bazsinghnagoke
24.10.2020 •
Chemistry
When you change from the medium power objective to the high power objective, what
should you do?
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Ответ:
You must have the object centered before you change objectives to increase the magnification, because the field of view becomes smaller; if the object is off to the side, it may disappear when you go to higher magnification. ... The higher the power of the objective lens, the less will be the depth of field.
Explanation:
Ответ:
The correct answer (sample response) is:
If a magnetic or electric field is present, materials that generate these fields will interact by attracting or repelling each other because of their magnetic or electric properties.
The statement is a hypothesis about the effects of magnetic and electric fields. Use the format of "if...then...because..." and be sure to answer the lesson question: "How can magnetic and electric fields be demonstrated?"
Include the following in your hypothesis:
• The "if" part of your hypothesis refers to the presence of an electric or magnetic field.
• The "then" part of your hypothesis refers to a measurable attraction or repulsion.
• The "because" portion of your hypothesis connects the ideas of electromagnetic properties.