Vocab
This is a small particle that is the building block of matter.
What is an atom.
This is a substance that consists of only one type of atom.
What is an element.
These are the 3 states of matter.
What is a solid, liquid, and gas.
Temperature is the measure of the average kinetic energy of a substance.
What is true.
This is energy due to motion.
What is kinetic energy.
Adding thermal energy to a cup of water can cause particles to do what?
What is move faster, and get farther apart.
This is the change in state from a liquid to a gas.
What is vaporization.
Forces between particles increase as the particles move faster and farther apart.
What is false.
This is stored energy due to the interactions between objects or particles.
What is potential energy.
This is two or more atoms that are held together by covalent bonds and act as a unit.
What is a molecule.
Particle motion in ice is _____ than particle motion in water.
What is slower.
Thermal energy can increase even if the average kinetic energy is constant.
What is true.
This is a substance containing atoms of two or more different elements chemically bonded together.
What is a compound.
This is the transfer of thermal energy from a region of higher temperature to a region of lower temperature.
What is heat.
The molecules in water are farther apart than the molecules in ice. Therefore, the molecules in water have more _______ than the molecules in ice.
What is potential energy.
The sum of the potential energy and the kinetic energy of an object is its thermal energy.
What is false.