GRAPH OF MOTION

Displacement -Time Graph

Displacement - Time Graph

In a Displacement-Time Graph, the gradient of the graph is equal to the velocity of motion.

Analysing Displacement - Time Graph

Gradient = 0Hence, velocity = 0

RISHWIN SINGH SINDA GRAPH OF MOTION

Gradient is constant,hence, velocity is Uniform

Gradient is negative and constant, hence velocity is uniform and in opposite direction

Gradient is increasing, hence velocity is increasing.

Gradient is decreasing, hence velocity is decreasing.

RISHWIN SINGH SINDA GRAPH OF MOTION

Velocity - Time Graph

Velocity - Time Graph

1. The gradient of the velocity-time gradient gives a value of the changing rate in velocity, which is the acceleration of the object.2. The area below the velocity-time graph gives a value of the object's displacement.

Analysing Velocity-Time Graph

Uniform velocity

Uniform acceleration

RISHWIN SINGH SINDA GRAPH OF MOTION

Increasing acceleration

Uniform deceleration

Decreasing acceleration

RISHWIN SINGH SINDA GRAPH OF MOTION

Graph of Free Falling

1. Free falling is a motion under gravitational force as the only force acting on the moving object.

2. The acceleration of a free falling object is always constant.

3. On the surface of the earth, the acceleration of is equal to 10ms-2, and is named as gravitational acceleration.

4. In SPM, you need to know the graphs of free falling of the following movement

a. Launching object upward.

b. Dropping Object from High Place

c. Object Falling and Bounce Back

Launching Object Upward1. When you launch an object upward, its velocity decreases at a constant rate, hence it's a straight line with negative gradient in a velocity-time graph.

2. Since the velocity decreases at a constant rate, hence the acceleration is constant. Also, the acceleration is negative because the speed decreases in positive direction. Therefore, the acceleration graph is a horizontal line in the negative domain.

Motion Velocity-Time Graph Acceleration-Time Graph

RISHWIN SINGH SINDA GRAPH OF MOTION

Dropping Object from a High Place1. When an object drops from a high place, its velocity increases at a constant rate, hence it's a straight line with positive gradient in a velocity-time graph.

2. Since the velocity increases at a constant rate and the speed increases in positive direction hence the acceleration is constant and positive.

Motion Velocity-Time Graph Acceleration-Time Graph

Object Falling and Bounce Back

Motion Velocity-Time Graph Acceleration-Time Graph

RISHWIN SINGH SINDA GRAPH OF MOTION