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MF: 1.3 (10/14) Version B

Last updated over 2 years ago
9 questions

Objective: SWBAT create a model to show the motion of attractive and repulsive magnets and describe the forces involved in magnetic pairs.

Do Now:

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Do you think his evidence is strong? Why or why not?

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Do you think his evidence is strong? Why or why not?

"I (do/do not) think this is a strong source of evidence because ... "
Think: how similar are test 1 and 2?

Guided Notes:

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How can you tell or predict whether two magnets will attract each other, repel each other, or both?
  • Draw a pair of magnets that indicate attracting and repelling magnets

Practice:

Identify if you think the following evidence cars are strong or weak sources of evidence to support Barry’s Claim that, “Strong magnets only repel, and weak magnets only attract”.

Think:
- What does test 1 look like? What is being tested and how is it set up? - Test 2- How many changes are there 1? Good test- what do you conclude? More than 2? Bad test, no conclusion
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Evidence Card D

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Evidence Card A

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Evidence Card B

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Evidence Card C

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Do Strong magnets repel, and weak magnets attract?
  •   Yes
  •   No
Write: What evidence do you have to support your claim that, Yes- Strong magnets only repel, and weak magnets ony attract. Or No- Strong magnets do not always repel, and weak magnets do not always attract.
CFS:
  • Accurately describes the relationship between magnetic strength and movement of magnets in a system
  • Accurately identifies the strongest sources of evidence in a text

"I think:
- Strong magnets ony repel, and weak magnets only attract
OR
- Strong magnets do not always repel, and weak magnets do not always attract

I think this because according to evidence card (___) .... "

Exit Ticket:

3

Goal: Create two models. In one model, show two magnets that will attract. In the other model, show two magnets that will repel. Use the symbols shown in the Key in your models.
Do:
      Write the definition of attraction and repulsion
      In the left panel, draw two motionless magnets positioned so that a magnetic force will cause motion.
      In the right panel, show what would happen to the magnets after you let them move freely.