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Biblioteka

Lesson 3.1 Protons, Neutrons and Electrons

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Posljednje ažuriranje about 1 year ago
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Untitled Section 1
What do we mean by charge and why do we think it moves?

The video below shows the electric phenomenon explored in the simulation. Experiments like this with different materials are why we think that there has to be something in atoms that moves and "carries" charge.

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Question 1
02:23
Question 2
02:54
Question 3
03:19
Question 4
04:34
Question 5
06:07
Question 6
07:31

1. Go to the aluminum can interactive (https://www.physicsclassroom.com/Physics-Interactives/Static-Electricity/Aluminum-Can-Polarization/Aluminum-Can-Polarization-Interactive ) .

2. Explore-Interact-Learn:

Investigate the interaction between a glass rod and a rubber rod and the aluminum can. Play

with the simulation, moving the rods about the screen and observing the behavior of charges within the pop can. Then complete the models below by shading in the areas where electrons tend to congregate most densely.

Conclusion:

Describe what must happen inside of an aluminum can in order for it to be attracted to a

positively-charged and to a negatively-charged object.

Pitanje 7
7.

Shade in the area that should have the highest concentration (number per unit area) of negative charge. Be sure to think about distance between the rod and the can.

Pitanje 8
8.

Shade in the area that should have the highest concentration (number per unit area) of negative charge. Be sure to think about distance between the rod and the can.

Pitanje 9
9.

Shade in the area that should have the highest concentration (number per unit area) of negative charge. Be sure to think about distance between the rod and the can.

Pitanje 10
10.

Shade in the area that should have the highest concentration (number per unit area) of negative charge. Be sure to think about distance between the rod and the can.

Pitanje 11
11.

Shade in the area that should have the highest concentration (number per unit area) of negative charge. Be sure to think about distance between the rod and the can.

Pitanje 12
12.

Match the vocabulary word with the best definition

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

positively charged

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positively charged subatomic particle

nucleus

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negatively charged subatomic particle

negatively charged

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smaller than an atom

electron

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attracted to the positive end of a battery

subatomic

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attracted to the negative end of a battery

proton

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not attracted to the positive or negative end of a battery

neutral charge

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determines the mass of an atom, positively charged