Assignment #9 Specific Heat

What does temperature measure?

• Heat of Molecules
• ºC
• Average Kinetic Energy of Molecules
• Thermal Energy

Specific heat is....

• The measure of kinetic energy of an objects particles
• A measure of the energy needed to increase the average kinetic energy of the particles
• The heating caused by the motion of flluid due to temperature difference
• The transfer of energy by electromagnetic radiation

How does heat flow?

• Always from cold to warm
• Always from warm to cold
• Both warm to cold & cold to warm
• It depends on the temperature

The amount of energy required to raise the temperature 1ºC for every kilogram is called____?

• Thermal Energy
• Specific Heat
• Temperature
• Kinetic Energy

A high specific heat means...

• It requires less energy to change temperature
• It requires more energy to change temperature
• It heats up very quickly

Large oceans moderate the climatic temperatures of surrounding coastal land areas because the temperature of ocean water changes

• rapidly, due to water’s low specific heat

• rapidly, due to water’s high specific heat

• slowly, due to water’s low specific heat

• slowly, due to water’s high specific heat

Equal masses of granite, iron, copper, and lead are placed in sunlight. Based on specific heat, which material will warm up the fastest? (ESRT page 1)

• granite

• copper

• iron

• lead

Object A has a specific heat of 4.45 J/g⁰C and object B has a specific heat of 1.82 J/g⁰C. Which object will heat up faster?

• Object A, it has a lower spefici heat
• Object B, it has a lower specific heat
• Object A, it has a higher specific heat
• Object B, it has a higher specific heat

Object X has a specific heat of 2.45 J/g⁰C and object Z has a specific heat of 5.82 J/g⁰C. Which object will heat up slower?

• Object X, it has a lower spefici heat
• Object Z, it has a lower specific heat
• Object X, it has a higher specific heat
• Object Z, it has a higher specific heat

Which has a higher specific heat capacity, water or sand?

• Sand
• Water
• They both have the same specific heat capacity.