Specific heat , heat and temperature

A measure of the average kinetic energy of the individual particles in an object is called:

• thermal energy
• conduction
• convection
• temperature

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

Which description defines heat?

• total thermal energy of an object or substance

• change in the temperature of a substance in degrees Celsius

• energy transferred between objects at different temperatures

• average kinetic energy of the particles that make up a substance

Tags

NGSS.HS-PS3-4

Water has a specific heat of 4184 J/KgºC.  Wood has a specific heat of 1760 J/KgºC.  What material needs more energy to raise the temperature 1ºC

• Wood
• Water
• Both are the same

A high specific heat means...

• It heats up quickly with energy added
• It requires more energy to change temperature

How many Joules of energy are required to change 10 gram of water from 20 C to 90 C?

• 1400 J
• 2800 J
• 210,000 J
• 1,400,000 J

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-1

What does temperature measure?

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

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

Tags

NGSS.HS-PS3-4

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

• Thermal Energy
• Specific Heat
• Temperature
• Kinetic Energy

What is the equation to measure change in Thermal Energy?

• Q=mc∆t
• Q=mc
• Q= ∆mct
• m=QC

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-1

What is the symbol for Thermal Energy in the specific heat formula?

• Q
• t
• m
• C

Tags

NGSS.HS-PS3-4