Light
The top of a transverse wave
Crest
Sound waves need this to travel
medium (solid liquid or gas)
positive part of the atom
proton
Energy of Motion
Kinetic
What element is this: Na
Sodium
The bottom of a transverse wave
trough
Sound waves travel fastest in these
solids
all of the mass is found in this part of the atom
nucleus
Energy of Rest
Potential
What are the HORIZONTAL ROWS called
Periods
The weakest radiation
radio waves
The pitch of a sound wave will lower when the wavelength does this...
gets longer
How many maximum electrons can the first energy level have?
2
What kind of energy transfer is a toaster making toast
electrical to thermal
What are the vertical columns called
Families or Groups
Mirror that magnifies the image
concave
What is the change in pitch due to a moving sound source called? (Like a car blowing its horn as it passes you)
Doppler effect
What does the subscripts attached to elements mean?
NH3
The number of hydrogen atoms (3)
Give 2 examples of renewable energy
solar, wind, water
What is the most highly reactive NON METAL FAMILY called?
Halogens
Lense that magnifies the image
convex
Animals do this to navigate with sound
Echolocation
How many different elements are there in the formula H2 +O2 --> H2O
2
Give two examples of non renewable energy
coal, oil, natural gas
What family is the LEAST reactive
Nobel gases