Examlex
-Which two forces form an "action-reaction" pair that obeys Newton's third law?
Scientific Theory
In science, a widely accepted explanation supported by a large body of observations and experiments. A scientific theory relates facts that appear unrelated; it predicts new facts and suggests new relationships. Compare with hypothesis.
Unchangeable
A term describing something that cannot be altered or modified.
Hypotheses
Proposed explanations for a phenomenon, made as a starting point for further investigation.
Observations
The act of noting and recording something with instruments or the senses as a part of scientific research or empirical study.
Q2: How high does the ball rise?<br>A)70.0 m<br>B)10.0
Q7: Complete the following statement: According to the
Q9: Especially for university freshmen and their parents
Q12: The Earth takes slightly less than one
Q13: An elevator is moving upward with a
Q13: Which one of the following expressions
Q29: A mother is holding her 4.5-kg baby
Q44: Approximately one billion years ago, the Moon
Q51: A ball is whirled on the end
Q52: The graph shows the height versus time