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MOTION: FORCE AND FRICTION
CONTENT
Force
- Definition of Force
- Types of Forces
Friction
- Definition of Friction
- Types of Friction
- The Laws of Solid Friction
- Coefficient of friction
- Advantages and Disadvantages of Friction
- Methods of Reducing Friction
Force
Definition of Force
Force can be defined as that which changes or tends to change the state of rest or uniform motion of a body. Force is a vector quantity and the S.I. unit is Newton.
Force can cause a body at rest to move, it causes a moving object to accelerate, change direction, move in a curved path etc.
Types of Forces
There are two types of forces, namely contact force and force field. Contact force is a force that exists between bodies by virtue of their contact. They are push, pull, normal reaction, tension in strings, wires or frictional force.
Force field/non-contact force is the force that exists within a vector field such as gravitational field, magnetic field, electric field, and nuclear field.
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ClassHall Instructor
FUNMILOLA ATERE
BENITA DAVID
Maryam
David Oyedepo
Abdulrahman Oladokun
Halima Ahmadu