Energy- ability to cause change
Kinetic energy- energy an object has due to its motion
Potential energy- energy that is stored due to an object’s position Law of conservation of energy- energy cannot be created or destroyed but can only be transformed from one form into another Temperature- measure of the average kinetic energy of the atoms in an object Heat- transfer of energy from one object to another due to a difference in temperature Conduction- transfer of energy by collisions between the atoms in a material Convection- transfer of heat that occurs when particles move between regions or objects that have different temperatures Radiation- energy that is transferred by waves
Endothermic reaction- chemical reaction that absorbs heat energy Exothermic reaction- chemical reaction that releases heat energy Catalyst- substance that change the rate of a chemical reaction without any permanent change to its own structure
What is energy?
Forms of energy
Compare and contrast potential energy and kinetic energy.
Charging by contact- transfer of electric charge between objects in contact Charging by induction- rearrangement of electric charge in an object due to a nearby electric field Insulator- material in which electric charges cannot move easily Conductor- material in which electric charges can move easily Static charge- imbalance of electric charge on an object
How do electric charges exert forces on each other?
What is an electric field?
How do objects become electrically charged?
Describe how lightning occurs.
Mineral- inorganic, solid material found in nature that always has the same chemical makeup, atoms arranged in an orderly pattern, and properties such as cleavage, fracture, color, hardness, streak and luster. Rock- solid inorganic material that is made up of 2 or more minerals and can be metamorphic, sedimentary or igneous. Crystal- solid material with atoms...