Active Science-4:@0.715959:0.974382:0.852434:0.974382:0.852434:0.957785:0.715959:0.957785:0.013067:0.008070:0.007082:0.005752:0.009742:0.009077:0.005087:0.011413:0.008070:0.005752:0.009077:0.011072:0.008070:0.009077:0.006075:0.009993 •:@0.071895:0.066449:0.084768:0.066449:0.084768:0.046835:0.071895:0.046835:0.012873 Frictional force always opposes the motion of one surface across another surface.:@0.084873:0.066449:0.895589:0.066449:0.895589:0.046835:0.084873:0.046835:0.005905:0.005629:0.014275:0.009538:0.006797:0.009538:0.008369:0.006797:0.010727:0.013085:0.011917:0.006797:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.006011:0.011917:0.006797:0.016632:0.011917:0.011513:0.009941:0.006011:0.010727:0.012299:0.012299:0.010727:0.009941:0.010727:0.009941:0.006011:0.008369:0.013085:0.010727:0.006011:0.018990:0.010727:0.008369:0.006797:0.010727:0.013085:0.006011:0.010727:0.007180:0.006011:0.010727:0.013085:0.010727:0.006011:0.009941:0.013085:0.009538:0.007180:0.011917:0.009538:0.010727:0.006011:0.011917:0.009538:0.009538:0.010727:0.009941:0.009941:0.006011:0.011917:0.013085:0.010727:0.008369:0.013085:0.010727:0.009538:0.006011:0.009941:0.013085:0.009538:0.007180:0.011917:0.009538:0.010727:0.005905 •:@0.071895:0.091449:0.084768:0.091449:0.084768:0.071835:0.071895:0.071835:0.012873 Muscular force is the force applied using parts of the body like arms, legs, etc.:@0.084873:0.091449:0.868081:0.091449:0.868081:0.071835:0.084873:0.071835:0.005905:0.005629:0.020158:0.013085:0.009941:0.009538:0.013085:0.006797:0.011917:0.009538:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.006011:0.006797:0.009941:0.006011:0.008369:0.013085:0.010727:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.006011:0.011917:0.012299:0.012299:0.006797:0.006797:0.010727:0.012299:0.006011:0.013085:0.009941:0.006797:0.013085:0.011513:0.006011:0.012299:0.011917:0.009538:0.008369:0.009941:0.006011:0.010727:0.007180:0.006011:0.008369:0.013085:0.010727:0.006011:0.011917:0.010727:0.012299:0.011513:0.006011:0.006797:0.006797:0.012703:0.010727:0.006011:0.011917:0.009538:0.018990:0.009941:0.006011:0.006011:0.006797:0.010727:0.011513:0.009941:0.006011:0.006011:0.010727:0.008369:0.009538:0.005905 •:@0.071895:0.116449:0.084768:0.116449:0.084768:0.096835:0.071895:0.096835:0.012873 When an object moves by applying force, it is called work. When an object does not :@0.084873:0.116449:0.932250:0.116449:0.932250:0.096835:0.084873:0.096835:0.005905:0.005629:0.020944:0.013085:0.010727:0.013085:0.006819:0.011917:0.013085:0.006819:0.010727:0.011917:0.006394:0.010727:0.009538:0.008369:0.006819:0.018990:0.010727:0.011513:0.010727:0.009941:0.006819:0.011917:0.011513:0.006819:0.011917:0.012299:0.012299:0.006797:0.011513:0.006797:0.013085:0.011513:0.006819:0.007180:0.010727:0.009538:0.009538:0.010727:0.006011:0.006819:0.006797:0.008369:0.006819:0.006797:0.009941:0.006819:0.009538:0.011917:0.006797:0.006797:0.010727:0.012299:0.006819:0.016632:0.010727:0.009538:0.012703:0.006011:0.006819:0.020944:0.013085:0.010727:0.013085:0.006819:0.011917:0.013085:0.006819:0.010727:0.011917:0.006394:0.010727:0.009538:0.008369:0.006819:0.012299:0.010727:0.010727:0.009941:0.006819:0.013085:0.010727:0.008261:0.005905 move by applying force, then