Mr. K Physics Ch 9 - Heat

True or False: Adding or removing energy changes temperature.

• True

• False

• Maybe

What is temperature?

• A measure of the average kinetic energy of bacteria in a substance

• A measure of the average kinetic energy of the particles of a substance

• A measure of the kinetic energy of the particles of a substance

• A measure of the average potential energy of the particles of a substance

Which of the following is true about temperature?

• Temperature is proportional to the kinetic energy of atoms, but not molecules

• Temperature is perpendicular to the kinetic energy of atoms and molecules

• Temperature is proportional to the kinetic energy of atoms and molecules

• Temperature is not proportional to the kinetic energy of atoms or molecules

What is internal energy?

• The energy a substance has due to gravity

• The energy a substance has due to only the potential energy an object has

• The energy a substance has due to only the kinetic energy it has

• The energy a substance has due to the motion and position of the particles

What is thermal equilibrium?

• The state in which two bodies in physical contact with each other have identical temperatures

• The state in which two bodies with no physical contact have identical temperatures

• The state in which two bodies in physical contact with each other have different temperatures

• The state in which two bodies physical contact with each other have similar, but not identical, temperatures

Temperature must be measured with a thermometer when:

• they have the same mass

• thermal equilibrium is reached

• absolute zero is reached

• it is 100º C

Matter expands as its temperature:

• increases

• decreases

• inverses

• goes to absolute zero

What is the ice point of water?

• 0º C

• 32º F

• 273.15 K

• All of these

What is the boiling point of water?

• 100º C

• 273.15 K

• 100º F

• All of these

The measuring system used by most countries and the science community worldwide is ​ ​ (a)  

• Celsius
• Fahrenheit
• Kelvin
• holding your arms out