Energy
The energy of matter in motion
Kinetic Energy
Changes form/appearance but does not have a different substance
Physical Change
Formula for density
mass/volume
Measure of the force of gravity on an object
weight
Matter is not created or destroyed in any change in matter
Law of conservation of mass
Internal energy stored in chemical bonds between atoms
Chemical Energy
Occurs when energy is added or removed
Both physical and chemical
System of units scientists use to measure properties of matter
SI Units
Together in the same place but not chemically combined
Mixture
Anything that has mass and takes up space
Matter
Travels through space as waves
Electromagnetic Energy
A new substance is produced
Chemical change
Ratio of atoms in carbon dioxide
1 carbon, 2 oxygen
When atoms combine, force of attraction that holds them together
chemical bond
Energy is absorbed
Endothermic change
Potential Energy
Freezing water
Physical Change
How many atoms of hydrogen are in a water molecule?
2
Amount of space matter occupies
volume
Average energy of motion of particles of matter
Temperature
Energy of electrically charged particles moving from one place to another
Electrical Energy
Rusting metal
Chemical
SI Unit for mass
kilogram
Pure substance that cannot be broken down into any other substances by chemical or physical means
element
A salad would be an example of this
Heterogenous mixture