Pre-Test Electricity Heat Rate (K3)

The purpose of the electricity heat rate practicum is...

• To demonstrate the relationship between electrical energy and heat energy

• To understand the relationship between electrical energy and mass

• To calculate the electrical energy produced by the calorimeter

• To determine the amount of electrical energy in calories

The heat energy produced in this practicum is determined through...

• Kirchoff’s Law

• Thermodynamics Law

• Ohm’s Law

• Joule’s Law

The number that represents the amount of electrical energy equivalent to heat energy is called...

• Electric heat capacity

• Electric heat equivalence

• Joule’s Law

• Electricity efficiency

The method used in this practicum involves…

• Potential energy converted into heat

• Kinetic energy converted into electrical energy

• Electrical energy converted into heat energy

• Heat energy absorbed by resistance wire

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

• 𝑊 = 𝑉 × 𝐼 × t

• 𝑊 = 𝑚 × 𝑐 × ∆T

• 𝑊 = 𝑄 / ∆T

• 𝑊 = 𝐼 × 𝑅 × �

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 mass of water in the calorimeter affects...

• The voltage produced

• The current flow

• The heat required to raise the temperature

• The length of the resistance wire

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 function of the calorimeter stirrer is to...

• Measure the specific heat capacity of water

• Determine the duration of the experiment

• Distribute the evenly in the water

• Maintain electrical current stability

Pada praktikum ini, alat yang digunakan untuk menimbang massa adalah...

• Calorimeter

• 2 Ohaus balance

• 3 Ohaus balance

• 4 Ohaus balance