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Electricity, Magnetism, Light & Sound

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

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

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 12
  1. What happens in an open circuit?Current does not flow
  2. How do you see an object?Reflected light enters your eyes
  3. Name a good electrical conductor.Copper
  4. What gives a flashlight energy?A battery
  5. Why does a shadow form?An object blocks light
  6. What do like magnetic poles do?Repel
  7. What makes sound?Vibrations
  8. What does a switch control?Whether a circuit is open or closed

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.