QUIZ FOR HEAT AND

TEMPERATURE

Zartiga, Biong, Dapon

Questions

1. Define Temperature.2-3. Temperature

ConversionIf someone says that the

temperature will be 303 K today, how can you express that temperature in °C and °F?

Questions

4-5. The normal temperature of a chickadee is 105.8°F. What is that temperature in °C and K?

Questions

6. Formula of Average Kinetic Energy.7. It is a measure of total kinetic energy

of a system8. How much heat must be added to a

5000g of water to increase its temperature by 20C? The specific heat of water is 1cal/gC.

9. What is Convection? Give an example.10. What is Conduction? Give an example.

Answers

1. Temperature is a measurement of the average kinetic energy of the molecules in an object or system and can be measured with a thermometer or a calorimeter. It is a means of determining the internal energy contained within the system.

Answers

2. To convert from Kelvin to Celsius:TC = TK - 273TC = 303 - 273 TC = 30°C

To convert from Celsius to Fahrenheit:TF = 9/5(TC) + 32TF = 9/5(30) + 32TF = 86°Fs

Temperature Conversion Answer30°C, 86°F

Answers

6. KEave = (3/2) kT

7. Heat8. Given: m = 5kg or 5000g

c = 1 cal/g ⁰C ∆T = 20 ⁰C

Solution: Q = m c ∆T = 5000g x 1 kcal/g ⁰C x 20⁰C = 100000kcal

Answers

9. Convection: the up and down movement of gases, liquids, and semi-solid materials cause by heat-transfer.

Ex.: Imagine a pot of boiling water. 10. Conduction: transfer of heat through

direct contact with one substance to another. 

Ex. You don't want to touch a heated pot on the stove if it's handle is metal--because it too will be heated, and you'll burn yourself. 

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