Grade 3 · Science · Challenge
Free Electricity, Magnetism, Light & Sound worksheet - version 15
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-PO534C-1U15
1.What is the electromagnetic spectrum?
2.Why does sound travel faster in solids?
3.Why can you hear an echo?
4.What affects electromagnet strength?
5.What can happen when light enters water?
6.What happens to pitch as frequency rises?
7.What energy change occurs in a speaker?
8.Why does a shadow form?
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 15
- What is the electromagnetic spectrum?The full range of electromagnetic waves
- Why does sound travel faster in solids?Close particles transfer vibrations quickly
- Why can you hear an echo?Sound reflects from a surface
- What affects electromagnet strength?Current, coil turns, and core material
- What can happen when light enters water?It refracts, or bends
- What happens to pitch as frequency rises?Pitch becomes higher
- What energy change occurs in a speaker?Electrical energy becomes sound
- Why does a shadow form?An object blocks light
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.