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Electricity, Magnetism, Light & Sound

Grade 2 · Building confidence · 8 questions · Version PG-NUO9A0-8AVC

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1.What happens in an open circuit?
2.What gives a flashlight energy?
3.Why does a shadow form?
4.What makes sound?
5.Name a good electrical conductor.
6.What do opposite magnetic poles do?
7.What do like magnetic poles do?
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 5
  1. What happens in an open circuit?Current does not flow
  2. What gives a flashlight energy?A battery
  3. Why does a shadow form?An object blocks light
  4. What makes sound?Vibrations
  5. Name a good electrical conductor.Copper
  6. What do opposite magnetic poles do?Attract
  7. What do like magnetic poles do?Repel
  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.