QUIZ K3 - Electricity Heat Rate

One of the objectives of the electrical energy into heat energy is

• determining the equivalence number between Joules and Calories

• Determining the equivalence figure between Watts and Calories

• Demonstrate the relationship between electrical energy and chemical energy

• Demonstrate the relationship between heat energy and water energy

Which of the following is not a tool used in electrical energy into heat energy, namely

• calipers

• scales/balances

• calorimeter

• thermometer

the heat energy generated in this practicum is known through the law of

• Kirchoff's Law

• Laws of Thermodynamics

• Joule’s Law

• Ohm's Law

Which of the following is not an application of the electrical energy into heat energy in daily life is

• iron

• Hair dryer

• electric soldering iron

• thermos

The formula for electrical energy in this practicum is...

• 𝑊 = 𝑉 × 𝐼 × t

• 𝑊 = 𝑚 × 𝑐 × ∆T

• 𝑊 = 𝑄 / ∆T

• 𝑊 = 𝐼 × 𝑅 × V

The formula for the amount of electrical energy converted into heat energy in water and the calorimeter is...

• 𝑃 = 𝑉² / R

• 𝑄 = 𝑚 × 𝑐 × ∆T

• 𝑄 = 𝐼 × 𝑉 × t

• 𝑄 = 𝐼 × 𝑐 × ∆T

the calorimeter stirrer has the function to

• measuring the specific heat of water

• knowing the length of the trial period

• distribute heat evenly in water

• maintaining the stability of electric current

The conversion of electrical energy into heat energy is caused by...

• Water evaporation

• Collisions of charge carriers in metal

• Stirring the water in the calorimeter

• Current changes

the following quantities are used to find the electrical energy into heat energy, except

• mass

• specific heat

• temperature

• pressure

the mass of water in the calorimeter affects

• the electrical voltage generated

• electric current flowing

• the heat required to raised the temperature

• the length of the resistance wire