Subject: General Science
Book: NCERT Science Class 8
Force is a push or pull acting on an object.
- **Types of Forces**:
- Contact force (friction).
- Non-contact force (gravity, magnetic force).
- **Effects of Force**:
- Change in shape, direction, speed.
- **Pressure**:
- Force applied per unit area.
- Examples: Deep-sea divers wear special suits due to water pressure.
**Possible Exam Questions:**
1. Define force and give its types with examples.
2. How does pressure change with depth in liquids?
3. Explain how friction helps in daily life.
4. Why do sharp knives cut better than blunt ones?
5. How do astronauts experience microgravity?
Which gas is commonly used in balloons to make them float?
View QuestionWhat is the main purpose of stomata in plants?
View QuestionWhat is the smallest unit of life?
View QuestionWhat type of bond is formed by sharing electrons between atoms?
View QuestionWhat is the chemical symbol for gold?
View QuestionWhat is the approximate age of the Earth?
View QuestionWhat is the unit of electrical resistance?
View QuestionWhich process in plants is responsible for the loss of water vapor?
View QuestionWhich of the following is a fundamental force in nature?
View QuestionWhat is the main component of natural gas?
View Question