{"id":243081,"date":"2023-08-07T16:00:04","date_gmt":"2023-08-07T08:00:04","guid":{"rendered":"https:\/\/thepiquelab.com\/blog\/?p=243081"},"modified":"2023-08-07T16:33:20","modified_gmt":"2023-08-07T08:33:20","slug":"2019-chij-st-nicholas-girls-school-sngs-p6-sa2-examination-paper-analysis","status":"publish","type":"post","link":"https:\/\/thepiquelab.com\/blog\/2019-chij-st-nicholas-girls-school-sngs-p6-sa2-examination-paper-analysis\/","title":{"rendered":"2019 CHIJ St. Nicholas Girls’ School (SNGS) P6 Preliminary Examination Paper Analysis"},"content":{"rendered":"

[et_pb_section fb_built=”1″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.21.0″ text_text_color=”#000000″ z_index_tablet=”500″ global_colors_info=”{}”]<\/p>\n

Welcome Back To Our Examination Paper Analysis Series!<\/strong><\/h2>\n

To play a part in Singapore\u2019s movement \u201cTowards Zero Waste\u201d, more Singaporeans are now bringing along their reusable bags around when they go grocery shopping.<\/p>\n

Have you ever encountered a time when you bought too many things while grocery shopping and your reusable bag snapped because the things that you placed in the bag are just too heavy?<\/p>\n

Unfortunately, I have\u2026when I overzealously tried to put 10 kg of apples in my reusable bag! I had my apples rolling all over the ground when my bag snapped… \ud83c\udf4e<\/p>\n

With the thought that the reusable bag that snapped was too weak, I decided to purchase another brand of reusable bag that I believe is much stronger. Without disappointment, on my next grocery shopping trip, I purchased 2 kg of biscuits, placed them in my reusable bag and VOILA! The new reusable bag did not break!<\/p>\n

\"\"<\/p>\n

Let\u2019s pause my story here for a quick food for thought\u2026<\/p>\n

\n

\ud83c\udf4e Food For Thought<\/strong>: Was it correct to conclude that the second reusable bag was indeed stronger than the first reusable bag that snapped?<\/p>\n<\/blockquote>\n

To answer this question, we will be reviewing the 2019 CHIJ St. Nicholas Girls’ School (SNGS) <\/strong>P6 Preliminary Examination Paper<\/strong>.<\/p>\n

\n

Read Also:<\/h3>\n
    \n
  1. 2018 Rulang Primary School (RLPS) P4 SA2 Examination Paper<\/a><\/strong><\/li>\n
  2. A Beginner’s Guide to Materials: Insulators and Conductors<\/a><\/strong><\/li>\n<\/ol>\n<\/div>\n\n

    Let’s Get Started On This Question!<\/strong><\/h2>\n

    \"\"<\/p>\n

    Source: CHIJ St. Nicholas Girls’ School \u2013 2019 P6 Preliminary Examination Paper [Q20]<\/em><\/p>\n

    Thought Process<\/strong><\/h2>\n

    Looking at the question, I believe you will be able to identify that this question is testing you on the concepts from the topic of Materials<\/a>. Are you able to tell which property of materials is tested here?<\/p>\n

    If you are thinking of \u2018strength<\/strong>\u2019, you are correct!<\/p>\n

    \n

    \ud83e\ude99 <\/span>What is strength<\/strong>?<\/p>\n

    Strength is the ability of the material to withstand weights without breaking<\/strong>.<\/p>\n<\/blockquote>\n

    Questions often require students to know how to identify\/compare the strength of the materials given.<\/p>\n

    Do you know how to test the strength of materials?<\/p>\n

    \n

    \u26d3 We can test a material\u2019s strength<\/strong> by placing weights on it and find out the maximum weight the material can withstand<\/u><\/strong> without breaking!<\/p>\n

    A stronger<\/strong> material withstands more<\/strong> weight without breaking.<\/p>\n

