🎓science final 8th grade🎓

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Terms in this set (47)
Chemical formulaa mathematical relationship or rule expressed in symbols.Electrona stable subatomic particle with a charge of negative electricity,Neutrona subatomic particle of about the same mass as a proton but without an electric charge.Atomic numberThe number of protons in the nucleus of an atomNucleus- Protona stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.Mass numberthe total number of protons and neutrons in the nucleus of an atomIonic compounda chemical compound composed of ions held together by electrostatic forces termed ionic bonding.HeliumHeNitrogenNZincZnHydrogenHLithiumLiCarbonCFluroineFOxygenOSulferSCholrineClPotassiumKMagnesiumMgsliverAgGoldAuAluminumAlSodiumNaMotionThe state in which one object's distance from another is changing.speedThe distance an object travels per unit of timeVelocitySpeed in a given directionaccelerationThe rate at which velocity changesForceA push or pull exerted on an objectNewtona unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second.InertiaThe tendency of an object to resist a change in motionMomentumThe product of an object's mass and velocity.WorkForce exerted on an object that causes it to move.PowerThe rate at which one form of energy is transformed into another.simple machinesThe most basic device for making work easier.EnergyThe ability to do work or cause change.Kinetic energyenergy that an object has due to its motionPotential energyThe energy an object has because of its position; also the internal stored energy of an object, such as energy stored in chemical bonds.