Furnace runs too much?

[2 DA WDS]

I think my furnace runs too much. It seems like it shuts off for a little while then starts up again then runs a while then shuts off. So, I bought a thermometer and put it by the thermostat this morning and recorded what it did. The outside temp was 45.
The furnace started running and the inside temp was 71.4.
Ater 4min.10sec it shut off and the temp was 72.0.
After 6min it started again the temp was still 72.0
off in 3.10 temp 72.3
on in 4.55 temp 72.1
off in 4.46 temp 72.3
on in 6.29 temp72.3
off in 4.15 temp72.5
on in 5.45 temp 72.3
off in 4.0 temp 72.5

Is this the way other MS furnaces operate? I dont recall my other MS working this way. Also the air flow is not strong enough to blow an 81/2x11 sheet of paper off the register.

I have also been using the heatpump and it seems to operate the same way although I have not time & temped it. But the other night I noticed that the blower had stopped on the heat pump but I could still hear the compressor running. After a few minutes the blower kicked back on.
When the temp gets too low for the heatpump to function is the thermostat supposed to automatically switch over to the furnace?

This is an early build 05 RE3 that has a small white sensor in the bedroom under the overhead cabinet over the dresser and that is the only one. I am assuming that the thermostat itself controls the furnace but not sure what the small white sensor controls.