Matter
What is matter?
Matter is anything that has mass and takes up space.
What is a pure substance?
A pure substance has the same composition throughout and contains only one type of element or compound.
What is Brownian motion?
Brownian motion is the irregular, jerky motion of particles.
What is the Celsius scale? List the boiling temp and freezing temp.
The Celsius scale is a temperature scale where the freezing point of water is 0℃ and the boiling point is 100℃.
What is conduction?
Conduction is the transfer of thermal energy by direct contact between particles of matter.
What is an element?
An element is a pure substance that cannot be broken down into simpler substances.
What is a mixture?
A mixture contains more than one kind of matter and can be separated physically.
What is thermal energy?
Thermal energy is the energy causing particles of matter to move randomly.
What is absolute zero?
Absolute zero is 0 K, the coldest temperature possible, at which all molecular motion stops.
What is convection? Provide example
Convection is the transfer of thermal energy through the circular motion of fluid matter.
What is an atom?
An atom is the smallest particle of an element that retains the chemical identity of that element.
What is a homogeneous mixture? Provide an example with your response.
A homogeneous mixture appears the same throughout and substances are evenly distributed.
What is temperature?
Temperature is a measure of the average thermal energy of the particles in a sample of matter.
What is the boiling point of water in Fahrenheit?
The boiling point of water in Fahrenheit is 212°F.
What is radiation? Provide example.
Radiation is thermal energy released by particles of matter as they move, even without direct contact.
What is a molecule?
A molecule is two or more atoms chemically bonded together.
What is a heterogeneous mixture? Provide and example with your response.
A heterogeneous mixture usually does not appear uniform throughout, and substances are not evenly distributed.
What is thermal equilibrium?
Thermal equilibrium occurs when all particles have the same average thermal energy, resulting in no net change in thermal energy.
What is the freezing point of water in Fahrenheit?
The freezing point of water in Fahrenheit is 32°F.
What is an example of conduction?
An example of conduction is touching the coil or glass of a hot stove burner.
What is a compound? Provide an example with your explanation.
A compound is two or more different elements chemically combined.
What is the Tyndall effect?
The Tyndall effect is the scattering of light by tiny suspended particles.
What is heat transfer?
Heat transfer refers to thermal energy being transferred from one system to another.
What is the Kelvin scale?
The Kelvin scale is an absolute temperature scale used in science. (Normally describes very cold temps)
What are the three methods of heat transfer?
The three methods of heat transfer are conduction, convection, and radiation.