Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
|
Thermal energy |
total energy of the particles in a material |
|
|
Heat |
is the thermal energy that flows from something of a higher temperature to something of a lower temperature. |
|
|
Heat-volume relationship |
Less heat = less volume |
|
|
Heat-density relationship |
Volume increase = less dense |
|
|
Joule (J) |
SI unit for heat |
|
|
4.184 J |
1 cal |
|
|
Conduction |
flow of heat by transfer of energy between particles. |
|
|
Convection |
warmer less dense material rises and is replaced by cooler, more dense material. It then becomes heated and rises creating a current |
|
|
Radiation |
involves the transfer of heat through the air or a vacuum |
|
|
Latent heat |
heat required to convert a solid into a liquid or vapor, or a liquid into a vapor, without change of temperature |
|
|
Heat of vaporization |
amount of energy necessary to change a liquid to a vapour at constant temperature and pressure. |
|
|
Heat of fusion |
energy required to melt a solid to a liquid. |
|
|
Heat of sublimation |
energy necessary to change a solid directly to a vapour, these changes also taking place under conditions of constant temperature and pressure. |
|
|
Specific heat of a substance |
the energy required to change the temperature of 1 kg of a substance by 1oC. |
|
|
Calculation of specific heat |
|
|
|
Magnetism |
one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects |
|
|
Magnetism |
phenomenon associated with magnetic fields, which arise from the motion of electric charges. This motion can take many forms. It can be an electric current in a conductor or charged particles moving through space, or it can be the motion of an electron in an atomic orbital. |
|
|
Magnetism |
associated with elementary particles, such as the electron, that have a property called spin. |
|
|
Magnetic fields |
generated by rotating electric charges. |
|
|
Pauli Exclusion principle |
states that two electrons cannot occupy the same energy state at the same time |
|
|
Magnetic materials |
composed of groups of tiny magnets at a molecular level around the atoms, |
|
|
Ferrimagnetic materials |
include ferrites and the oldest magnetic materials magnetite and lodestone, |
|
|
Ferromagnetic materials |
Similar to ferrimagnetic materials but stronger |
