Science Quiz 15 Flashcards
Use the formula for Newton’s Second Law to calculate for force, mass, or acceleration.
Label metrics for F, m, and a
Force= mass x acceleration Force= N(ewtons)
Mass = force/acceleration Mass= kg
Acceleration = force/mass Acceleration= m/s^2
mech
motion and position of objects, sum of potential and kinetic energy (ex. dominoes falling)
radiant
visible light energy (ex. flashlight)
electromagnetic
energy traveling to space in waves (ex. microwaves)
chem
potential energy stored in chemical bonds (ex. combustion of fire)
nuclear
potential energy stored in nuclei of atoms (ex. nuclear bombs)
electrical
energy associated with electrical charges (ex. static electricity)
thermal
kinetic movement of microscopic particles in an object (ex. boiling of water)
Use an element’s information from the periodic table to determine the number of protons, neutrons, and electrons it has
A=P=E (Atomic Number = Protons = Electrons)
M - A = N (Mass Number - Atomic Number = Neutrons)
Chemical Property
any ability to produce a change in the composition of matter
reactivity and flammability
reactivity- how readily a substance combines chemically with other substances
flammability- ability to burn in presence of oxygen
Physical Property
any characteristic that can be observed or measured without changing the composition of the substances in the material
viscosity
viscosity- the resistance to flowing. Hotter=less. Thicker=more.
conductivity
conductivity- object’s ability to permit heat and electricity to flow through (ex. metals)
malleability
malleability- ability of a metal to be hammered into sheets without shattering. Most metals are malleable, but Zinc must be heated for it to get hammered.
hardness
hardness- a material’s resistance to scratching. Harder materials scratch softer ones.
melting and boiling points
melting- transition of matter from solid to liquid, same temperature as freezing
boiling- transition of matter from liquid to gas by boiling
