Specific Heat and Heat Transfer Problems

Which direction will the heat flow while this person holds a hot cup of tea?

• from the cup to her hand
• from her hand to the cup
• no heat is transferred

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

The symbol for specific heat is .......

• c
• Q
• m
• t

What is the formula to calculate heat energy required to raise the temperature of any substance?

• Q=mc∆t

• Q=mc

• Q= ½mv

• m=QC

A material was cooled from 100ºC to 40ºC.  What is the temperature change?

• 60ºC
• 40ºC
• -60ºC
• -40ºC

What does temperature measure?

• Heat
• ºC
• Kinetic Energy
• Thermal Energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is Specific Heat?

• The amount of thermal energy required to increase the temperature of 1 g of a material by 1 degree Celsius.

• The amount of radiant energy required to increase the temperature of 1 g of a material by 1 degree Fahrenheit.

• The amount of energy required to increase the temperature of 1 kg of a material by 1 degree Kelvin.

• The amount of friction required to increase the temperature of 1 kg of a material by 1 degree.

Using the heat equation, what would the formula look like if we were solving for change in temperature?

• Q m=∆T c

• Q/mc= ∆T

• Qm/c=∆T

• mcQ=∆T

In an endothermic reaction the system is releasing energy.

• True
• False

In an exothermic process, the surroundings are gaining energy.

• True

• False

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

The unit(s) for heat are?

• calories
• joules
• calories or joules

Tags

NGSS.HS-PS3-4