- Friction: Parts of machines rub against each other when they work, creating friction.
- Dirt and Dust: Dirt and dust can get between these moving parts, increasing the friction and making the machine work harder, which can lead to damage.
- Weather Effects: Rain, humidity, and other weather conditions can cause metal parts to rust and erode.
Topics
Natural Resources – Air, Water and Land
- Natural Resources
- Atmosphere and Its Layers
- Air Around Us
- Composition and Components of Air
- Importance of Air
- Air Pollution and Its Causes
- Water: Our Lifeline
- Availability of Water
- Composition of Water
- Importance of Water
- Scarcity of Water
- Land
- Soil Formation
- The Importance of Conserving Earth’s Natural Resources
The Living World
Diversity in Living Things and Their Classification
Disaster Management
Substances in the Surroundings –Their States and Properties
Substances in Daily Use
Nutrition and Diet
- Nutrients and Nutrition
- Component of Food
- Carbohydrates
- Diseases Due to Deficiency of Carbohydrates
- Fats (Lipids)
- Diseases Due to Deficiency of Fats
- Proteins
- Diseases Due to Deficiency of Proteins
- Vitamin and Minerals
- Diseases Due to Deficiency of Vitamin
- Diseases Due to Deficiency of Minerals
- Fibre
- Diseases Due to Deficiency of Fibre
- Water
- Diseases Due to Deficiency of Water
- A Balanced Diet
- Nourishment and Malnutrition
- Food Adulteration
Our Skeletal System and the Skin
Motion and Types of Motion
Force and Types of Force
Work and Energy
- Force, displacement and work
- Energy
- The relationship between work and energy
- Forms of Energy
- Mechanical Energy
- Heat Energy (Thermal Energy)
- Light Energy
- Sound energy
- Chemical Energy
- Transformation of Energy
- Energy Resources
- Conventional energy resources or non-renewable energy resources
- Non-conventional energy resources or renewable energy resources
- Energy saving and green energy
Simple Machines
Sound
Light and the Formation of Shadows
Fun with Magnets
The Universe
Maintenance of Machines:
Basic Steps in Machine Maintenance:
- Cleaning: All parts of the machine are wiped clean to remove dust, dirt, and grime. This helps to reduce wear and tear from friction.
- Lubrication: Oil or another lubricant is applied to parts that move against each other. This creates a slippery surface that reduces friction and prevents the parts from wearing out quickly.
- Protection from Dust: Machines are covered when not in use to prevent dust from settling on them, which helps keep the moving parts clean and reduces the need for frequent cleaning.
- Weatherproofing: To protect against the effects of weather, metallic parts are often painted to prevent rust. Machines should also be stored in a dry place to avoid moisture buildup.
Maintenance of Machines
If you would like to contribute notes or other learning material, please submit them using the button below.