PencilGo

Electricity, Magnetism, Light & Sound

Grade 5 · Stretch challenge · 8 questions · Version PG-15JCNVH-O17E

Free printable
1.What can happen when light enters water?
2.What is the electromagnetic spectrum?
3.Why are parallel circuit branches useful?
4.What happens to pitch as frequency rises?
5.What does a switch control?
6.Why does a shadow form?
7.What energy change occurs in a speaker?
8.Why can you hear an echo?

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 7
  1. What can happen when light enters water?It refracts, or bends
  2. What is the electromagnetic spectrum?The full range of electromagnetic waves
  3. Why are parallel circuit branches useful?Each branch can operate independently
  4. What happens to pitch as frequency rises?Pitch becomes higher
  5. What does a switch control?Whether a circuit is open or closed
  6. Why does a shadow form?An object blocks light
  7. What energy change occurs in a speaker?Electrical energy becomes sound
  8. Why can you hear an echo?Sound reflects from a surface

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.