9289 Scientific Principles (Energy, Heat and Power Worksheet)

What is the equivalent temperature of 0 Kelvin in degrees Celsius?

• 0°C

• -100°C

• -273°C

• 273°C

Why is an increase in temperature often measured in Kelvin in scientific contexts?

• Because Kelvin is easier to read

• Because Kelvin starts at absolute zero and avoids negative values

• Because Kelvin is used only in the United States

• Because Kelvin increments are different from Celsius

A scientist measures a temperature increase of 100 degrees in both Celsius and Kelvin. What does this indicate about the relationship between these two scales?

• The increments are different

• The increments are the same

• Celsius increases faster than Kelvin

• Kelvin increases faster than Celsius

What temperature is 82ºC in Kelvin?

• 355 Kelvin

• 273 Kelvin

• 192 Kelvin

• 100 Kelvin

What temperature is -50ºC in Kelvin?

• 223 Kelvin

• 273 Kelvin

• 50 Kelvin

• 323 Kelvin

What temperature is 10K in Celsius?

• -263ºC

• -273ºC

• 10ºC

• 0ºC

What is the phase change called when a solid turns into a liquid?

• Freezing

• Melting

• Condensing

• Evaporation

Which process describes the change from a liquid to a gas when heat is applied?

• Freezing

• Condensing

• Evaporation

• Melting

If a gas is cooled, which phase change is most likely to occur first?

• Melting

• Evaporation

• Condensing

• Freezing

Which phase change occurs when a liquid is cooled and becomes a solid?

• Melting

• Freezing

• Evaporation

• Condensing