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Physics  Form 4  Chapter 2 Force and Motion I

                   C   v                       11.  A marble is dropped from     C    v
                                                  a height h m. Which of the
                                              HOTS
                                                  following graphs represent
                                                  the final velocity, v against
                                                  height, h of the marble if
                      0           t               the air resistance can be                      t
                                                  neglected?
                   D   v                                                             v
                                                  A   v                          D




                      0           t
                                                                 h                               t
                10.  Figure 10 shows a            B   v                       13.  Figure  13 shows a teapot   Chapter
               HOTS  displacement-time graph of a                                being pulled by a boy using a
                   motorcycle.                                                   thread.
                s /m
                                                                                            Thread          2
                                                                 h                   Teapot
                                                  C   v                                   Figure 13
                                                                                  If the boy pulls the teapot
                                                                                 with an increasing force
                                         t /s                                    slowly, the thread does not
                         Figure 10                                               snap. But if he pulls the
                                                                 h               teapot with a sudden strong
                   Which of the following         D   v                          force the thread snaps. What
                   velocity-time graph shows the                                 concept is related to this
                   motion of this motorcycle?                                    observation?
                   A   v                                                         A  Impulse   C  Friction
                                                                                 B  Momentum D  Inertia
                                                                 h            14.  Figure 14 shows two identical
                                                                                 threads X and Y.

                                               12.  A ball is thrown vertically
                      0            t              upward. By neglecting the
                   B   v                          air resistance, which of the                 X
                                                  following velocity against             Stone
                                                  time graph best explains
                                                  the motion of the ball until it              Y
                                                  reaches a maximum height?
                                                  A   v
                      0            t
                   C   v
                                                                                             Weight
                                                                                          Figure 14
                                                                                  If the mass of the load is
                                                                 t
                                                                                 increased slowly, state what
                                                  B   v                          will happen to X and Y.
                      0            t
                   D   v                                                         A  Both X and Y will snap at
                                                                                    the same time.
                                                                                 B  X will snap first followed
                                                                                    by Y.
                                                                                 C  Y will snap first followed
                                                                 t
                                                                                    by X.
                      0            t                                             D  Only X will snap.

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