Grade 3 · Science · Challenge
Free Electricity, Magnetism, Light & Sound worksheet - version 7
Grade 3 electricity, magnetism, light & sound practice with original questions, explanations, and difficulty-matched printable versions. This printable version includes 8 grade-appropriate questions and a separate answer sheet.
Electricity, Magnetism, Light & Sound
Grade 3 · Stretch challenge · 8 questions · Version PG-1H3GB6F-1U15
1.What does a switch control?
2.What is the electromagnetic spectrum?
3.What happens to pitch as frequency rises?
4.What energy change occurs in a speaker?
5.Why does sound travel faster in solids?
6.What affects electromagnet strength?
7.Why can you hear an echo?
8.Why are parallel circuit branches useful?
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
- What does a switch control?Whether a circuit is open or closed
- What is the electromagnetic spectrum?The full range of electromagnetic waves
- What happens to pitch as frequency rises?Pitch becomes higher
- What energy change occurs in a speaker?Electrical energy becomes sound
- Why does sound travel faster in solids?Close particles transfer vibrations quickly
- What affects electromagnet strength?Current, coil turns, and core material
- Why can you hear an echo?Sound reflects from a surface
- Why are parallel circuit branches useful?Each branch can operate independently
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.