ISCI 2001 Quiz 1
A freely falling object has an acceleration of 10m/s2. One second later its acceleration will be
10m/s2
consider a freely falling boulder equipped with a speedometer on a planet where the acceleration due to gravity is 20m/s2. In falling freely, its speed reading would increase each second by
20 m/s
a ball tossed straight upward at 40m/s with no air resistance, returns to its starting point with a speed of
40m/s
Ancient Greek investigators discovered
Earths circumference why things float Earth rotates daily
scientist to be arrested for his views was
Galileo
the hang time of an athlete who moves horizontally 2.0 m durring a 1.25 m high jump is
about 1s
science, art, and religion need not contradict one another because
all 3 involve different domains
which has more mass
an automobile battery
having to choose between science and religion is unnecessary
because both operate in different realms
a heavy and light ball are dropped at the same time from a high tower. The ball to reach the ground first, assuming no air resistance will be there
both together
the first to be credited for Earth circling the sun
copernicus
Eratosthenes measurements of earths size involved
deep well in synene pillars shadow in alexandria surveying the distance between alexandria and synene
2 measuments that are necessary for calculating average speed are
distance and time
mass is more fundamental quality than weight because mass
does not depend on gravity does not vary with location
a skydiver who falls at constant velocity is in a state of
dynamic equillibrium
a scientific hypothesis
educated guess
in measuring hang time we assume that the time moving forward upward is
equal to the time coming down
the scientific method is most effective in
gaining, organizing, and applying new knowledge
acceleration is a measure of
how fast how-fast changes change in velocity
the amount of friction acting when 2 blocks slide against each other depends on
how much they are pressed together the "stickiness" of atoms on their surfaces the kinds of material pressed
a crate sliding down an incline at a constant velocity is
in dynamic equillibrium
if an object has no acceleration of any kind, then we can say for certian that its
in mechanical equillibrium
Pseudoscience is a field of
junk science
a kilogram is a measure of
mass
Aristotle asserted that motion was characterized by
natural and violent motion
scientists who falsify experimental results or data are generally provided
no second chance
an object is pulled by 3 forces 200N to the right, 400 N to the right and 300 N to the left. The net force is
none of the above
the equillibrium rule eF=0
objects or systems at rest objects or systems in uniform motion is a straight line
the classic scientific method includes
observing carefully questioning predicting
Among those who charted the stars and planets in ancient....
polynesians chinese arabians
to move a crate across your basement floor friction will be less if you
pull with a rope making an upward angle
aristotles view of natural laws is best understood by
reasoning
when galileo dropped balls from the leaning tower of pisa he
refuted aristotles teachings
a truly educated person is knowledgeable about
science the arts religion
the net force acting on an object is
the combination of all forces acting on it
in the spirit of science, science oriented people must be willing to consider ideas
they dislike
people in general are unlikely to question their
tribe religion fav sports team
which of these is a vector quantity
velocity acceleration force
the concepts of velocity and acceleration are
very different from each other
the person most likely to fool you is
yourself
