Question | Answer |
Define potential energy | Energy that is stored |
Which has more potential energy: an object dropped from the 2nd floor or the same object dropped from the 5th floor. | The object dropped from the 5th floor |
Energy in the form of motion is | kinetic energy |
The Law of Conservation of Energy states that energy cannot be ____________or________________,but can be ______________ from one form to another | Created, Destroyed, Converted |
When a match is lit, _____________ energy is converted to ____________ and _____________ energy. | Chemical, Radiant, Thermal |
A light bulb converts ______________ energy into ___________ and __________ energy. | Electrical, Radiant, Thermal |
Define work | Work applied through distance |
In order for work to be done, force and distance must be in the _________ direction. | Same |
Define Element | Substance that has one type of atom |
Define Compound | More than one element chemically combined |
Define Mixture | Compound of 2 or more substances that can be separated physically |
Define Heterogeneous Mixture | different metirials remain distinct |
Define Homogeneous Mixture | mixture witch is the same through out |
list 3 examples of a chemical change | rust, burning, digestion |
name 3 signs of that a chemical change has occurred | smoke, bubbles, temp. |
the current periodic table is arranged by increasing | atomic number |
the atomic number represents the number of | protons |
two isotopes of an element will have different numbers of ___________ but the same number of ______________ | Neutrons, Protons |