perhatian pelajar 4um dan 4ukm sila jawab semua soalan dibawah dan hantar melalui e-mail kepada pn chow sebelum 23 oktober 2009
1. Define distance and displacement ~ Distance between two points is the path traveled by the object. ~ Displacement is distance in a specified direction.
2. Define speed and velocity, and state that v= s/t ~ Speed is the rate of change of distance and can be expressed as: ~Speed = distance / time
~ Velocity is the rate of change of displacement and can be expressed as: ~ Velocity = displacement / time , or ~ v = s/t
3. calculate speed and velocity a. Which of the following is not a scalar quantity? Distance / Speed / Velocity
b. What is the speed of cheetah if it sprints 100 m in 4s? ( Tips: check units before do your calculation )
c. The diagrams below shows a ticket tapes . Determine, i) Time interval between each dot. ii) Time taken from A t B. iii) Distance covered from A to B. iv) Velocity