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Electricity, Magnetism, Light & Sound

Kindergarten · On-level practice · 8 questions · Version PG-1IUM1U0-GS42

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1.What happens in an open circuit?
2.What does a switch control?
3.What do like magnetic poles do?
4.Name a good electrical conductor.
5.Why does a shadow form?
6.How do you see an object?
7.What makes sound?
8.Which common metal is magnetic?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 14
  1. What happens in an open circuit?Current does not flow
  2. What does a switch control?Whether a circuit is open or closed
  3. What do like magnetic poles do?Repel
  4. Name a good electrical conductor.Copper
  5. Why does a shadow form?An object blocks light
  6. How do you see an object?Reflected light enters your eyes
  7. What makes sound?Vibrations
  8. Which common metal is magnetic?Iron

Worked example

Use a model to track energy, forces, and waves through a system.

Common mistake

Assuming energy travels without a path or medium.

Helpful hint

Draw the source, path, interaction, and result.