The answer process is as follows:

The schematic diagram of (1) clock is as follows:

(2) There are 12 numbers on the clock, and the included angle between no two adjacent numbers is 30 degrees. The hour hand on the clock passes through two adjacent numbers every hour, from which it can be concluded that the hour hand rotates 30 degrees every hour.

(3) The minute hand rotates once every hour, which is 360 degrees. The degree of rotation per minute is 360/60=6 degrees.

Extended data:

Conversion relationship of time units:

(1) One day = 1440 minutes, 1 hour =60 minutes, 1 minute =60 seconds.

(2) A moment = 15 minutes, and a word =5 minutes (used in southern Fujian and Guangdong).

Angle relation of each pointer of the clock:

(1) An ordinary clock is equivalent to a circle, and its hour hand or minute hand is equivalent to walking 360 degrees.

(2) The angle of each large grid on the clock is 30.

(3) The angle of the hour hand every 1 min should be 0.5.

Several key angles on the clock face:

(1) 9: 00 am sharp: the angle between the hour hand and the minute hand is 90 degrees.

(2) noon 12 o'clock: the included angle between the hour hand and the minute hand is 0 degrees.

3 pm sharp: the angle between the hour hand and the minute hand is 90 degrees.