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Antenna, a structure that is designed to transmit or receive radio waves. Television and radio antennas usually consist of wires, rods, or towers; in transistor radios they may be small coils of wire wound on ferrite rods. In directive microwave communication links or radio telescopes, they may be metal horns or dielectric rods, with or without large metal reflectors.

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10th grade Chem honors

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A lab that investigates the strengths of different types of intermolecular forces.

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Describing the three main types of intermolecular forces, and the relative strengths of them.

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Magnets have their magnetic fields and poles. They produce force field (magnetic fields) in the place around. These so called fields cannot be seen or invisible in human eye, but it can be mapped in various methods.