Activity 2: Who Walks Faster? Directions: Read the text inside the box then answer the questions below to
help John and Mary determine who walks faster. Write your
answers in your Science activity notebook.
Just yesterday John and Mary were given assignments to
record the measured distance and time spent in walking from their
home to the school.
John's home is 400 meters while Mary is 200 meters away
from the school. It took 400 seconds for John while Mary needed 200
seconds to reach the school.
200 m
400 m
Figure 6. Distance from Home to School
1. Compare how fast John walked than Mary.
2. What is the basis of your answer in number 1?
What is it?
Speed and Velocity
Speed is the rate of distance covered at a given time.
distance
speed
d
in symbols, V =
time
t
We can express speed in terms of miles per hour (mi/h), kilometers per
hour (km/h), or meters per second (m/s).
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