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36 Cards in this Set

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  • Back
symbol for acceleration due to gravity
g
momentum changes if..
VELOCITY or MASS CHANGE
unit for acceleration due to gravity
m/s/s or m/s2
an object at rest stays at rest unless acted upon by a net force
NEWTON'S FIRST LAW
an object traveling at a constant velocity will continue at that velocity unless acted upon by a net force
NEWTON'S FIRST LAW
a force that acts in the opposite direction to the motion of a falling object
AIR RESISTANCE
a force that acts in the opposite direction to the motion of an object
FRICTION
friction caused by the air
AIR RESISTANCE
another way to write N
kg.m/s2
symbol for momentum
p
unit for momentum
kg.m/s
two forces acting in opposite directions with equal strengths
ACTION-REACTION PAIRS or BALANCED FORCES
the largest velocity able to be reached by a falling object
TERMINAL VELOCITY
unit for force
N or kg.m/s2
symbol for force
F
symbol for weight
w
unit for weight
N or kg.m/s2
weight is a special example of ...
FORCE
gravity is a special example of ...
ACCELERATION
resistance to change in motion
INERTIA
inertia is equal to...
MASS
symbol for mass
m
unit for mass
kg
unit for momentum
kg.m/s
equation for momentum
p = m x v
occurs when air resistance equals gravity and the object no longer accelerates
TERMINAL VELOCITY
falling objects accelerate due to...
NET FORCES
equation for weight
w = m x g
equation for force
F = m x a
when one object exerts a force on a second object, and the second objects exerts and equal and opposite force back on the first
NEWTON'S THIRD LAW
every action has an equal and opposite reaction
NEWTON'S THIRD LAW
F = m x a
NEWTON'S SECOND LAW
Earth's acceleration due to gravity
9.8 m/s/s
force caused by gravitation attraction between Earth and an object
WEIGHT
another word for action-reaction pairs
BALANCED FORCES
which changes on the Moon, mass or weight?
WEIGHT