physical Science Crossword

one objects distance from another is changing
relation with measurements and judgements are made
distance and direction of an object in position the starting point
how fast an object is moving
an objects speed in a certain direction
a rate of change of velocity
push or pull exerted on an object
the resistance that one surface or object encounters when moving another
friction that acts on an object at rest
friction between moving objects
equal but opposite forces
force that causes an object to start moving
sum of forces acting on an object equal but opposite
an object to resist a chance in motion
an object at rest stays at rest an object in motion stays in motion
how fast an object accelerates or decelerates depends on the force
for every action there is an equal reaction
measurment of gravitys pull on an object
amount of matter in an object
found on earth but not in space
the product of force and distance whenan object is moved
force exerted on a machine by the machine
machines that make your work easier
a device containing 2 or more simple machines
a rigid object that pivots about a fixed point
a wheel with a grooved rim which a cord passes through
a circular object that are fastened together and rotate around a common axis
used to join things together by being rotated
a sloping ramp up which heavy loads can be raised
put between two objects to secure them
a complicated and time consuming design to do one simple thing
the ability to do work
energy can not be created or destroyed
standard measurment
unit for work