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What precautions should be taken while repairing or maintaining a bicycle?
When repairing a bicycle, ensure proper tools like spanners and wrenches are used. Keep all moving parts lubricated, especially the chain, to prevent wear. Regularly check brakes, tyres, and gears for functionality. Maintain a clean workspace to avoid accidents, and do not over-tighten bolts or screRead more
When repairing a bicycle, ensure proper tools like spanners and wrenches are used. Keep all moving parts lubricated, especially the chain, to prevent wear. Regularly check brakes, tyres, and gears for functionality. Maintain a clean workspace to avoid accidents, and do not over-tighten bolts or screws. Inspect tyres for punctures and ensure proper air pressure. Always stabilize the bicycle on a stand before working on it to ensure safety.
See lessWhat are the benefits of visiting a bicycle repair shop? List questions you can ask a mechanic.
At a bicycle repair shop, you learn practical skills like fixing brakes, adjusting saddle height, and aligning wheels. Mechanics can guide on how to clean a bicycle and identify common issues like squeaky brakes or flat tyres. Questions to ask include: • How often should tyres be inflated? • How toRead more
At a bicycle repair shop, you learn practical skills like fixing brakes, adjusting saddle height, and aligning wheels. Mechanics can guide on how to clean a bicycle and identify common issues like squeaky brakes or flat tyres. Questions to ask include:
See less• How often should tyres be inflated?
• How to clean and oil the chain?
• What tools are essential for basic repairs?
This knowledge ensures better bicycle maintenance.
What are the steps to plan and organize a school exhibition for toys made from waste materials?
To organize a toy exhibition: 1. Choose a purpose (awareness, creativity) and theme like eco-friendly toys. 2. Select and decorate a suitable venue. 3. Display toys attractively with creators’ names and labels. 4. Send invitations to parents and community members. 5. Arrange volunteers for visitor aRead more
To organize a toy exhibition:
See less1. Choose a purpose (awareness, creativity) and theme like eco-friendly toys.
2. Select and decorate a suitable venue.
3. Display toys attractively with creators’ names and labels.
4. Send invitations to parents and community members.
5. Arrange volunteers for visitor assistance and safety.
6. Collect feedback for improvement.
This event fosters creativity, promotes sustainable practices, and engages the community meaningfully.
What are some additional activities you can do to explore simple machines and their uses?
To explore simple machines, create a chain reaction model combining levers, wheels, and pulleys. Repair a bicycle to understand how simple machines interact. Observe tools like scissors or bottle openers at home to identify their mechanisms. Research historical uses of simple machines, such as leverRead more
To explore simple machines, create a chain reaction model combining levers, wheels, and pulleys. Repair a bicycle to understand how simple machines interact. Observe tools like scissors or bottle openers at home to identify their mechanisms. Research historical uses of simple machines, such as levers in temple construction. These activities enhance problem-solving skills and demonstrate the relevance of simple machines in daily life and larger engineering projects.
See lessRusting of an article made up of iron is called (a) corrosion and it is a physical as well as chemical change. (b) dissolution and it is a physical change. (c) corrosion and it is a chemical change. (d) dissolution and it is a chemical change.
The correct answer is: (c) Corrosion and it is a chemical change. Rusting occurs when iron reacts with oxygen and moisture, forming iron oxide (rust). This process alters the chemical composition of iron, making it a chemical change rather than a physical one. https://www.tiwariacademy.com/ncert-solRead more
The correct answer is: (c) Corrosion and it is a chemical change. Rusting occurs when iron reacts with oxygen and moisture, forming iron oxide (rust). This process alters the chemical composition of iron, making it a chemical change rather than a physical one.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/
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