Some politicians take pride in maintaining a particular point of view. They think that a change of mind would be seen as a sign of weakness. How is a change of mind viewed differently in science?
A) A change in mind is not viewed differently in science and is still subject to much criticism.
B) Science deals with facts that are confirmed by experiments. A change of mind in science, therefore, is usually the result of new experimental evidence obtained from experiments.
C) A scientist who changes his or her mind is often perceived as less honest, while a politician who changes his or her mind is often perceived as less trustworthy.
D) A scientist tries to understand many different points of view and so is apt to change his or her mind frequently.
Question 2
Which of the following is not a property of an electron?
A) charge changes depending on mass
B) fundamental component of atoms
C) attracted towards positively charge electrical plates
D) weighs approximately 9.1 10-31 kg
E) has a negative charge
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