SHS3 Physics · Semester 1 Week 5: Basic Physics

Lesson notes

Learning Objectives

Indicator: 3.1.1.LI.4 - Explain weightlessness

By the end of the lesson, learners can:

Define weightlessness as the condition in which the apparent weight of a body is zero, and distinguish it from the absence of gravity.
Explain why astronauts in orbit experience weightlessness, using the concept of continuous free fall around the Earth.
Identify and describe at least two situations on Earth where a state of weightlessness or near-weightlessness can be experienced.
Analyse how the human body responds to prolonged weightlessness and suggest measures astronauts use to counter these effects.
Discuss the contributions of women and underrepresented groups to space science and evaluate biases in space-related career opportunities.

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Curriculum details

Strand: Mechanics and Matter (Strand 1)
Sub-strand: Basic Physics (1.1)
Content standard: 3.1.1.CS.2 - Demonstrate knowledge and understanding of gravitation. 3.1.1.LO.2 Explain the concept of gravitation.
Indicator: 3.1.1.LI.4 - Explain weightlessness
Suggested placement: Semester 1, Week 5 (Week 5 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.
Curriculum reference: NaCCA curriculum document, p. 151

Exemplars (from the NaCCA curriculum)

Experiential Learning: Learners watch a documentary or movie on the effect of gravity on the life activities in space. Learners understand that living in space requires collaboration and respect
of other cultures. Learners also understand that both genders live in harmony and undergo same training for space expeditions.
Examine biases in space science-related career and academic prospects.
Assessment (3.1.1.AS.4). The document marks no depth-of-knowledge level for this indicator.
Teaching and Learning Resources:
- Audio-visuals
- PhET interactive simulations
- Internet, projectors
- Laptop/computer
- YouTube
- Field visit
- Reference books