What every student should learn about Physical Sciences What is everything made of? (How do particles combine to form the variety of substances one observes?) Why do things happen? – What force caused that action? ( How can one predict an object’s continued motion, changes in motion, or stability?) What is energy? ( How is energy transferred between objects or systems?)
Is it Matter, Energy or a Force?
Particle Nature of Matter 2 nd grade5 th grade Matter is Matter is visible Solids and or too small to Liquidsbe seen and includes Air (gases) Matter is conserved.
Particle Nature of Matter 8 th HS Matter is 100+Sub-atomic particles Elements combinedPeriodic Table In different ways Nuclear processes Mixtures, Compounds Atoms
Why Do things happen? What force cause that action? Contact ForcesForce at a distance CollisionsGravity FrictionMagnetism TensionElectrostatic Normal (material)
Newton’s Laws Describe Motion 2 nd 5th Forces are:Forces include: PushesContact Forces Pulls pushespullscollisions CollisionsForces at a Distance gravitymagnetism Forces can be measured
Newton’s Laws Describe Motion 8 th HS Forces are:Motion is described by Balanced Newton’s Laws Unbalanced and cause Accurate predictions of Motionforces and motion can be Stabilitymade mathematically.
Energy is not a thing! Energy makes Particles move & Collide Forms of EnergyEnergy Transfer Conservation Motionmotion-motionnever destroyed! Heat Energy Transformation Light form – different form Sound Electrical Chemical
Energy = Motion 2 nd 5 th Energy is:Energy is transferred Heat LightEnergy is transformed Sound MotionEnergy changes matter (chemicals/food)
E= MC 2 8 th HS Forces transferEnergy can be measured Energy Energy at the atomic level Energy is Conserved Kinetic=motion Potential = stored