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worksheet.docx
Assessment sheet
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№ |
Student's name __________________________ |
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Stage of the lesson |
Мах points |
Student’s point |
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1 |
Individual work Physical dictation |
15 |
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2 |
Pair work Tasks from Bilimland.kz |
8 |
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3 |
Group work «Station» |
12 |
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Result: |
35 |
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The percentage |
100% |
% |
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1-70% Committed to the goal 71-100% Achieve the goal |
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Individual work. Physical dictation
Answer the questions:
• What is an electric field?
• What is an electric charge?
• What properties are in the electric field?
• What is the power characteristic of the electric field?
• How is Coulomb's law formulated?
"Station"
Solving problems
1. Charge the metal ball -1.6 µCl. How many extra electrons are there on the ball?
2. With what force interact with each other two charges of 20 nCl each, standing at a distance of 3 cm from each other? к= 9·109 N·m2/ Cl2
3. When increasing each of the charges by 4 times, in order for the force of interaction to remain the same, it is necessary to change the distance between these charges several times.
4. Two small balls that are at a distance of 10 cm from each other, have the same negative charges, and they interact with a force of 0.23 mN. Find the number of" extra " electrons on each ball.
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