Pat yourself on the back when you engage in any exercise.
Each activity whether light, moderate or high intensity expends energy
and is helpful for weight loss as well as a healthy lifestyle.

The more intense
and longer the activity
the greater the impact on weight loss.

A YES answer to any of the questions indicates your current level of intensity.

Light  Intensity: heart rate is 68-to-92 beats per minute.
I did not break a sweat
I was able to talk and sing while exercising
Examples include stretching and leisurely walking.

Moderate Intensity:  heart rate is 93-to-118 beats per minute.
Did you break a sweat after about 10 minutes of continuous exercise?
Did you breath more often and deeper while you were exercising?
I was able to talk but not sing during the exercise.
Examples:  walking at a fast pace or biking

High Intensity:  heart rate is more than 119 beats per minute
I broke into a sweat just a few moments of continuous exercise.
I was breathing more deeply and rapidly.
I was able to speak for a short time but not hold a long conversation.
Examples include jogging, running, competitive swimming, fast pace sports.