Uniform and non-uniform motion
Table of Contents
Hello readers ! Here you can learn, difference between uniform and non-uniform motion, acceleration.
Difference between Uniform and non-uniform motion:
| Uniform motion | Non-uniform motion |
|---|---|
| If a body travels equal distance in equal interval of time then body is said to be in a state of uniform motion. | If a body travels unequal distances in equal interval of time or body travels equal distances in unequal interval of time, such type of motion is called non-uniform motion. |
| In uniform motion speed of body is constant. | In non uniform motion speed of a body is not constant. |
| In uniform motion acceleration of a body is zero. | In non uniform motion acceleration of a body is not equal to zero, it may be constant or varying. |
Click here 🖱️👉 Motion NCERT in-text Questions Solution
Click here 🖱️👉 Motion NCERT Questions Solution
Click here 🖱️👉 Motion Class 9 Quiz-1
Click here 🖱️👉 Motion Graphs Class 9 Quiz-2
Some important short questions:
Question 1:
Can a body possess constant speed but variable velocity?
Answer: Yes, if body is in uniform motion either on circular path or curved path then it’s speed will be constant but changing velocity.
Since velocity is a vector quantity so it can be changed either by changing magnitude or direction.
Question 2:
What do you mean by negative acceleration?
Answer : If direction of acceleration is opposite to the direction of velocity, then body have negative acceleration. For example: When we apply break there is negative acceleration or retardation.
Question 3:
What will be nature of motion if velocity and acceleration are in the same direction?
Answer: Straight line motion
Question 4:
What will be nature of motion if direction velocity and acceleration are perpendicular to each other?
Answer: Circular motion
Question 5:
What will be nature of motion if there is an arbitrary angle between direction velocity and acceleration ?
Answer: Body will move on curved path.
Question 6:
What do you mean by non uniform accelerated motion?
Answer: If the acceleration of a body changes during motion, then the body is said to be in non-uniform accelerated motion.
Question 7:
Is it possible that a body moving at a constant speed is still accelerating?
Answer: Yes, if a body is moving in a circular path, its speed may be constant, but due to a change in direction, its velocity changes, and hence the body accelerates.
Question 8:
What is acceleration?
Answer: Acceleration refers to the rate at which an object’s velocity changes over time. It is a vector quantity that takes into account both the magnitude and direction of the change in velocity.
What is the difference between acceleration and retardation?
Answer: Acceleration refers to the rate of change of velocity, either positive or negative, indicating an increase or decrease in speed. On the other hand, retardation is synonymous with negative acceleration and represents the rate at which an object’s velocity decreases over time.
What is the relationship between acceleration and force?
Answer: According to Newton’s second law of motion, the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. The formula is: acceleration = net force / mass. Thus, a larger force applied to an object will result in a greater acceleration, while a smaller force will lead to a smaller acceleration.
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Uniform and non-uniform motion , Uniform and non-uniform motion , Uniform and non-uniform motion , Uniform and non-uniform motion