no work is done.:@0.096405:0.139177:0.547985:0.139177:0.547985:0.119562:0.096405:0.119562:0.018990:0.010727:0.011513:0.010727:0.006011:0.011917:0.011513:0.006011:0.011917:0.012299:0.012299:0.006797:0.011513:0.006797:0.013085:0.011513:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.006011:0.006011:0.008369:0.013085:0.010727:0.013085:0.006011:0.013085:0.010727:0.006011:0.016632:0.010727:0.009538:0.012703:0.006011:0.006797:0.009941:0.006011:0.012299:0.010727:0.013085:0.010727:0.005905 •:@0.071895:0.164177:0.084768:0.164177:0.084768:0.144562:0.071895:0.144562:0.012873 Machines have made our life easier.:@0.084873:0.164177:0.453292:0.164177:0.453292:0.144562:0.084873:0.144562:0.005905:0.005629:0.020158:0.011917:0.009538:0.013085:0.006797:0.013085:0.010727:0.009941:0.006011:0.013085:0.011917:0.011513:0.010727:0.006011:0.018990:0.011917:0.012299:0.010727:0.006011:0.010727:0.013085:0.009538:0.006011:0.006797:0.006797:0.007180:0.010727:0.006011:0.010727:0.011917:0.009941:0.006797:0.010727:0.009538:0.005905 •:@0.071895:0.190439:0.084768:0.190439:0.084768:0.170824:0.071895:0.170824:0.012873 To perform any work, we need energy.:@0.084873:0.190439:0.475823:0.190439:0.475823:0.170824:0.084873:0.170824:0.005905:0.005629:0.014275:0.010727:0.006011:0.012299:0.010727:0.009538:0.007180:0.010727:0.009538:0.018990:0.006011:0.011917:0.013085:0.011513:0.006011:0.016632:0.010727:0.009538:0.012703:0.006011:0.006011:0.016647:0.010727:0.006011:0.013085:0.010727:0.010727:0.012299:0.006011:0.010727:0.013085:0.010727:0.009538:0.011513:0.011513:0.005905 Glossary :@0.058824:0.246830:0.170486:0.246830:0.170486:0.224475:0.058824:0.224475:0.018719:0.007556:0.016105:0.011634:0.011634:0.014196:0.010536:0.014068:0.007216 :@0.058824:0.274278:0.064729:0.274278:0.064729:0.254663:0.058824:0.254663:0.005905 •:@0.096499:0.274278:0.109372:0.274278:0.109372:0.254663:0.096499:0.254663:0.012873 :@0.109477:0.274278:0.115382:0.274278:0.115382:0.254663:0.109477:0.254663:0.005905 Machines :@0.119281:0.276165:0.231629:0.276165:0.231629:0.254532:0.119281:0.254532:0.020944:0.013085:0.011917:0.014657:0.007966:0.014657:0.012299:0.010727:0.006096 : :@0.352941:0.276165:0.371252:0.276165:0.371252:0.254532:0.352941:0.254532:0.006011:0.006203:0.006096 Devices which have made our life easy.:@0.375817:0.274278:0.762930:0.274278:0.762930:0.254663:0.375817:0.254663:0.016632:0.010727:0.011513:0.006797:0.009538:0.010727:0.009943:0.006011:0.016632:0.013085:0.006797:0.009538:0.013085:0.006011:0.013085:0.011917:0.011513:0.010727:0.006011:0.018990:0.011917:0.012299:0.010727:0.006011:0.010727:0.013085:0.009538:0.006011:0.006797:0.006797:0.007180:0.010727:0.006011:0.010727:0.011917:0.009941:0.011513:0.005905 :@0.058824:0.300212:0.064729:0.300212:0.064729:0.280597:0.058824:0.280597:0.005905 • :@0.096500:0.300212:0.115384:0.300212:0.115384:0.280597:0.096500:0.280597:0.012979:0.005905 Energy:@0.119281:0.302100:0.199660:0.302100:0.199660:0.280466:0.119281:0.280466:0.016229:0.014657:0.012299:0.011131:0.013085:0.012979 ::@0.352941:0.302100:0.358846:0.302100:0.358846:0.280466:0.352941:0.280466:0.005905 It is the ability to perform