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energy, force and motion, simple machines
Term | Definition |
---|---|
NEWTON'S 1ST LAW OF MOTION | OBJECTS AT REST STAY AT REST, OBJECTS IN MOTION STAY IN MOTION, UNLESS ACTED ON BY OUTSIDE FORCE |
NEWTON'S 2ND LAW OF MOTION | FORCE = MASS X ACCELERATION |
NEWTON'S 3RD LAW OF MOTION | FOR EVERY ACTION THERE IS AN EQUAL AND OPPOSITE REACTION |
UNBALANCED FORCE | WHEN FORCES ACTING ON AN OBJECT ARE NOT EQUAL |
NET FORCE | THE TOTAL FORCE ACTING ON AN OBJECT |
SPEED | DISTANCE DIVIDED BY TIME |
GRAVITY | A FORCE THAT PULLS OBJECTS TOGETHER |
BALANCED FORCE | WHEN OPPOSING FORCES ACTING ON AN OBJECT ARE EQUAL |
FRICTION | FORCE CAUSED BY RUBBING OBJECTS TOGETHER |
KINETIC | ENERGY OF MOTION OR MOVING THINGS |
POTENTIAL | STORED ENERGY |
ELECTRICAL | ENERGY MADE BY THE FLOW OF ELECTRONS |
LAW OF CONSERVATION OF ENERGY | ENERGY IS NOT CREATED OR DESTROYED, ONLY TRANSFERRED OR CONVERTED |
ELECTRIC FAN | CONVERTS ELECTRICAL ENERGY TO MECHANICAL ENERGY |
PHOTOSYNTHESIS | CONVERTS SOLAR ENERGY TO CHEMICAL ENERGY |
GEOTHERMAL ENERGY | MADE FROM STEAM FROM THE EARTH AS HEAT |
RENEWABLE | ENERGY THAT IS EASILY REPLACED OR READILY AVAILABLE |
NON RENEWABLE | ENERGY NOT EASILY REPLACED. TAKES 1000'S OF YEARS TO REPLACE |
URANIUM | RADIOACTIVE ELEMENT THAT IS USED TO MAKE NUCLEAR ENERGY |
COMPOUND | 2 OR MORE ELEMENTS COMBINED CHEMICALLY. NEW SUBSTANCE IS FORMED |
RUSTING NAIL | EXAMPLE OF A CHEMICAL CHANGE |
RIPPING PAPER | EXAMPLE OF A PHYSICAL CHANGE |
BAKING CAKE | EXAMPLE, CHEM CHANGE |
BOILING WATER | EXAMPLE, PHYSICAL CHANGE |
GOOD HEAT CONDUCTOR | METALS PROPERTIES |
BRITTLE | NON METALS PROPERTIES |
POOR ELECTRICAL CONDUCTOR | NON METALS PROPERTY |
METALLOIDS | CHARACTERISTICS OF BOTH METALS AND NON METALS |
NITROGEN | GAS(ELEMENT) THAT MAKES UP MOST OF EARTH'S ATMOSPHERE |
MIXTURE | COMBINING 2 OR MORE SUBSTANCES. NO NEW SUBSTANCE IS MADE. NOT CHEMICALLY COMBINED |
WATER | H2O (HYDROGEN AND OXYGEN) |
PERIODIC TABLE | ARRANGES ELEMENTS BY CHARACTERISTICS |
VELOCITY | DISTANCE DIVIDED BY TIME, PLUS DIRECTION |
HYDROELECTRIC | USING FLOWING WATER TO TURN TURBINES |
COMPOUND MACHINE | MACHINE CONSISTING OF 2 OR MORE SIMPLE MACHINES |
PULLEY | SIMPLE MACHINE WITH A ROPE OR CORD WRAPPED AROUND A GROOVED WHEEL |
LEVER | A SHOVEL OR HAMMER HANDLE IS AN EXAMPLE OF THIS SIMPLE MACHINE |
FULCRUM | PART OF A LEVER, BUT NOT A SIMPLE MACHINE |