Examlex
At a certain temperature, a simple pendulum has a period of 1.500 seconds. The support wire is made of brass and has a coefficient of linear thermal expansion of 1.90 × 10-5/C°. How much must the temperature be increased to increase the period to 1.506 seconds?
Visible Imitation
The act of copying someone’s actions or behaviors that are observed, as a form of learning or social interaction.
Object Permanence
The understanding that objects continue to exist even when they cannot be seen, heard, or touched.
Social Skill
The ability to interact effectively with others in a socially appropriate and successful manner.
Peek-a-Boo
A classic game played with babies and young children where one hides their face, then reveals it saying "Peek-a-boo," meant to entertain and teach object permanence.
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