PencilGo

Electricity, Magnetism, Light & Sound

Grade 2 · On-level practice · 8 questions · Version PG-1VM62OD-KW5O

Free printable
1.Name a good electrical conductor.
2.What can happen when light enters water?
3.Why can you hear an echo?
4.What happens to pitch as frequency rises?
5.What do like magnetic poles do?
6.How do you see an object?
7.What energy change occurs in a speaker?
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 20
  1. Name a good electrical conductor.Copper
  2. What can happen when light enters water?It refracts, or bends
  3. Why can you hear an echo?Sound reflects from a surface
  4. What happens to pitch as frequency rises?Pitch becomes higher
  5. What do like magnetic poles do?Repel
  6. How do you see an object?Reflected light enters your eyes
  7. What energy change occurs in a speaker?Electrical energy becomes sound
  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.