slowly
• The specific heat has no effect on temperature change

The specific heat of water is 4.18 J/g°C. How many joules of heat energy are required to heat 400 g water from 20°C to 70°C?

• 4,785 J
• 83,600 J
• 150,480 J
• 2.340,800 J

A 55 g sample of an unknown metal requires 2,140 J of heat to change its temperature by 100°C. Based on the chart, what is the identity of the metal?

• Iron
• Nickel
• Tin
• Zinc

A material that allows heat or electricity to flow through it easily is called _____________.

• Conductor
• Insulator
• Radiation

Through which of the following state(s) of matter will conduction most commonly occur?

• liquids and gases
• solids and liquids
• solids
• gases

Heat energy is transferred from the metal pot to the metal handle through _________.

• radiation
• conduction
• convection

In Room C, thermal energy is transferred from the fireplace to the people by _______.

• Conduction
• Convection
• Radiation
• Thermal Energy

Tori applies 5,000 J of heat to 30g samples of three different metals. How will she know which sample has the LOWEST specific heat value?

• It will be the one with the highest temperature after heating
• It will be the one with the lowest temperature after heating
• It will be the one with the highest mass after heating
• It will be the one with the lowest mass after heating

Based on the data shown in the chart, why is copper cookware preferred over aluminum cookware?

• The copper pot would heat faster because it has a lower specific heat value.
• The copper pot would heat faster because it has a higher specific heat value.
• The copper pot would heat slower because it has a lower specific heat value.
• The copper pot would heat slower because it has a higher specific heat value.

What heat transfer process is responsible for water boiling in a pot on the stove?

• Conduction
• Convection
• Radiation