Step 2: Next, you will listen to the sound of the tuning fork and measure how long it appears to persist. You will be comparing times under different conditions so it is important to keep a few things consistent. First, make sure the room is quiet. Second, try to remember how hard you strike the tuning fork. Finally, after striking the tuning fork, hold it away from your ears at arm's length. Do these things, and use a stopwatch or clock to measure the total time until you can no longer hear the sound. A sure way to find a timer on a computer would be to open up the Lab 07 Simulation, and select the timer option. Record your time below, including units, and repeat two more times to get an average. t = = to = Liavg