What happens when things collide

ScienceEnergyAges 9–10

Ask questions and predict outcomes about the changes in energy that occur when objects collide

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Teaching Table

Set out your lesson

Predict and observe a gentle collision, keeping predictions separate from results.

Activity

Can discuss the supplied example in an accessible mode; adapt directions without supplying the target answer.

Policy

Check the learner can follow the model with support before moving on. Source prerequisite ordering is not learner mastery; return to prerequisite work when needed.

Use two large soft balls on a clear floor with an adult. No throwing, hard projectiles, stairs or collisions with people. If unavailable, use the thought experiment only. Open S first, G together, then T alone; put S and G away before T. Keys stay adult-only. No purchase or printing is required; an unavailable physical observation remains pending, not passed.

Materials are ready in each step. Use them on screen or print just the current step. Put teaching examples aside before the learner tries.

What this lesson covers and its limits

These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.

partial: Ask questions and predict outcomes about the changes in energy that occur when objects collide
Real collisions conditional. No universal transfer fraction or invented measurements.
partial: Predict the outcome of a collision based on the speeds and sizes of the objects
Real collisions conditional. No universal transfer fraction or invented measurements.
partial: Explain that energy transfers from one object to another during a collision
Real collisions conditional. No universal transfer fraction or invented measurements.
partial: Describe observable changes: one object speeds up, the other slows down, sound is produced
Real collisions conditional. No universal transfer fraction or invented measurements.
partial: If {{name}} rolls two balls towards each other, can they predict what will happen when they hit and explain that energy transfers between them?
Real collisions conditional. No universal transfer fraction or invented measurements.

Real collisions conditional. No universal transfer fraction or invented measurements.

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Predict and observe a gentle collision, keeping predictions separate from results.

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Check understanding

Predict the outcome of a collision based on the speeds and sizes of the objects
Explain that energy transfers from one object to another during a collision
Describe observable changes: one object speeds up, the other slows down, sound is produced

“If your child rolls two balls towards each other, can they predict what will happen when they hit and explain that energy transfers between them?”

Curriculum record

Type: Conceptual
Subject: Science
Domain: Energy
Age range: Ages 9–10

Standards

ngss-k5:4-PS3-3