Subject: General Science
Book: NCERT Science Class 8
Friction is the force that opposes motion between two surfaces.
- **Types of Friction**:
- Static, sliding, rolling, fluid friction.
- **Effects**:
- Causes wear and tear but helps in walking.
- **Ways to Reduce Friction**:
- Lubrication, ball bearings.
**Possible Exam Questions:**
1. What is friction? How is it useful and harmful?
2. Explain the methods of reducing friction.
3. Why does an oiled machine work more smoothly?
4. Discuss applications of friction in sports.
5. Why do athletes wear special shoes?
Which process describes the splitting of a nucleus into smaller nuclei?
View QuestionWhat is the SI unit of power?
View QuestionWhat type of energy is stored in a stretched rubber band?
View QuestionWhat is the chemical formula for carbon dioxide?
View QuestionWhich particle is responsible for the negative charge of an atom?
View QuestionWhich gas is known as "laughing gas"?
View QuestionWhat is the term for an organism that can make its own food?
View QuestionWhat is the main function of the ozone layer?
View QuestionWhich gas is used in fire extinguishers?
View QuestionWhat is the unit of electrical resistance?
View Question