Temperature and Thermal Energy

What is temperature?

• It is a measure of the average kinetic energy of the particles in the substance.

• It is the kinetic energy.

• It is the total kinetic energy.

What does happen when energy is removed from a substance?

• The substance´s temperature is increased.

• The substance´s temperature is decreased.

• The substance´s temperature remains the same.

• The substance´s temperature duplicates.

If you touch a cup of ice tea and then a cup of hot chocolate wich one has higher amount of kinetic energy?

• The cup of ice tea.

• It is possible to define it only with a thermometer.

• The cup of hot chocolate.

• They have same kinetic energy.

What is the internal energy?

• It is the energy inside a battery.

• It is the energy of a substance due to both the random motions of its particles and to the potential energy that results from the distances and alignments between the particles.

• It is the energy of a substance only due to the random motions of its particles.

• It is the energy of a substance only due to potential energy that results from the distances and alignments between the particles.

What are the forms of energy that compounds the internal energy?

• Translational, Potential and Inertial.

• Potential and Vibrational.

• Translational, Rotational and Vibrational.

• Eletric, Rotational and Inertial.

What is termal equilibrium?

• It is the state in which two bodies without physical contact with each other have different temperatures.

• It is the state in which always only two bodies in physical contact with each other have identical temperatures.

• It is the state in which one body does not move.

• It is the state in which two or more bodies in physical contact with each other have identical temperatures.

What is thermal expansion?

• It is when the volume of a substance increases due to the temperature decreasing.

• It is when the volume of a substance increases due to the temperature increasing.

• It is when an explosion occurs.

Which is the only substance that its volume expands when its temperature is decreased between 4°C and 0°C?

• Chocolate

• Salt

• Water

• Vinegar

A thermometer shows a temperature of 60°F. What is the temperature in Celsius degree?

• 15.55°C

• 32°C

• 15°C

• 60°C