States of Matter
What are the 3 states of Matter?
Solid, Liquid, and Gas
What are the 3 types of thermal energy?
Conduction, Convection, Radiation
Which of the following is NOT a phase change?
Melting, Evaporation, Dissolving, Condensation
Dissolving: This is a process where a substance (solute) is dispersed within another substance (solvent) to form a solution. It's a change in mixture, not a change in phase. lving
In which direction does heat move?
Hot to cold
If I have a 4 Beakers that have the same mass of 5 kg, but each has different temperatures. Which beaker has more thermal energy?
The beaker that has the highest temperature
Which of the following is NOT a state of matter? Solid, Liquid, Gas, Temperature
Temperature
As the temperature of a material increase, the average ____ of its particles increases.
Kinetic Energy (speed)
What is the inverse of condensation?
Evaporation
What is an insulator?
An insulator is a material that does not easily conduct heat or electricity.
What are the 6 phase changes ?
Freezing, Melting, Evaporation, Condensation, Sublimation, Deposition.
Which of the following best describes the particles in a gas?
A. Tightly packed and move randomly
B. Loosely packed and move randomly
C. Tightly packed and vibrate in place
D. Tightly packed and move in straight line.
B. Loosely packed and move randomly
What is not a method of heat transfer?
Insulator
Condensation is the process of a gas turning into a liquid. True or False
True
If I am holding a hot cup, in which was is the heat being transferred?
Heat is transferred directly from the hot cup to your hand through contact. From the cup to my hands.
What is the definition of energy?
The ability to do work.
What state of matter takes up the shape of a cup?
Liquid
Which has more thermal energy? A 5kg bowling ball was resting on hot driveway for 4 hours on a day when it was 35 degree C or the same bowling ball rolling down the lane in an air-conditioned bowling alley?
The 5kg bowing ball resting on the hot driveway
Which phase change requires the addition of heat? Freezing, Melting, Condensation, Deposition
Melting
Heat is the transfer of thermal energy from a hotter temperature to a cooler temperature
Which best describes why a liquid needs a container when a solid does not?
A. Solids fill their containers, and liquids have definite shapes.
B. Solids have definite shapes, and liquids fill their containers.
C. Solids particles do not expand to fill their containers, and liquid particles do.
D. Solids particles expand to fill their containers, and liquid particles do not.
B. Solids have definite shapes, and liquids fill their containers.
What are the definitions of Conduction, Convection, and Radiation?
Conduction: This is the transfer of heat through direct contact. It occurs when objects or particles touch.
Convection: This is the transfer of heat through a fluid (liquid or gas) by the movement of the fluid itself. Warmer, less dense portions rise, while cooler, denser portions sink, creating circular currents.
Radiation: This is the transfer of heat through electromagnetic waves. It can happen through empty space and doesn't require a medium (like a liquid or gas).
What is the process called when a solid turns directly to a gas? Sublimation, Deposition, Condensation, Evaporation.
Sublimation: This is the process where a solid changes directly into a gas without passing through the liquid state.
The transfer of heat in liquids or gases through circular like movement of particles is known as: Conduction, radiation, convection
Convection- This is the transfer of heat through a fluid (liquid or gas) by the movement of the fluid itself. Warmer, less dense portions rise, while cooler, denser portions sink, creating circular currents. This is the primary way heat is transferred in liquids and gases.
How do you convert degrees C to degrees K?
Take the Celsius temperature and add 273.15 to it.