Electromagnetic Waves
A)include Light,radio Waves,X Rays,gamma Rays,and Microwaves $\times$ 10⁸ M/s

question 56

Multiple Choice

Electromagnetic waves

• A)include light,radio waves,X rays,gamma rays,and microwaves.
• B)do not require a medium for propagation.
• C)travel through a vacuum with a speed of approximately 3 \(\times\)10⁸ m/s.
• D)are produced when free electrons accelerate.
• E)are described by all of the above

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Definitions:

Circular Reactions

Repetitive actions carried out by infants, initially by chance and then intentionally, to explore and learn about their environment.

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or touched, a concept developed in early childhood.

Mental Symbols

Representations in the mind that stand in for objects, concepts, or actions, allowing individuals to think, remember, and solve problems.

Pretend Play

Pertains to imaginative play where children create scenarios and roles, demonstrating creativity and the ability to symbolize abstract concepts.