    A weaker<\/strong> material withstands less<\/strong> weight without breaking.<\/p>\n<\/blockquote>\n

    This also means that if you place a weight that is heavier than what the material can withstand on it, the material will break! After understanding what strength is, let\u2019s first analyse the strength of rope J.<\/p>\n

    Question Analysis<\/strong><\/h2>\n

    Rope J<\/strong><\/p>\n

    We can see that rope J has not broken even though a 50 kg mass was hung on it. What does that tell us about the strength of rope J?<\/p>\n

    This shows that rope J is strong enough to withstand\/hold at least 50 kg mass without breaking.<\/p>\n

    \"\"<\/p>\n

    However, did the question state that 50 kg was the maximum weight<\/u><\/strong> that rope J can withstand before breaking? No!<\/strong><\/p>\n

    As such, there is no information on how much more weight rope J can withstand before breaking and we cannot tell<\/u><\/strong> how much weight rope J can hold before breaking!<\/p>\n

    \"\"<\/p>\n

    \"\"<\/p>\n

    After analysing rope J, let\u2019s take a look at rope K.<\/p>\n

    Rope K<\/strong><\/p>\n

    As seen from the diagram below, rope K broke when a 150 kg mass was hung on it. This shows that rope K is not strong enough to withstand 150 kg of weights.<\/p>\n

    On top of this, we can also conclude that rope K definitely<\/u><\/strong> CANNOT<\/strong><\/u> withstand a mass that is 150 kg or more<\/strong> without breaking.<\/p>\n

    \"\"<\/p>\n

    However, from the piece of information above, are we able to tell the maximum weight<\/u><\/strong> that rope K can withstand before breaking? No, it is impossible to tell!<\/strong><\/p>\n

    Maybe rope K could withstand a mass of 149 kg\u2026? Maybe rope K breaks when a mass of 1 kg was hung on it\u2026? We cannot tell!<\/strong><\/p>\n

    \"\"<\/p>\n

    \"\"<\/p>\n

    From the analysis that we have done for ropes J and K above, here is a summary table that depicts the range of mass that ropes J and K can\/cannot hold without breaking.<\/p>\n\n\n\n\n\n\n
    J<\/strong><\/td>\nK<\/strong><\/td>\nL<\/strong><\/td>\nM<\/strong><\/td>\n<\/tr>\n
    \"\"<\/td>\n\"\"<\/td>\n\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
    Able to hold up to 50 kg<\/strong> without breaking<\/td>\nDefinitely unable to <\/strong>hold weights that are 150 kg and above<\/strong><\/td>\n?<\/td>\n?<\/td>\n<\/tr>\n
    We are unable to tell<\/strong> the exact maximum weight each rope can hold without breaking!<\/td>\n?<\/td>\n?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    With this, I would like you to try and think of the range of mass that rope L and rope M can\/ cannot hold without breaking and see if it tallies with my answer below! \ud83d\ude42<\/p>\n\n\n\n\n\n\n
    J<\/strong><\/td>\nK<\/strong><\/td>\nL<\/strong><\/td>\nM<\/strong><\/td>\n<\/tr>\n
    \"\"<\/td>\n\"\"<\/td>\n\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
    Able to hold up to 50 kg<\/strong> without breaking<\/td>\nDefinitely unable to <\/strong>hold weights that are 150 kg and above<\/strong><\/td>\nDefinitely unable to <\/strong>hold weights that are 40 kg and above<\/strong><\/td>\nAble to hold up to 150 kg<\/strong> without breaking<\/td>\n<\/tr>\n
    We are unable to tell<\/strong> the exact maximum weight each rope can hold without breaking!<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Now that you have understood the range of mass that each rope can\/cannot hold without breaking, let\u2019s look at the statements given in the question to find out which statement(s) is\/are definitely<\/strong> true.<\/p>\n

