实验器材胶纸带、乒乓球、细线(图1)。实验步骤1.用胶纸带把乒乓球粘在一根约30厘米长的细线的一端(图2)。2.拎着细线的另一端,将乒乓球拿到自来水龙头下。3.拧开水龙头,让自来水冲在乒乓球上(图3)。4.慢慢地把细线引向一侧,离开自来水。这时,乒乓球好像 Experimental equipment tape, table tennis, thin line (Figure 1). Procedure 1. Stick the ping-pong ball to the end of a thin wire about 30 cm long (Figure 2). 2. Carry the other end of the thin line, get the ping-pong ball under the tap. 3. Unscrew the faucet and let the running water rinse on the ping-pong ball (Figure 3). 4. Slowly lead the thin line to one side and leave the tap water. At this time, table tennis seems