Astro test 2

Objects will remain in motion, in a straight line and at a constant speed unless acted upon by a force

• any influence that may change the state of motion of objects
• an unbalanced force

• if ourside net forces act upon objects, then objects are accelerated.
• when this happens objects are accelerated in the direction of the net forces.
• inversely proportional to objects inertia

objects mass

total amount of material in an object

• force/mass
• force=mass * acceleration

how gravity affects or accelerates mass.

• remains the same no matter where you travel in the universe
• MASS

• changes depending on where you are.
• weight

the tendency of the object at rest to remain at rest. and of a body in motion in a straight line at a constant speed.

push or pull anything that can cause a body to change velocity.

a physical quantity that indicates both the spped of a body and the direction in which it is moving.

• if an ovject exerts a net force upon another object (action), then the second object exerts a second net force upon the first object (reaction)
• the two forces are equal in magnitude but opposite in direction.
• f1=f2

if an outside net force acts upon an object, the object is accelerated in the direction of the net force