Page 37 - Ranger PT3 2022 science
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Answers
                                                Answers





                                                              (b)   Prefix   Standard form
                                Model Paper                          mega       1 × 10 6
                                                                     micro      1 × 10 –6


                   SECTION A
                                                            SECTION C
                    1.  D   2.  C   3.  B   4.  B   5.  C      All Rights Reserved.
                    6.  C   7.  D   8.  B   9.  A   10.  C  6.   (a)  To increase voltage
                   11.  C   12.  D   13.  C   14.  B   15.  C  (b)  (i)  Student’s answer
                   16.  A   17.  A   18.  C   19.  C   20.  C    (ii)  More than 1.5 voltage
                                                              (b)  Usage
                   SECTION B                                     = 64 221.9 – 63 915.5
                                                                 = 306.4 kWh
                  1.   (a)  Chromosphere
                        Photosphere                              Cost need to be paid
           Penerbitan Pelangi Sdn Bhd.
                     (b)  (i)  Prominence                        = 306.4 × RM0.22
                                                                 = RM67.41
                        (ii)  Solar flare
                                                           7.   (a)  (i)  Hydroelectric power station
                  2.   (a)  (i), (iii)                           (ii)  Water
                     (b)  (i)  FALSE                             (iii)  There are many rivers
                        (ii)  TRUE                                   Filled with water throughout the year
                  3.  (a)                                     (b)  (i)  Step-up
                                                                     Step-down
                                                                 (ii)  P  needs to increase the voltage to
                                                                     prevent the loss of energy in the form
                                                                     of heat
                           Stone            Water                    Q  needs to  decrease  the  voltage to
                                                                     be supplied to the consumers
                     (b)
                                                           8.   (a)  (i)  Smoking in public
                           P : Melting                               Harm other person
                                                                 (ii)  Ask the customer to quit smoking for
                                                                     disturbing other customers
                                                              (b)  (i)  Lungs cancer
                                                                 (ii)  Tar in the cigaratte smoke is a
                           Q : Freezing                              carcinogen,  a substance  that can
                                                                     cause cancer.
                                                                 (iii)  Stop smoking
                  4.   (a)  (i)  absorbs                             Eat balanced diet
                        (ii)  chemical                               Regular health check
                     (b)  (i)  Photosynthesis                        Exercise regularly
                        (ii)  Melting                      9.   (a)  (i)  Extracting metal from its ore
                        (iii)  Combustion                        (ii)  X – Coke
                        (iv)  Respiration                            Y – Limestone
                  5.   (a)  Kilogram     Kelvin                  (iii)  Molten iron
                                                                     Hematite is iron oxide


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         00 ANSWER.indd   343                                                               25/03/2022   3:12 PM
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