U4 Zone 1: Transfer of Heat

What unit do you use to measure Thermal Energy? (a)  

• J/Kg ºC
• Kg
• ºC
• J

What is the equation to measure change in Thermal Energy? (a)  

• Q=mc∆t
• Q=mc
• Q= ∆mct
• m=QC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How does heat flow? (a)  

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

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

When a  piece of aluminum foil is taken out of the oven and cools from 100° C to 50°C, What is the change in temperature? (a)  

• 50°
• 0°
• 100°
• 150°

Tags

NGSS.MS-PS3-4

The specific heat of aluminum is 0.21 cal/g°C.  How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°? (a)  

• 105 J
• 10.5 J
• 1.05 J
• 50 J

Tags

NGSS.MS-PS3-4

The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams of copper? (a)  

• 12.82 °C
• 24.12°C
• 351 °C

Tags

NGSS.MS-PS1-4

NGSS.MS-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 symbol for Thermal Energy? (a)  

• Q
• t
• m
• C

What is the symbol for Specific Heat (a)  

• Q
• t
• m
• C

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 (a)  

• Wood
• Water
• Both are the same