Ability to do work ___________________ ___________________________ occurs when a force causes an object to move in the direction of the force _______________________________.

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Presentation transcript:

Ability to do work ___________________ ___________________________ occurs when a force causes an object to move in the direction of the force _______________________________

Work = ____________ x _________ When work is done _______________ is given by 1 object to another

Work & energy units _________________ 1 J = amount of energy to lift an apple 1 m Average serve of tennis ball = 75 J of KE Fastball pitch = 120J of KE Football pass = 150J of KE Energy of motion ___________________

KE = mv 2 2 _______________ has a greater effect on kinetic energy than _____________ KE of a snail (mass 5g) traveling at m/s J KE of an 18-wheel truck traveling at m/s 2,200,000 J

Energy of an object due to its position or shape ______________________________ _________________potential energy (GPE) is work done on an object when opposing the force of gravity; work done on an object to lift it to a given height

GPE depends on ________________ & ____________ GPE = weight x height Units (N x m ) = ___________

PE of a stretched bungee or a stretched rubber band _____________________

Total energy of motion and position ____________________________ Can be ____, ____, or _______ ME = PE + KE

Forms of energy ________________________ _________________________

Thermal Total energy of particles in an object More energy if ________________________ _________________________

Chemical Work done to form compound is stored in chemical bonds between _________ Form of __________________energy __________ consists of chemical compounds

Electrical Energy of _________________________ Electrical energy of moving electrons is used to __________________________ Form of _____________________energy

Sound Cause by an object’s _________________ which transmit ________________ from ______________ to ___________ Form of ___________ & _________ energy

Light Caused by the _____________ of electrically charged particles which transmit _____________________

Nuclear Energy associated with changes in the _______ Produced when ____ nuclei join (ex: hydrogen in sun forms helium can only occur at 100,000,000 o C) Or When ____ nucleus splits (ex: PE stored in uranium)

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