Cirrus is a thin, featherlike clouds made of ice crystals so the first picture is cirrus. Cumulus is a white and fluffy clouds that usually make the good weather so the second picture is a cumulus cloud. And stratus cloud
is the sheet of low, grey clouds that bring light snow or rain so the the third picture is stratus cloud.
1. Describe how the ball rolls off the ramp at each height -- discus the effect of bouncing or other factors.
ans: It bouncing for 2-3 times then it roll to other side.
2. Discus what is the fastest speed reached and any factors that could improve this.
ans: The ball using 20 cm ramp is the fastest because other ramp is too tall so when the ball release using tall ramp it will hit the ground.
3.Does the ball travel in a straight line, why and why not?
ans: Sometimes the ball travel tilted because the person who release the ball, release it tilted.