work.:@0.375817:0.300212:0.695634:0.300212:0.695634:0.280597:0.375817:0.280597:0.008752:0.008369:0.006011:0.006797:0.009941:0.006011:0.008369:0.013085:0.010727:0.006011:0.011917:0.011917:0.006797:0.006797:0.006797:0.008369:0.011513:0.006011:0.008369:0.010727:0.006011:0.012299:0.010727:0.009538:0.007180:0.010727:0.009538:0.018990:0.006011:0.016632:0.010727:0.009538:0.012703:0.005905 :@0.058824:0.326146:0.064729:0.326146:0.064729:0.306531:0.058824:0.306531:0.005905 • :@0.096500:0.326146:0.115384:0.326146:0.115384:0.306531:0.096500:0.306531:0.012979:0.005905 Solar energy :@0.119281:0.328034:0.267294:0.328034:0.267294:0.306400:0.119281:0.306400:0.014275:0.013085:0.007583:0.013085:0.011131:0.006203:0.012299:0.014657:0.012299:0.011131:0.013085:0.013085:0.006096 : :@0.352941:0.328034:0.365049:0.328034:0.365049:0.306400:0.352941:0.306400:0.006011:0.006096 Energy generated from the sun.:@0.375817:0.326146:0.691216:0.326146:0.691216:0.306531:0.375817:0.306531:0.015443:0.013085:0.010727:0.009538:0.011513:0.011513:0.006011:0.011513:0.010727:0.013085:0.010727:0.009538:0.011917:0.008369:0.010727:0.012299:0.006011:0.007180:0.009538:0.010727:0.018990:0.006011:0.008369:0.013085:0.010727:0.006011:0.009941:0.013085:0.013085:0.005905 :@0.058824:0.352081:0.064729:0.352081:0.064729:0.332466:0.058824:0.332466:0.005905 • :@0.096500:0.352081:0.115384:0.352081:0.115384:0.332466:0.096500:0.332466:0.012979:0.005905 Wind energy :@0.119281:0.353968:0.265977:0.353968:0.265977:0.332335:0.119281:0.332335:0.020944:0.007966:0.014657:0.014275:0.006203:0.012299:0.014657:0.012299:0.011131:0.013085:0.013085:0.006096 : :@0.352941:0.353968:0.365049:0.353968:0.365049:0.332335:0.352941:0.332335:0.006011:0.006096 Energy generated from blowing wind.:@0.375817:0.352081:0.749206:0.352081:0.749206:0.332466:0.375817:0.332466:0.015443:0.013085:0.010727:0.009538:0.011513:0.011513:0.006011:0.011513:0.010727:0.013085:0.010727:0.009538:0.011917:0.008369:0.010727:0.012299:0.006011:0.007180:0.009538:0.010727:0.018990:0.006011:0.011917:0.006797:0.010727:0.016632:0.006797:0.013085:0.011513:0.006011:0.016632:0.006797:0.013085:0.012299:0.005905 :@0.058824:0.378015:0.064729:0.378015:0.064729:0.358400:0.058824:0.358400:0.005905 • :@0.096500:0.378015:0.115384:0.378015:0.115384:0.358400:0.096500:0.358400:0.012979:0.005905 Geothermal energy : :@0.119281:0.379903:0.365049:0.379903:0.365049:0.358269:0.119281:0.358269:0.017801:0.012299:0.013085:0.009155:0.014657:0.012299:0.011131:0.020562:0.013085:0.007583:0.006203:0.012299:0.014657:0.012299:0.011131:0.013085:0.013085:0.006096:0.013149:0.006011:0.006096 Energy generated from the hot springs.:@0.375817:0.378015:0.766427:0.378015:0.766427:0.358400:0.375817:0.358400:0.015443:0.013085:0.010727:0.009538:0.011513:0.011513:0.006011:0.011513:0.010727:0.013085:0.010727:0.009538:0.011917:0.008369:0.010727:0.012299:0.006011:0.007180:0.009538:0.010727:0.018990:0.006011:0.008369:0.013085:0.010727:0.006027:0.013085:0.010727:0.008369:0.006011:0.009941:0.012299:0.009538:0.006797:0.013085:0.011513:0.009941:0.005905 Practice Time:@0.058824:0.450548:0.231286:0.450548:0.231286:0.428550:0.058824:0.428550:0.016183:0.012784:0.014735:0.013935:0.012207:0.007430:0.013935:0.014510:0.005882:0.016444:0.008105:0.021882:0.014431 :@0.058824:0.482428:0.064920:0.482428:0.064920:0.460794:0.058824:0.460794:0.006096 A. Tick the correct