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Questions and Answers
In which direction does an electric field point around a positive point charge?
What happens to the electric field between two parallel plates when the plate separation distance increases?
What is the formula to calculate electric field?
What unifies biology as a single, coherent field?
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Which theme explains the unity and diversity of life?
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What allows organisms to move, grow, and reproduce?
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At what levels of organization can biologists study life?
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What is the primary tool used by biologists to make observations and form conclusions?
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Study Notes
Electric Fields
- An electric field around a positive point charge points radially outward in all directions.
- When the separation distance between two parallel plates increases, the electric field between them decreases.
- The formula to calculate electric field (E) is E = F/q, where F is the force experienced by a charge and q is the magnitude of the charge.
Biology
- The unifying concept in biology is the cell theory, which states that all living organisms are composed of cells, and all cells arise from pre-existing cells.
- Evolution explains the unity and diversity of life, showing how species adapt and change over time.
- Energy transformation allows organisms to move, grow, and reproduce, primarily through processes like metabolism.
Levels of Biological Organization
- Biologists can study life at multiple organizational levels, including molecules, cells, tissues, organs, organisms, populations, communities, ecosystems, and the biosphere.
- The primary tool used by biologists to make observations and form conclusions is the scientific method, which involves hypothesis testing, experimentation, and data analysis.
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Description
Test your knowledge on electric fields around point charges and between parallel plates, as well as the formula to calculate electric fields. Explore concepts that unify biology as a single, coherent field and understand the theme that explains the unity and diversity of life, including the processes that allow organisms to move, grow, and reproduce.
