The hour hand of a clock completes one full revolution, which is 360 degrees, in 12 hours. To determine how much the hour hand moves in 4 hours, we can use the following calculation:
First, we find out how many degrees the hour hand moves per hour:
Degrees per hour: 360 degrees / 12 hours = 30 degrees per hour.
Next, we multiply the degrees moved per hour by the number of hours:
Degrees moved in 4 hours: 30 degrees/hour * 4 hours = 120 degrees.
Therefore, in 4 hours, the hour hand of the clock would move 120 degrees.