Directions: Read the selection below. Follow the procedure and answer the
questions in your Science activity notebook
Supposed that you were having your on-the-job training in a private
investigating company. You were asked to join a team assigned to investigate
a hit and run case. The alleged suspect was captured by the CCTV camera
driving down a road leading to the place of incident. The suspect denied the
allegation, saying that he was then driving very slowly at a constant speed
Because of the short time difference when he was caught by the camera and
when the accident happened, he insisted that it would be impossible that he
would already be at the place when the crime happened. But when you were
viewing the scene again on the camera, you noticed that his car was leaving out
spots on the road. When you checked these spots on the site, you found out
that they were sta evident. So, you began to wonder if the spots can be used
to investigate the motion of the car of the suspect and check whether he was
telling the truth or not
Assume that the dots on the tape below represent the oil drop left by
the car down the road.
.
Materials:
pencil
ruler bordpaper
graph paper cutter or par of SOS
Procedure:
A. Using Tape Chart
1. Trace the tape chart on a clean sheet of bondpaper
2. Cut the traced chart into a strig
3. Convert the tape chart into a velocity-time graph by cutting the strip of
each drop and pasting them side by side on a graphing paper
4. Join the mid-points of the top of each tape with a line to form a velocity-
time graph
Based on the arrangement of the oil drop, was the suspect telling the truth?
Why?
I
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