science

Grade6

Easy

Question

# Pick the odd one out.

- A flight taking off.
- A flight landing.
- A flight at a particular height above the ground moving at a constant speed.
- A flight moving on the runway.

Hint:

### During each phase of an airplane's motion, such as takeoff, flight, and landing, the plane traverses a different distance per unit of time. Hence, it is a non-uniform motion.

## The correct answer is: A flight at a particular height above the ground moving at a constant speed.

- A uniform motion is one in which the speed of an object remains constant. A plane traveling at a constant speed and altitude is an example of uniform motion.
- When a plane is moving at a particular height with some steady speed, it is also uniform. A flight before taking off runs on the runway in a linear motion, it is also a uniform motion.

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