Specific heat quiz

How does heat (thermal energy) flow?

• Always from cold to warm

• Always from warm to cold

• Both warm to cold & cold to warm

• It depends on the temperature

What is the equation for specific heat capacity?

• Q=mc∆t

• Q=mc

• Q= ∆mct

• m=QC

There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?

• Large cup

• Small cup

• Medium cup

• All three are the same temperature so they have the same thermal energy

Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using 10,000 JOULES of thermal energy. Using the chart, which material would have the LARGEST change in temperature and heat up the fastest?

• Copper

• Carbon Steel

• Zinc

• Stainless Steel

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°?

• 105 J
• 10.5 J
• 1.05 J
• 50 J

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?

• 12.82 °C
• 24.12°C
• 351 °C

The temperature of an unknown piece of metal with a mass of 30.00 g changes from 25.0 °C to 35.0 °C when the metal absorbs 350.0 J of energy. What is the specific heat of the metal?

• 1.17 J/g°C
• -1.17 J/g°C
• 0.857 J/g°C
• -0.857 J/g°C

What is the symbol for Thermal Energy?

• Q
• T
• m
• Cp

What unit do you use to measure Thermal Energy?

• J/Kg ºC
• Kg
• ºC
• J

A high specific heat means...

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