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11 questions
Science MUST be which of the following?
flexible
constant
testable
observable
When you repeat your own experiment
replication
repetition
When someone else repeats your experiment
repetition
replication
Which of these answers best describes a scientific theory?
an explanation based on the opinion of a scientist
a well-supported and widely accepted explanation of nature
a description of a specific relationship under given conditions
a statement describing what always happens under certain conditions
Which of these claims best describes how scientific idea change?
New evidence leads to modification of ideas
Scientific ideas rarely change, because they are based on extensive evidence
As a scientific idea changes, it eventually becomes a scientific theory and then a law
Scientists form opinions based on evidence and decide how the idea should change
A statement that describes the way the world works under certain conditions
empirical evidence
scientific theory
scientific law
scientific method
An explanationof nature that is well-supported and widely accepted
empirical evidence
scientific theory
scientific law
scientific method
What is the energy transformation that occurs in an electric pencil sharpener?
mechanical energy to electrical energy
electrical energy to mechanical energy
radiant energy to sound energy
chemical energy to mechanical energy
Which object shows an energy transformation from electrical to mechanical?
The roller coaster cart has the most kinetic energy at position-
W
X
Y
Z
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