Draw a wave train. Tell the following about your wave train.

a) How many waves are there in this wave train?

b) Wavelength cm

c) Amplitude cm

d) Frequency Hz

e) Speed cm/s

Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.