PHYSICS TEST 2 Flashcards
what is newtons 1st law of motion
An object maintains its state of motion unless acted on by an unbalanced force.
what is newtons 2nd law of motion
the accelaration of an object is proportional to its force and inversly proportional to its mass
what is newtons 3rd law of motion
for any reaction there is an equal but opposite reaction
what is work?
Work is the measure of energy transfer that occurs when a force is applied to an object, causing its displacement in the direction of the force.
how are work and energy the same thing
the amount of energy spent= the amount of work done
what is energy
the ability to do work, which is the ablity to exert a force causing displacement of an object
what is power
the rate that work is done meaning how much work is done per time
what is kinetic energy
the energy an object has during its motion
what is potential energy
the energy an object posseses as a result of its position or state
what unit is power measured in
watts (W)
what unit is work and energy measured in
Joules (J)
