Question

evaluate-exit ticket ( you may use your notes)

1. what units of temperature are used to measure the following:

● record temperature of the hottest day since 1959
● the temperature at which water boils

1. which has more thermal energy, the cup of a hot liquid or the iceberg? justify your response using academic language. (hint: answer the first part of the question. define thermal equilibrium. identify which object has more thermal energy, restate your claim)

Explanation:

Step1: Identify temperature units

Common units are Celsius ($^{\circ}C$), Fahrenheit ($^{\circ}F$), Kelvin (K). For daily - temperature records and water - boiling point, Celsius or Fahrenheit are common.

Step2: Answer question 1

Record temperature: $^{\circ}C$ or $^{\circ}F$. Water - boiling point: $^{\circ}C$ (100$^{\circ}C$ at standard pressure).

Step3: Define thermal energy

Thermal energy is the total kinetic energy of the particles in a substance.

Step4: Compare thermal energy

The iceberg has more thermal energy as it has a much larger mass, even though its temperature is lower.

Answer:

1. Record temperature: $^{\circ}C$ or $^{\circ}F$; Water - boiling point: $^{\circ}C$
2. The iceberg has more thermal energy. It has a much larger mass, so despite its lower temperature, its total kinetic energy of particles (thermal energy) is greater.