2nd week Flashcards
It states that an object in motion tends to stay in motion unless an external
force acts upon it.
Similarly, if the object is at rest, it will remain at rest unless an unbalanced force acts upon it.
Law of Inertia
It states that when a force acts on an object, it will cause the object to accelerate.
Law of Acceleration
The larger the mass of the object, the greater the force needed to cause it to accelerate.
Law of Acceleration
It states that for every action, there is an equal and opposite reaction.
Law of Interaction
In physics, it is defined as a force causing the movement—or displacement—of an object.
Work
In the case of a constant force, it is the product of the force acting on an object and the displacement caused by that force.
work
can be defined as the product of the force and the displacement.
Work
what is the formula for work?
w=fd
(force)(displacement)
The Sl unit for work is _____ (_)named after the English physicist, James Prescott Joule
Joule
is the rate at which work is done.
Power
You can determine the ___ of a machine by dividing the amount of work done by the time it takes in seconds.
power
The Sl unit of power is watt, named after a Scottish inventor, _______.
James Watt
whatis the SI UNIT FOR POWER
watt
is the rate of Joules used per second
Power
formula for power
P = W/t
P= power (watts)
W= work (Joules) t= time (seconds)
