ICSE Class 6 Physics, Unit 4: Energy
From the CISCE curriculum. 6 key concepts, about 2 days of study at 20 to 30 minutes a day.
What this unit aims at
The ability to do work is called Energy. Machines help us to do work. For example, a bottle opener is a machine. A needle, a doorknob are also machines. Some machines are more complex than others. A simple machine changes the direction or the magnitude of force applied. The six simple machines are the lever, the pulley, the wheel-and-axle, the inclined plane, the wedge and the screw. The factor by which a machine multiplies the force applied is called ‘mechanical advantage’. On the basis of location of fulcrum (the pivot point), the load and the effort, levers may be classified into three types or orders. The aim of this theme is to enable children know and understand about different types of machines and levers.
Your child should be able to
- define what a machine is
- describe six simple machines with examples from daily life
- describe different types of levers
- define mechanical advantage of a lever
- solve problems based on formula for mechanical advantage of a lever
Key concepts in this unit
- Simple Machines:
- Basic Concept Mechanical Advantage
- Types of Simple Machines:
- Lever Wheel and axle Pulley Inclined plane
- Wedge Screw Different Orders of Levers
- Numericals based on mechanical advantage or leverage Load × Load arm = Effort × Effort arm.
Teach this unit at home
- A day-by-day plan from the CISCE concepts, so you know what to cover each day.
- A step-by-step script for each day, so you know what to say and ask (AI-written from the CISCE curriculum, so check it against your child's school book).
- A quiz at the end.
From the CISCE Curriculum for Classes I to VIII (2016). CISCE sets what is taught, not the textbooks, so schools use different books and there are no page numbers here. Adhian Gurus is not affiliated with CISCE.