Chapter Overview
This chapter introduces the fundamental concepts of force and pressure. It explains what force is, how it is measured, and its effects on objects. The chapter also discusses pressure, its calculation, and its significance in various phenomena such as fluid flow and material strength. Real-world applications in engineering, medicine, and daily life are highlighted throughout the chapter.
Important Keywords
- Force: A push or pull acting on an object, measured in Newtons (N).
- Pressure: The force per unit area, measured in Pascals (Pa).
- Newton: The SI unit of force.
- Pascal: The SI unit of pressure, equivalent to one Newton per square meter.
- Friction: A force that opposes the relative motion of two surfaces.
- Contact Force: A force that results from the physical contact between two objects.
- Non-contact Force: Forces such as gravity and magnetic forces that act without physical contact.
- Atmospheric Pressure: The pressure exerted by the weight of the atmosphere.