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Electricity, Magnetism, Light & Sound

Grade 2 · Stretch challenge · 8 questions · Version PG-CZFSQI-1YNK

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1.Name a good electrical conductor.
2.What does a switch control?
3.What do like magnetic poles do?
4.Why does a shadow form?
5.What energy change occurs in a speaker?
6.What do opposite magnetic poles do?
7.What can happen when light enters water?
8.How do you see an object?

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 1
  1. Name a good electrical conductor.Copper
  2. What does a switch control?Whether a circuit is open or closed
  3. What do like magnetic poles do?Repel
  4. Why does a shadow form?An object blocks light
  5. What energy change occurs in a speaker?Electrical energy becomes sound
  6. What do opposite magnetic poles do?Attract
  7. What can happen when light enters water?It refracts, or bends
  8. How do you see an object?Reflected light enters your eyes

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.