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    8.  A student is  timing  a simple  pendulum.                 (a)  70 km/h        (b)  80 km/h
                         She notices that it takes 30 seconds for the
                         pendulum  to complete  15 full  oscillations               (c)  93.3 km/h      (d)  100 km/h
                         (back-and-forth swings).  What is the "Time
                         Period" of this pendulum?                        10.  A cheetah can run at 108 km/h. A high-speed
                                                                              drone  can  fly at  25  m/s.  If they  race  in  a
                                               (Algorithmic Thinking)
                                                                              straight line for 10 seconds, who covers more
                                (a)  0.5 seconds                              distance?             (Algorithmic Thinking)

                                                                                    (a)   The Cheetah,  because  108  is  a
                                (b)  2.0 seconds
                                                                                       much higher number than 25.
                                (c)  15 seconds
                                                                                    (b)   The Drone, because m/s is a faster
                                (d)  45 seconds                                        unit than km/h.

                      9.  A train departs from Station A at 10:00 AM and            (c)   The Cheetah, because its speed is
                         arrives at Station B at 1:30 PM. The distance                 actually 30 m/s.
                         between the stations is 280 km. However, the
                         train  stopped for 30  minutes  at  a midway               (d)   They will cover the same distance
                         station. What was the train's average speed                   as both have equal speeds.
                         for the entire journey (including the stop)?

                                                  (Abstract Thinking)

                                       A train travels between two stations. The data is given below:

                                               Time (min)                Distance (km)
                                                    5                          2
                                                   10                          4
                                                   15                          4
                                                   20                          8
                                       What does the table suggest about the train's movement?

                                             (a)   Uniform motion throughout the journey.

                                             (b)   Train was at rest for some time.

                                             (c)  Speed is constant.

                                             (d)  Distance decreases.

                     80        Computational Thinking-7 (Science)

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