Radioactivity
This type of radiation can be stopped by a sheet of paper.
What is an alpha particle?
momentum=
What is mass times velocity?
This type of heat transfer is fastest in a vacuum, and doesn't even need a medium at all!
What is Radiation
A solid solution of a metal and one or more other elements
Examples: brass, bronze, steel
What is an alloy?
These must be worn over your eyes any time chemicals, heat, or glassware are used.
What are safety goggles?
This type of radioactive decay converts a neutron to a proton and increases the atomic number of the element by one.
What is beta decay?
If an object has negative acceleration, it is doing this.
What is slowing down?
This is the measure of the average kinetic energy of the particles in an object.
What is temperature?
These elements have a full valence (outer) shell of electrons
What are noble gasses?
The number of milligrams in a gram
What is 1000?
The particles released in radioactive decay come from this part of the atom.
What is the nucleus?
You can change velocity by changing these two things
What are speed and direction
In this type of heat transfer, warm fluids rise and cool fluids sink.
What is convection?
These elements are located on the left side of the periodic table, and are generally good conductors of heat and electricity.
What are metals?
When converting units, your conversion factor should be a ratio equal to this number
What is one?
Nuclear ______________ in the sun is the ultimate source of most energy on Earth.
What is fusion?
Change in velocity
What is acceleration?
This property makes water useful as a coolant.
What is high heat capacity?
Elements in the same _______________ of the periodic table have similar chemical properties.
What is group or column?
Velocity is a vector, which means it has both magnitude and _________________.
What is direction?
In a nuclear reactor, U-235 undergoes _______________ to produce daughter nuclei and energy.
What is fission?
This type of radioactive decay does not change the identity of the element
What is gamma decay?
Heat spontaneously flows in this direction
What is from warm to cooler
Two objects both in thermal equilibrium with a third object other are in thermal equilibrium with ___________________?
What is "each other"?
Transfer of energy by collisions between more and less energetic particles
What is conduction?