30 terms

Conceptual Chapter 3 - Newton's First Law

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Philosopher's of the 16th century believed the Earth was at rest because...
There wasn't a force large enough to move it
The force created by two surfaces rubbing against each other
friction
Ancient Greeks believed that objects natural motion was
straight up and down
The SI unit of mass
kilogram
While traveling in a car and tossing a ball, this appears to a person in the car to be...
the same as if they were tossing it straight up and down at rest
If a roller coaster were to travel down an incline from a height of 30 meters
it could roll up an adjacent incline to a height of 30 meters
One kilogram of mass
about 2.2 pounds of force at sea level
Two objects of the same mass have the same weight when
they are in the same location
Galileo's experiment demonstrating inertia involved changing...
the slope of the inclines from which he rolled
An object in this location would continue moving without having to apply any more force due to the lack of friction and drag
outer space
an object that is difficult to move has a lot of...
mass
Weight is a measure of...
force
Ancient philosophers believe all large objects would...
fall straight down
Aristotle described motion in the vertical direction as...
natural motion
for an object to retain its state of motion it must...
maintain both its speed and direction
Ancients viewed a bird being able to fly straight downward as evidence that...
the earth was not moving
Aristotle described motion caused by an outside force as...
violent motion
The idea of inertia is credited to...
Galileo
Galileo believe a ball rolling along a perfect friction-less surface would roll
forever
Mass is directly related to...
inertia
Newton stated that an object could change its state of motion is acted on by...
a nonzero net force
The first to believe in the sun centered solar system was...
Copernicus
inertia is...
an objects resistance to changing its state of motion
Mass and inertia can also can describe...
the laziness of an object
A mass spinning on a string that suddenly snaps will move...
in a straight line with the same speed from the point at which the string broke
The inertia of one's head in a car accident causes this common injury
whiplash
Knocking out the bottom block from a stack would result in the remaining blocks to...
fall in the same place as they were
an object is most likely to remain in place if it has...
a large mass
While running with a cup of water, coming to an abrupt halt would cause the water to...
spill out the front
The weight of a 10 kg mass is...
approximately 100 Newtons