Waves
This type of wave required a medium.
Mechanical
Electrical Energy
KE or PE?
KE
moving electrons
# of protons and electrons
Atomic #
A ________ can be separated or broken into smaller parts.
Mixture
The formula for calculating the speed of an object is
__________ waves have compressions and rarefactions.
Longitudinal
Chemical Energy
KE or PE?
PE
Stored in the bonds
Horizontal rows on the periodic table are called periods. The row the elements is in indicates _________________________.
The number of rings on a Bohr diagram.
Solid--> Gas
sublimation
Away from
Which wave interaction bends as it passes through a medium?
Refraction
Direct contact
In the chemical formula 4 h20, the 4 is called at ___________.
coefficient
Example of Physical Change
crushing
tearing
melting
freezing
Acceleration is measured in the derived units of ________________.
Meters per second squared
Sound travels faster through _____ and slowest through _____
Air
currents
hot air goes up
cool air goes down
FeCl +Br2--> 2FeBr +Cl
How many Fe atoms are in the product?
2
Example of a chemical change
Burning
rusting
combusting
On a speed-time (S-T) graph, a line moving downwards indicates ___________ acceleration.
Negative
(slowing down)
Light travels fastest through ______ and slowest through _______.
Space
Solid
What factors affect kinetic energy?
Mass and Velocity
FeCl + Br2--> 2FeBr +Cl
How many Br atoms in total?
4
State each state of matter and list their particle movement, particle arrangement, and energy.
Solid- packed together, low energy, lowest KE
Liquid- slip & slide past each other, more energy, KE
Gas- spread apart, high energy, highest KE
On a D-T graph, a completely horizontal line indicates that an object is ______
stopped