    \"\"<\/p>\n

    Source: CHIJ St. Nicholas Girls’ School \u2013 2019 P6 Preliminary Examination Paper [Q20]<\/em><\/p>\n

    Analysis Of Statement A<\/h2>\n

    \u201cStatement A: Material L is the weakest.\u201d<\/em><\/strong><\/p>\n

    Many students tend to choose statement A as one of the correct statements and this is their thought process:<\/p>\n

    \u201cSince the mass placed on the rope made of material L is the lightest<\/strong> and the <\/em>rope made of material L broke<\/strong>, this means that material L is the weakest<\/strong> and statement A is definitely<\/strong> true.\u201d<\/em><\/p>\n

    Do you agree with the above claim? The above claim is actually\u2026 wrong! Let\u2019s compare the rope made of material L to the other 3 ropes to find out why!<\/p>\n

    Comparing ropes made of materials L, J and M<\/u><\/p>\n

    \"\"<\/p>\n

    From the above illustration, we can see that the rope made of material L cannot withstand the mass of 40 kg and broke. This is unlike the ropes made of materials J and M, which were able to withstand a mass of 50 kg and 150 kg respectively and did not break as a result. Thus, we can conclude that material L is indeed weaker than materials J and M.<\/p>\n

    Comparing ropes made of materials L and K<\/u><\/p>\n

    \"\"<\/p>\n

    From the above illustration, we can see that both ropes made of materials L and K broke when a mass of 40 kg and 150 kg were placed on them respectively. But the catch here is that it is unknown which exact weight will cause material K to break.<\/p>\n

    Maybe it\u2019s 30 kg<\/strong>\u2026? Maybe it\u2019s 145 kg<\/strong>\u2026?<\/p>\n

    As such, we are unable to tell if material L or material K is the weakest of them all and statement A is not definitely true<\/u><\/strong>.<\/p>\n

    Analysis Of Statement B<\/h2>\n

    \u201cStatement B: Material M is the strongest.\u201d<\/em><\/strong><\/p>\n

    Similar to statement A above, I noticed that many students also tend to choose statement B as one of the correct statements and this is their thought process:<\/p>\n

    \u201cSince the mass placed on the rope made of material M is the heaviest<\/strong> and the<\/em>\u00a0rope made of material M did not break<\/strong>, this shows that material M is the strongest<\/strong> and statement B is also definitely<\/strong> true.\u201d<\/em><\/p>\n

    Do you agree with the above claim too? The above claim is actually also\u2026 wrong! Let\u2019s compare the rope made of material M to each of the other 3 ropes to find out why!<\/p>\n

    Comparing ropes made of materials K, L and M<\/u><\/p>\n

    \"\"<\/p>\n

    From the above illustration, we can see that the rope made of material M was able to withstand a mass of 150 kg without breaking. This is unlike the ropes made of materials L and K, which cannot withstand a mass of 40 kg and 150 kg respectively and broke as a result. Thus, we can conclude that material M is indeed stronger than materials L and K.<\/p>\n

    Comparing ropes made of material J and M<\/u><\/p>\n

    \"\"<\/p>\n

    From the above illustration, we can see that both ropes made of materials J and M were able to withstand a mass of 50 kg and 150 kg respectively as they did not break. But it is unknown if material J can withstand a mass of more than 150 kg without breaking.<\/p>\n

    Maybe material J can withstand 200 kg<\/strong>\u2026?<\/p>\n

    Maybe material J can only withstand 100 kg<\/strong>\u2026?<\/p>\n

    As such, we are unable to tell if material J or material M is the strongest of them all and statement B is not definitely true<\/u><\/strong>.<\/p>\n

    Analysis Of Statement C<\/h2>\n

    \u201cStatement C: Material J is stronger than material L.\u201d<\/em><\/strong><\/p>\n

