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chapter 2 test
yeah
25
Physics
9th Grade
09/11/2012

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Term
in science, an educated guess is a...?
Definition
hypothesis
Term
the synthesis of a large collection of information that contians well-testedd and verified hypothesis about certain aspects of the world is known as a scientific.....?
Definition
theory
Term
a scientific hypothesis may turn out to be right or it may turn out to be wrong. if it is a valid hypothesis, there must be a test for proving it
Definition
wrong
Term
a truly educated person is knowledgeably about..?
Definition
science, religion, and art
Term
of the sciences known as physics, chemistry, and biology, the most basic is?
Definition
physics
Term
the statement, "there are regions beneath the earths crust that will always be beyond the reach of scientific investigation", is a?
Definition
speculation
Term
whereas aristotle relid on logi in explaining nature, galileo relid on..?
Definition
the experiment
Term
the scientist to first introduced the ocncept of interia was..?
Definition
galileo
Term
if your automobil runs out of fuel while you are driving, the engline stops but you do not come to an immediate stop. the concept that most explains why is..?
Definition
interia.
Term
whirl a rock at the end of a string and it follows a circular path. if the string breaks, the tendency of the rock is to..?
Definition
increase speed
Term
according to newtons law of inertia, a railroad train in motion should continue going forever even if its engine is turned off. we never observe this becaue railroad trains..?
Definition
always have forces that oppose their motion
Term
whan a rocket ship accelerating in outer space runs out of fuel, it..?
Definition
no longer accelerates.
Term
if no external forces are acting on a moving object it will, 
Definition
continue moving at the same velocity
Term
galileo's use of inclined planes allowed him to effectlively was..?
Definition
slow down the acceleration of free fall.
Term
science is a body of knowledge that..?
Definition
describes order in nature, is an ongoing human activity, condenses knowledge into testable laws.
Term
eratosthenes learned about the position of the sun on june 22 by..?
Definition
consulting library information
Term
the easiet way for you to measure the distance between the earth and the moon is to place in your line of sight to  the moon...
Definition
a coin
Term
the safest wau for you to view the usn is wiht....
Definition
pinhole images.
Term
which of following is a scientific statement?
Definition
the moon is made of green cheese.
Term
which of th efollowing involves pasion, talent, and intelligence?
Definition
art, literature, music, science.
Term
eratosthenes of cyrene used geometry to indirectly measure..?
Definition
the circumfrence of the earth.
Term
aristarchus is not credited with determining...?
Definition
the idstance from the earth to the sun.
Term
object A has twice the mass of object B. if both objects experience the sam eammount of force
Definition
object B accelerates more.
Term
object A has twice the weight of object B. if both object have the same shape and size and both are dropped near the earths surface, 
Definition
both objects hit the ground at the same time 
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