ILTS Content Test Elementary Ed(305)-Part 3/6 Practice Questions and Answers

ILTS Content Test Elementary Ed(305)-Part 3/6 Practice Questions and Answers 4 basic laws of thermodynamics - Correct Answer ️️ -zeroth law: states that 2 objects in thermodynamic equilibrium with a 3rd object are also in equilibrium with each other 1st law: states that neither mass nor energy can be destroyed; only converted from 1 form to another(conservation of energy) 2nd law: states that the entropy of an isolated system can only increase; heat is not transferred from low temp system to a higher temp system one unless additional work is done 3rd law: states that as a temperature approaches absolute 0, entropy approaches a constant minimum; system can not be cooled to absolute 0. compare and contrast heat and temperature - Correct Answer ️️ -heat: energy transfer from 1 body or system to another due to thermal contact temperature: measurement of an object's stored heat energy mass - Correct Answer ️️ -measures how much of a substance is in an object weight - Correct Answer ️️ -measures the gravitational pull of the earth on an object density - Correct Answer ️️ -a measure of the amount of mass in a given volume D=m/V volume - Correct Answer ️️ -measures the amount of space taken up specific gravity - Correct Answer ️️ -measures the ratio of a substance's density to the density of water thermal contact - Correct Answer ️️ -energy transferred to a body by a means other than work heat - Correct Answer ️️ -The energy transferred between objects that are at different temperatures Models for the flow of electric charge - Correct Answer ️️ -used to explain the flow of electric current, potential, circuits include water, gravity and roller coasters magnetic field - Correct Answer ️️ -motion of subatomic structures(nuclei and electrons) produce magnetic field; formed not only by magnetic material but also by electric current flowing through a wire magnetic moment - Correct Answer ️️ -The strength of a magnetic field electric charges as they relate to atomic structure - Correct Answer ️️ -electric force: attractive force between the electrons and the nucleus *electrical field: positive or negative charge creates a field of sorts in the empty space around it *electric charge: measured with unit Coulomb(C) is the amount of charge moved in 1 second by a steady current of one ampere(1C=1Ax1s electric current - Correct Answer ️️ -The continuous flow of electric charges through a material rate of flow of electric charge - Correct Answer ️️ -expressed using the ampere(amp or A) and can be measured using an ammeter simple circuit - Correct Answer ️️ -a circuit that has only one pathway for electricity to flow through. example: flow from 1 terminal of a car battery to another magnet - Correct Answer ️️ -a piece of metal, such as iron, steel or magnetite that can affect another substance within its field of force that has like characteristics 2 poles: north and south magnetism - Correct Answer ️️ -The force of attraction or repulsion of magnetic materials magnetic domain - Correct Answer ️️ -occurs when the magnetic fields of atoms are grouped and aligned. These groups form what can be thought of as miniature magnets within a material. This is what happens when an object like an iron nail is temporarily magnetized. Prior to magnetization, the organization of atoms and their various polarities are somewhat random with respect to where the north and south poles are pointing. After magnetization, a significant percentage of the poles are lined up in one direction, which is what causes the magnetic force exerted by the material. motion - Correct Answer ️️ -change in location of an object and is the result of an unbalanced net force acting on the object displacement - Correct Answer ️️ -Distance and directio