rotation
the second hand
The second hand on the clock circles 420 times in 7 hours.
Because it counts seconds.
its least count will be one second
The second hand of a clock completes one full revolution in 60 seconds, which corresponds to 360 degrees. When the second hand moves from the 12 to the 8, it covers 8 of the 12 hour marks. This represents ( \frac{8}{12} = \frac{2}{3} ) of a full revolution. Thus, the second hand turns through ( \frac{2}{3} ) of a revolution.
the second hand
Sometimes, it is called a sweep hand, but the hands on a clock usually are called hour, minute, and second.
The second hand on the clock circles 420 times in 7 hours.
The angular velocity of the second hand of a clock is pi/30 radians per second.
The hour hand is the shortest hand of all three on a clock.
Because it counts seconds.
Because it points at the seconds? hours minutes seconds
its least count will be one second
put clock oil on the second hand.
The second hand on a clock was invented by Swiss clockmaker Jost Burgi in the late 16th century. Burgi is also credited with developing the first mechanical timepiece with a second hand.
There are 3 hands. The second hand, the minute hand and the hour hand.
add a second minute hand. If you could add a second minute hand to an analog clock, you would be able to increase the precision by allowing the time to be determined to the second.