Thermal Energy Chapter 1 Quest

What is temperature?

• A measure of how hot or cold something is
• A measure of how fast the molecules in a substance are moving
• A measure of how hot and cold something is and the measure of how fast the molecules are moving

• A measure of the number of molecules in a substance

You place food coloring into a cup of hot water and a cup of cold water. In which cup will the food coloring spread out faster?

• The Cold Water
• The Hot Water
• It spread evenly across both waters

What is a molecule?

• a form of energy storage in living organisms
• A group of atoms joined together in a particular way
• A substance always composed of a single type of atom
• A ype of subatomic particle found in the nucleus of an atom.

Which sample has more kinetic energy? How do you know?

• Sample B, The key shows that Sample B has more Kinetic Energy than Sample A
• Sample A, The key shows that Sample A has more Kinetic Energy than Sample B

Which sample is moving faster? How do you know?

• Sample B, because Sample B has more Kinetic Energy
• Sample B, because Sample B has more Potential Energy
• Sample A, because Sample A has more Kinetic Energy
• Sample A, because Sample A has more Potential Energy

Which sample is colder? How do you know?

• Sample B, because Sample B has more Kinetic Energy
• Sample B, because Sample B has less Kinetic Energy
• Sample A, because Sample A has more Kinetic Energy
• Sample A, because Sample A has less Kinetic Energy

What is temperature related to?

• The number of electrons in the atoms of a substance
• The average speed of movement of molecules in a substance

• The shape of an object
• The size of an object

What is absolute zero?

• The temperature at which water freezes
• The temperature at which molecules move at their fastest speed
• The temperature at which there is no molecular movement
• The temperature at which objects start to melt

Can absolute zero be reached?

• Yes, scientists have already reached absolute zero
• No, it is not possible to reach absolute zero
• Yes, but only in space
• No, because molecules never completely stop moving

Where are the coldest temperatures measured?

• Inside a kitchen freezer
• On Earth's surface
• In Space
• At absolute zero