     SPANGLER SCIENCE Physics Measurements           HOME Textbook Online SCIENCE SCHEDULE GRADES & CURRICULUM UNITS OF STUDY  Measurement notes Matter- anything that can take up space.                   Can change properties; solid, liquid, gas.                   water is the only substance that forms naturally in all three states.                   Light and heat are not matter- takes no space. Mass- Masures quantity of matter in an object.                   Mesured by kilograms.  Volume- Space that matter occupies.                        Length x Height x Weight  Motion- Distance moved from original point.                   Distance from relative position.  Momentum- Quantity of motiion.                                            Mass x Velocity  Speed- Rate of change of position.  Amount of distance in time. Distance/ Time  Velocity- Rate of change in position.                   Rate of change of displacement.                  Acceleration- Rate of change of velocity.   Change in motion                                                   V2 - V1 / Time  Inertia- An objects resistance to change  in motion.                   Objects like to stay at rest or motion.                   How easy/hard to change an object’s motion.  Energy- ability to do work or cause change.                   Can transfer but not diminish.                   Kinetic Energy- energy in motion.                   Potential Energy- energy in position.                   Gravitational P.E.- gravity upon                                                                             GPE= 9.8 m/s2  Force- push or pull upon an object. transfering energy to the object to work or change.    FORCE  (CSS 2): A push or pull on an object. Giving the object energy to work or change.             *types: gravity, electromagnetic, nuclear, air pressure, thrust, normal,drag                         + others             *2 components: 1) magnitude/strength 2) direction             *formula: f=m*a   force equals mass times acceleration         a=f/m    m=f/a             *measurement: Newton (N)- 1kg/m/s/s  Energy: ability to do work or cause change.  Work: (physical work) when force makes something move.  application of force.   *Balanced Forces: two or more forces that cancel each other out.                         Does not cause change of object’s motion.  Net force is zero.  *Unbalanced Forces: two or more forces that are not equal.                          Causes the object to accelerate.  Net force is not zero.  *Net Force: sum of forces upon an object (what’s left).                         -Vectors: arrow to show force and amount of force upon object by                                                 Newton’s  Friction: A force that slows motion, or prevent motion.                         An unbalanced force.                         A rubbing between two surfaces creating a resistance to the object in                         motion.             Types of Friction: static,  sliding,  rolling, air resistance       W. T. EICH INTERMEDIATE