    Comparing ropes made of materials J and L<\/u><\/p>\n

    \"\"<\/p>\n

    From the above illustration, we can see that material L broke even though a lighter<\/u><\/strong> (40 kg) mass was placed on it while material J remained unbroken even though a heavier<\/u><\/strong> (50 kg) mass was placed on it. Thus, we can conclude that material L is weaker than material J and statement C is definitely true<\/u><\/strong>.<\/p>\n

    Analysis Of Statement D<\/h2>\n

    \u201cStatement D: Material K is weaker than material M.\u201d<\/u><\/em><\/strong><\/p>\n

    Comparing ropes made of materials K and M<\/u><\/p>\n

    \"\"<\/p>\n

    From the above illustration, we can see that when the same mass of 150 kg was placed on both materials K and M, material K broke while material M did not break. This shows that material K was unable to withstand a mass of 150 kg but material M was able to withstand a mass of 150 kg. Thus, we can conclude that material K is indeed weaker than material M and statement D is definitely true<\/u><\/strong>.<\/p>\n

    \"\"<\/p>\n

    Source: CHIJ St. Nicholas Girls’ School \u2013 2019 P6 Preliminary Examination Paper [Q20]<\/em><\/p>\n

    Since only statements C and D are definitely true<\/u><\/strong>, the answer for this question is option (2)<\/strong>.<\/p>\n

    Suggested Answer<\/strong><\/h2>\n

    Option (2).<\/p>\n

    Key Takeaway<\/strong><\/h2>\n

    If a paper<\/strong> strip did not break<\/strong> when you hang a mass of 1 kg<\/strong> on it but a similar-sized metal<\/strong> strip broke<\/strong> when you hang a mass of 100 kg<\/strong> on it, this does not mean<\/strong> that the paper strip is stronger than the metal strip!<\/p>\n

    \"\"<\/p>\n

    Do stay tuned and keep a look out for more new articles coming your way! \ud83d\ude42<\/p>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=”CCI” _builder_version=”3.25″ custom_margin=”0px||” custom_padding=”0px||” global_module=”239753″ saved_tabs=”all” collapsed=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_divider color=”#898989″ admin_label=”Divider” _builder_version=”4.16″ locked=”off” global_colors_info=”{}”][\/et_pb_divider][et_pb_image src=”https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2019\/05\/The-Pique-Lab-CCI-Science-Course-CTA.png” align=”center” align_tablet=”center” align_phone=”” align_last_edited=”on|desktop” admin_label=”CCI” _builder_version=”4.16″ z_index_tablet=”500″ global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.16″ text_font=”||||||||” text_text_color=”#333333″ text_font_size=”18px” text_orientation=”center” global_colors_info=”{}”]<\/p>\n

    If you like our methodology, we’ve some upcoming workshops:<\/p>\n

    [\/et_pb_text][et_pb_text _builder_version=”4.16″ text_font=”geomanist-medium||||||||” text_text_color=”#f44a4a” text_font_size=”18px” text_line_height=”2em” text_orientation=”center” global_colors_info=”{}”]<\/p>\n

    P3 Complete Concept Integration\u2122 Science Course<\/strong><\/a>
    P4 Complete Concept Integration\u2122 Science Course<\/strong><\/a>
    P5 Complete Concept Integration\u2122 Science Course<\/strong><\/a>
    P6 Complete Concept Integration\u2122 Science Course<\/strong><\/a><\/p>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

    <\/p>\n","protected":false},"author":8,"featured_media":243141,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","om_disable_all_campaigns":false,"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[50,42,23,6,3,47],"tags":[],"post_folder":[],"modified_by":"Jomari Guiao","_links":{"self":[{"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/posts\/243081"}],"collection":[{"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/comments?post=243081"}],"version-history":[{"count":41,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/posts\/243081\/revisions"}],"predecessor-version":[{"id":243306,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/posts\/243081\/revisions\/243306"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/media\/243141"}],"wp:attachment":[{"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/media?parent=243081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/categories?post=243081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/tags?post=243081"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/post_folder?post=243081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}