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?
What is the primary function of white blood cells?
View QuestionWhich component of blood carries oxygen?
View QuestionWhich metal is liquid at room temperature?
View QuestionWhat type of bond is formed by sharing electrons between atoms?
View QuestionWhich part of the cell contains the genetic material?
View QuestionWhat is the unit of electric current?
View QuestionWhat is the chemical symbol for the element iron?
View QuestionWhich element is the most abundant in the Earth’s crust?
View QuestionWhich scientist is known for the laws of motion?
View QuestionWhat is the term for water changing from liquid to gas?
View Question