The question asks to identify the statement that is NOT true for an object experiencing non-uniform motion.
Understanding Non-Uniform Motion
Non-uniform motion occurs when an object's velocity changes over time. This change can be in speed, direction, or both.
Analyzing the Options
- Option 1: It moves unequal distances in unequal time intervals. This is characteristic of non-uniform motion, as the speed is not constant. Therefore, this statement is true for non-uniform motion.
- Option 2: Its velocity changes with time. This is the definition of non-uniform motion. Therefore, this statement is true.
- Option 3: The change in velocity is zero over time interval. If the change in velocity is zero, it means the velocity is constant. Constant velocity implies uniform motion, not non-uniform motion. Therefore, this statement is false for non-uniform motion.
- Option 4: It has different speeds at different points. A change in speed indicates a change in velocity, which is the hallmark of non-uniform motion. Therefore, this statement is true.
Conclusion on Non-Uniform Motion
The statement that is NOT true about an object in non-uniform motion is that the change in velocity is zero over a time interval. This condition describes uniform motion.
Important Questions from Motion
An object is covering distance in direct proportion to the square of time elapsed. What conclusion can be drawn about the motion of the object?
If the distance time graph of the motion of an object is a straight line but not parallel to the time axis, then it may be concluded that the object is moving with a:
Which of the following changes when a body performs uniform circular motion?
Vehicles have treaded tires so that it_______.
If the initial velocity of an object thrown upwards is 14 m/s, then the time taken for the object to reach its highest point will be_______. (a = 9.8 m/s2)
