Which State of Matter Has No Definite Shape

question 15

Multiple Choice

Which state of matter has no definite shape:

• A) solid
• B) liquid
• C) gas
• D) b and c
• E) all of these

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Definitions:

Shaping

A method in behavioral psychology used to gradually train a new behavior by reinforcing successive approximations to the desired behavior.

Premack Principle

A principle in psychology that states that more probable behaviors will reinforce less probable behaviors.

Negative Reinforcement

The removal of a stimulus to increase the probability that a behavior will be repeated.

Positive Punishment

The addition of a stimulus to decrease the probability that a behavior will recur.