Friction
• Make a hydraulic disc brake system & understand its working
• Make a friction feed model to see how rollers in printers work
to move the paper
• Use lubricants (grease, powder) to see how they reduce friction
between surfaces
• Learn how ball bearings reduce friction by converting sliding
friction to rolling friction
Make a multiple reflection unit to understand:
- Laws of reflection
- Number of images formed between 2 mirrors placed at an angle
Make an activity “Bird in a cage” to understand the persistence of vision
Visualising Solid Shapes
Visualize 3D shapes & structures when:
• Their 2D projections are given- top view, front view & side view
• Net diagrams are given (cube, cuboid, prism, pyramid, cylinder, cone)
• 2D shapes are rotated
• Partial 3D structures are given
• 2D hologram videos are given