MOTION
The course motion helps students understand how things move and the forces that affect them. It covers important ideas like speed, acceleration, and Newton’s laws of motion, using simple math and real-life examples. Students learn about different types of motion, such as objects falling, cars driving, and planets orbiting. Through theory experiments, simulations, they develop problem-solving skills and see how motion is part of everyday life. This course also prepares them for more advanced studies in science, engineering, and technology.
3. FORCE
1.2 Definition
Force:
Force is an agent that produces acceleration in the body on which it acts.
Or it is a phenomenon that change or tends to change the position of the body at rest or in uniform motion.
Force is a vector quantity as it has both direction and magnitude.
For example,
(i) To move a football, we have to exert a push i.e., kick on the football
(ii) To stop football or a body moving with same velocity, we have to apply push in a direction opposite to the direction of the body.
SI unit of force is Newton.
Dimension formula: [MLT-2 ]
1.2.1 Types of force
1. Contact force: These are forces that act on a body directly or through a medium. Examples are push, pull, friction, pressure etc.
2. Non-Contact (Field) force: These are forces that act through spaces without making direct contact with the body. Examples are gravitational force, electrostatic force and magnetic force.