science

• Atomic number


  Protons = Electrons
• Atomic mass


  Atomic number + Neutrons
• Compound


  2 or more elements bonded
• Molecule of elements


  Different groups, same elements but bonded
• Mixture


  Nothing is bonded except for individuals
• Speed


  Distance and time
• Acceleration


  Change in speed and change in direction
• Velocity


  Speed and direction (distance, time and direction)
• Newton's laws


  • Inertia
  • F=ma
  • Equal and opposite force pairs
• Inertia


  A body either remains at rest or continues to move at a consistent velocity unless acted upon by a net external force
• Inertia


  • It's difficult to move something heavy but it is easy to move something light
• Force (F=ma)


  The vector sum of the external forces (f) on an object equal to the mass (m) of that object multiplied by the acceleration vector (a) of that object
• A body accelerates in the direction of the direction of the sum of the forces applied to it
• The mass of the object determines how much acceleration is felt
• Equal and opposite force pairs


  When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body
• Energy forms


  • Kinetic
  • Potential
  • Mechanical
  • Chemical
  • Thermal
  • Electrical
  • Radiant or electromagnetic
  • Nuclear
• Energy


  The ability to do work or cause change, does not have mass or take up space, only visible through matter
• Kinetic energy


  Energy presently performing work
• Potential energy


  Stored energy, not presently performing work
• Mechanical energy


  Kinetic mechanical: energy of motion of large objects, Potential mechanical: energy stored in large objects or a mass of particles (because of position)
• Chemical energy


  Energy stored in the bonds between atoms, such as ionic or covalent bonds
• Thermal energy


  Energy of vibrational motion in atoms and molecules, measured as temperature (above absolute zero), most energy transformation processes eventually produce thermal energy as their final form
• Electrical energy


  Energy found in charged particles (protons (+) or electrons (-))
• Radiant or electromagnetic energy


  Only form that doesn't need matter to be transmitted, can only be kinetic
• Nuclear energy


  Energy stored in the nucleus of atoms released either in nuclear fusion (fusing two nuclei into one nucleus) or fission (breaking one nucleus into two nuclei)
• The law of conservation states that energy cannot be destroyed but only transformed (converted) into different forms
• Plate boundaries


  • Convergent
  • Divergent
  • Transform
• Convergent


  Towards each other, form mountains, subduction = one goes under (submerges)
• Divergent


  Divide, form rift valleys, form ocean ridges
• Transform


  One above and one under, form earthquakes
• Summer


  Falls into winter
• Winter


  Springs into summer
• Prokaryotes


  No nucleus
• Plant cell


  • Cell wall, has chloroplast, large volecule
• Animal cells


  • Numerous small molecules, circular, non-rigid shape
• Universe


  • Galaxy
  • Nebula
  • Stars
  • Planets
• Sun


  Average, medium size, main sequence, yellow