Question

How does an umpire signal that a goal has been scored?

a) Raise one arm.
b) Blow the whistle twice.
c) Wave a flag.
d) None of the above.

Answer 1

An umpire signals a goal by blowing a whistle and indicating a restart at the center of the field or rink; raising an arm may occur too, while waving a flag is not standard for a goal signal.

Step-by-step explanation:

The question of how an umpire signals that a goal has been scored can vary depending on the sport. In general, for sports like soccer and hockey, when a goal is scored, the umpire or referee usually signals the goal by blowing a whistle and pointing towards the center of the field or rink indicating the restart of the game at the halfway line or center ice. In some cases, they might also raise their arm. However, waving a flag is typically used for signaling out of bounds or offsides in some sports rather than a goal. In the context of the additional reference information, none of the options provided speak directly to sound and time measurement experiments.