Kalor Quiz

What is heat considered to be?

• A form of matter

• A type of force

• A form of energy

• A unit of temperature

Which instrument is used to measure heat?

• Thermometer

• Barometer

• Calorimeter

• Hydrometer

What are the standard units for measuring heat?

• Kilogram and Meter

• Joule and Calorie

• Second and Ampere

• Volt and Ohm

What is the correct formula for specific heat (c)?

• c = m * Q * ΔT

• c = Q / (m * ΔT)

• c = m * ΔT / Q

• c = Q * ΔT / m

An iron bar with a mass of 5 kg is heated, increasing its temperature by 10K. If the heat required is 20 kJ, what is the specific heat of the iron?

• 200 J/Kg.K

• 400 J/Kg.K

• 500 J/Kg.K

• 2000 J/Kg.K

What is the heat capacity of an iron bar with a mass of 5 kg and a specific heat of 400 J/Kg.K?

• 50 J/K

• 400 J/K

• 2000 J/K

• 20000 J/K

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An iron bar with a mass of 450 grams is heated from 20°C to 30°C. What is the mass of the iron bar in kilograms and the change in temperature?

• 0.45 kg and 10°C

• 4.5 kg and 10°C

• 0.45 kg and 50°C

• 4.5 kg and 50°C

How much heat is required to warm an iron bar with a mass of 450 grams from 20°C to 30°C, given that the specific heat of iron is 450 J/Kg°C?

• 2025 J

• 2205 J

• 4500 J

• 450 J

What is the change in temperature (ΔT) of the water?

• 10°C

• 20°C

• 30°C

• 50°C