Previously Tested Questions | Complete
Study Resource | A+
• sound energy -✓✓Energy caused by an object's vibrations
• thermal energy -✓✓The total energy of motion in the particles of a
substance
• chemical energy -✓✓A form of potential energy that is stored in
chemical bonds between atoms.
• nuclear energy -✓✓the potential energy stored in the nucleus of an
atom
• electrical energy -✓✓Energy caused by the movement of electrons.
• light energy -✓✓Energy in the form of moving waves of light
• kinetic energy -✓✓energy of motion
• gravitional potential energy -✓✓potential energy that depends on
the height of an object
, • elastic potential energy -✓✓the energy of stretched or compressed
objects
• conservation of energy -✓✓law that says energy cannot be created
or destroyed, but can change forms
• uses of friction -✓✓- rubbing hands for warmth
- break pads on bikes
• Efficiency = -✓✓Useful Energy Output / Total Energy Input
• Increase efficiency -✓✓- add lubricant
- reduce friction
• internal energy -✓✓the sum of the kinetic and potential energies of
all particles in the system
• Conduction -✓✓The direct transfer of heat from one substance to
another substance that it is touching.
• Convection -✓✓The transfer of thermal energy by the circulation or
movement of a liquid or gas