Dynamics · SHS3 Physics

Lesson notes

Learning Objectives

Indicator: 3.1.3.LI.1 - Distinguish between elastic and inelastic collision.

By the end of the lesson, learners can:

Define elastic and inelastic collisions in their own words, using the concept of kinetic energy conservation.
Distinguish between elastic and inelastic collisions by comparing what happens to kinetic energy and momentum in each case.
Calculate the final velocity of bodies involved in both elastic and inelastic collisions, using the principle of conservation of momentum.
Classify real-world collision scenarios (e.g., vehicle crashes, ball games, atomic interactions) as elastic or inelastic, justifying their reasoning.
Work collaboratively in mixed groups to analyse collision videos and present findings to the class using appropriate scientific language.

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Curriculum details

Strand: Mechanics and Matter (Strand 1)
Sub-strand: Dynamics (1.3)
Content standard: 3.1.3.CS.1 - Demonstrate knowledge and understanding of collisions 3.1.3.LO.1 Use the concept of momentum change to verify of Newton's second and third laws of motion.
Indicator: 3.1.3.LI.1 - Distinguish between elastic and inelastic collision.
Suggested placement: Semester 1, Week 11 (Week 11 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Source document note: The official curriculum document has a fault in this entry, so the curriculum text above is transcribed exactly as printed:

content standard text - p.161: the document prints this content standard code as 3.1.3.C.S.3.1
indicator text - p.161: the document prints this learning indicator code as 3.1.3.LI.1.1
exemplars - p.161: the document prints this assessment code as 3.1.3.AS.1.1
Curriculum reference: NaCCA curriculum document, p. 161

Exemplars (from the NaCCA curriculum)

Collaborative learning: Let learners watch a video of bodies involved in collisions for learners to come out with the difference between elastic and inelastic collisions and make deductions.
Foster an inclusive and supportive learning environment.
Assessment (3.1.3.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 3 Strategic reasoning.
Teaching and Learning Resources:
- Audio-visuals
- Internet
- Projectors
- YouTube
- Interactive virtual laboratory