States of Matter
What are the four most common states of matter?
Solid, Liquid, Gas, Plasma
Which phase change is gas to liquid?
Condensation
What tool is used to measure temperature?
Thermometer
Heat is transferred in which direction?
From hotter objects to colder ones
What type of heat transfer uses the contact of molecules to increase the temperature of a substance?
Conduction
What happens to the speed and location of particles of a substance as they go from solid to liquid?
Increase speed and move farther apart
What are the melting point, freezing point and boiling points of water?
0 degrees Celsius, 0 degrees Celsius, 100 degrees celsius
What are the three temperature scales
celsius, fahrenheit, kelvin
What are the 2 factors that affect thermal energy?
Temperature and Amount of the Substance
Convection is the heating of a substance through the circulation of
Liquids and Gases
What happens to the density of water when it becomes a solid?
It decreases
When a substance is changing phase, what happens to the temperature of that substance?
It remains constant
What happens to molecules at 0 Kelvin
They stop moving
Which is the most difficult to increase the temperature 1 degree Celsius? Liquid Water, Steam or Ice
Liquid Water
Name three good thermal insulating materials
Rubber, Wood, Plastic, Aluminum Foil, Water, Air, etc..
What two states of matter have no definite shape or volume?
Gas and Plasma
What are two differences between evaporation and boiling?
Evaporation is slower, occurs at lower temperatures, occurs at the surface, causes cooling
Substance A has a temperature of 10 F.
Substance B has a temperature of 0 C.
Substance C has a temperature of 268 K.
Order them from warmest to coldest.
B, C, A
What is the difference between temperature and thermal energy?
Temperature is the average KE and thermal energy is the total KE
Thermal Radiation is which type of EM Wave
Infrared
Why can't Boyle's Law apply to liquids or solids?
Because their volume can't change
When a solid becomes a gas it is called?
Sublimation
The human body has an average temperature of 98.6 F. What is that temperature in Celsius?
37 C
What is the SI unit for heat?
Calorie
Which of these objects do not radiate EM waves:
Sun, Ice Cube, Flashlight, Human Being
None of them