3-TAS-01 Gravitation
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Contents
Outcomes
- Pupils can define weight as the force on an object due to its mass.
- Pupils can describe qualitatively the effect of changing distance and masses on the strength of a gravitational force.
Specification References
- 1.8 Identify types of forces
Starter
- Cavendish experiment demonstration
Main Body of Lesson
- Define difference between mass and weight
- Interplanetary Can experiment
- Video clips of moon experiments; link to Newton's Laws of Gravitation
- Bowling Ball and Lycra demonstration followed by pupil experiment
- Introduce gravity as the cause of spherical orbiting planets
Plenary
- Key phrases crossword
Homework
- Introduction to Alien Planet Project
Additional Information
Resources Required
- Cavendish experiment
- Bowling Ball
- Lycra sheet
Textbook References
Website References
- A short biography of Henry Cavendish
Skills Addressed
Safety/Hazards
- Bowling ball is heavy
- Class II laser used in Cavendish experiment
Notes
- None
