Thermal Energy and Temperature: Understanding the Relationship

The video tutorial explains thermal energy, focusing on the relationship between thermal energy, mass, specific heat capacity, and temperature change. It provides two examples: heating water and a copper block, demonstrating how to calculate the energy required and the resulting temperature change using specific heat capacity and power-time equations.

What is thermal energy often referred to as?

• Potential energy

• Nuclear energy

• Heat energy

• Chemical energy

Which equation is used to calculate the change in thermal energy?

• E = mgh

• E = mv²

• E = mcΔθ

• E = mc²

How much energy is required to raise the temperature of 200 grams of water by 18 degrees Celsius?

• 15,120 joules

• 18,000 joules

• 20,000 joules

• 12,000 joules

What is the specific heat capacity of water used in the example?

• 3,800 J/kg°C

• 4,200 J/kg°C

• 4,000 J/kg°C

• 3,500 J/kg°C

What is the temperature change of the copper block when heated by a 50-Watt heater for five minutes?

• 55 degrees Celsius

• 45 degrees Celsius

• 49 degrees Celsius

• 50 degrees Celsius