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What are the four types of friction?
rolling, static, fluid, sliding
amount of space occupied by an object
volume
how do you calculate acceleration?
(final velocity - initial velocity) / time
how do you calculate average speed
the total distance divided by total time
the part of an experiment in which all conditions are kept the same
constant
chemistry is a branch of science that deals with
chemicals
matter
chemical reactions
the complete unbroken path through which electric charges flow
electrical circuit
what must happen for work to be done to an object
the force you exert must be in the same direction as the object's motion
a projectile is
any object thrown or shot through the air that has horizontal and vertical motion
how do you calculate work
work = force x distance
physics concepts include
motion and forces
forms of energy
how energy interacts with matter
the SI unit for temperature
Kelvin
Charges in an alternating current...
move back and forth in a circuit
what is the difference between insulators and conductors?
insulators do not allows charges to move through them (rubber); conductors allows electric charges to move through them easily (metals)
Write .357 in scientific notation
3.57 x 10-1
the ability to do work
energy
mechanical energy into thermal energy
what is the difference between kinetic and potential energy
kinetic energy is energy in motion; potential energy is stored energy
radio converts _______________ waves into sound waves
electromagnetic
force that causes an object to move in a circle
centripetal force
A statement that describes what scientists expect to happen every time under a particular set of conditions
scientific law
used to open and close a circuit
switch
a rocket lifting off the ground and into the atmosphere is an example of Newton's ____ law
3rd
a ramp in a parking garage is an example of a simple machine called
What is ohm's law?
the current is equal to the voltage difference divided by the resistance