option.:@0.088243:0.482428:0.380743:0.482428:0.380743:0.460794:0.088243:0.460794:0.016229:0.006011:0.007180:0.015443:0.007966:0.011917:0.014275:0.006203:0.009155:0.014657:0.012299:0.006203:0.011917:0.013085:0.011131:0.011131:0.012299:0.011917:0.009155:0.006203:0.013085:0.014275:0.009155:0.007966:0.013085:0.014657:0.005905 1.:@0.091557:0.506601:0.109379:0.506601:0.109379:0.486986:0.091557:0.486986:0.011917:0.005905 Pull or push refers to _____________.:@0.119281:0.506601:0.481082:0.506601:0.481082:0.486986:0.119281:0.486986:0.014275:0.013085:0.006797:0.006797:0.006011:0.010727:0.009538:0.006011:0.012303:0.013085:0.009941:0.013085:0.006011:0.009538:0.010727:0.007180:0.010727:0.009538:0.009941:0.006011:0.008369:0.010732:0.006013:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.005905 :@0.058824:0.531904:0.064729:0.531904:0.064729:0.512289:0.058824:0.512289:0.005905 a. force :@0.109477:0.531904:0.196840:0.531904:0.196840:0.512289:0.109477:0.512289:0.005905:0.003896:0.011917:0.006011:0.006011:0.007180:0.010727:0.009538:0.009538:0.010736:0.005905 :@0.352946:0.531904:0.358852:0.531904:0.358852:0.512289:0.352946:0.512289:0.005905 b. energy:@0.557187:0.531904:0.648123:0.531904:0.648123:0.512289:0.557187:0.512289:0.011917:0.006011:0.006011:0.010727:0.013085:0.010727:0.009538:0.011513:0.011407 :@0.058824:0.555692:0.064729:0.555692:0.064729:0.536077:0.058824:0.536077:0.005905 c. friction :@0.109477:0.555692:0.218783:0.555692:0.218783:0.536077:0.109477:0.536077:0.005905:0.003896:0.009538:0.006011:0.006011:0.007180:0.009538:0.006797:0.009538:0.008369:0.006797:0.010735:0.013085:0.005905 :@0.352946:0.555692:0.358851:0.555692:0.358851:0.536077:0.352946:0.536077:0.005905 d. work:@0.557186:0.555692:0.631002:0.555692:0.631002:0.536077:0.557186:0.536077:0.012299:0.006011:0.006011:0.016632:0.010727:0.009538:0.012596 :@0.058824:0.581752:0.064729:0.581752:0.064729:0.562137:0.058824:0.562137:0.005905 2. Two surfaces have to be in contact in case of _____________.:@0.091557:0.581752:0.708586:0.581752:0.708586:0.562137:0.091557:0.562137:0.011917:0.006011:0.005905:0.003908:0.014275:0.016632:0.010727:0.006011:0.009941:0.013085:0.009538:0.007180:0.011917:0.009538:0.010727:0.009941:0.006011:0.013085:0.011917:0.011513:0.010727:0.006011:0.008369:0.010727:0.006011:0.011917:0.010727:0.006011:0.006797:0.013085:0.006011:0.009538:0.010727:0.013085:0.008369:0.011917:0.009538:0.008369:0.006011:0.006797:0.013085:0.006011:0.009538:0.011917:0.009941:0.010727:0.006011:0.010727:0.007180:0.006008:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.005905 :@0.058824:0.607813:0.064729:0.607813:0.064729:0.588198:0.058824:0.588198:0.005905 a. frictional force :@0.109477:0.607813:0.293588:0.607813:0.293588:0.588198:0.109477:0.588198:0.005905:0.003896:0.011917:0.006011:0.006011:0.007180:0.009538:0.006797:0.009538:0.008369:0.006797:0.010727:0.013085:0.011917:0.006797:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.005905 :@0.352932:0.607813:0.358837:0.607813:0.358837:0.588198:0.352932:0.588198:0.005905 b. gravitational force:@0.557178:0.607813:0.763989:0.607813:0.763989:0.588198:0.557178:0.588198:0.011917:0.006011:0.006011:0.011513:0.009538:0.011917:0.011513:0.006797:0.008369:0.011917:0.008369:0.006797:0.010727:0.013085:0.011917:0.006797:0.006011:0.007180:0.010727:0.009538:0.009538:0.010621 :@0.058824:0.633874:0.064729:0.633874:0.064729:0.614259:0.058824:0.614259:0.005905 c. muscular force :@0.109477:0.633874:0.293355:0.633874:0.293355:0.614259:0.109477:0.614259:0.005905:0.003896:0.009538:0.006011:0.006011:0.018990:0.013085:0.009941:0.009538:0.013085:0.006797:0.011917:0.009538:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.005905 :@0.352927:0.633874:0.358833:0.633874:0.358833:0.614259:0.352927:0.614259:0.005905 d. energy:@0.557178:0.633874:0.648497:0.633874:0.648497:0.614259:0.557178:0.614259:0.012299:0.006011:0.006011:0.010727:0.013085:0.010727:0.009538:0.011513:0.011407 :@0.058824:0.658924:0.064729:0.658924:0.064729:0.639309:0.058824:0.639309:0.005905 3. If we throw an object upwards, it always falls back on earth due to _____________.:@0.091557:0.658924:0.926469:0.658924:0.926469:0.639309:0.091557:0.639309:0.011917:0.006011:0.005905:0.003908:0.008752:0.007180:0.005757:0.016632:0.010727:0.005757:0.008369:0.013085:0.009538:0.010727:0.016632:0.005757:0.011917:0.013085:0.005757:0.010727:0.011917:0.006394:0.010727:0.009538:0.008369:0.005757:0.013085:0.012299:0.016632:0.011917:0.009538:0.012299:0.009941:0.006011:0.005757:0.006797:0.008369:0.005757:0.011917:0.006797:0.016632:0.011917:0.011513:0.009941:0.005757:0.007180:0.011917:0.006797:0.006797:0.009941:0.005757:0.011917:0.011917:0.009538:0.012703:0.005757:0.010727:0.013085:0.005757:0.010727:0.011917:0.009538:0.008369:0.013085:0.005757:0.012299:0.013085:0.010727:0.005757:0.008369:0.010727:0.005694:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.005905 :@0.058823:0.684985:0.064729:0.684985:0.064729:0.665370:0.058823:0.665370:0.005905 a. frictional force :@0.109477:0.684985:0.293588:0.684985:0.293588:0.665370:0.109477:0.665370:0.005905:0.003896:0.011917:0.006011:0.006011:0.007180:0.009538:0.006797:0.009538:0.008369:0.006797:0.010727:0.013085:0.011917:0.006797:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.005905 :@0.352931:0.684985:0.358837:0.684985:0.358837:0.665370:0.352931:0.665370:0.005905 b. gravitational force :@0.557178:0.684985:0.770597:0.684985:0.770597:0.665370:0.557178:0.665370:0.011917:0.006011:0.006011:0.011513:0.009538:0.011917:0.011513:0.006797:0.008369:0.011917:0.008369:0.006797:0.010727:0.013085:0.011917:0.006797:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.000597:0.005905 :@0.058823:0.711045:0.064729:0.711045:0.064729:0.691431:0.058823:0.691431:0.005905 c. muscular force :@0.109477:0.711045:0.293354:0.711045:0.293354:0.691431:0.109477:0.691431:0.005905:0.003896:0.009538:0.006011:0.006011:0.018990:0.013085:0.009941:0.009538:0.013085:0.006797:0.011917:0.009538:0.006011:0.007180:0.010727:0.009538:0.009538:0.010727:0.005905 :@0.352927:0.711045:0.358832:0.711045:0.358832:0.691431:0.352927:0.691431:0.005905 d. work:@0.557178:0.711045:0.630993:0.711045:0.630993:0.691431:0.557178:0.691431:0.012299:0.006011:0.006011:0.016632:0.010727:0.009538:0.012596 :@0.058823:0.736096:0.064729:0.736096:0.064729:0.716481:0.058823:0.716481:0.005905 4. Our life is made easier by _____________.:@0.091557:0.736096:0.525214:0.736096:0.525214:0.716481:0.091557:0.716481:0.011917:0.006011:0.005905:0.003908:0.016632:0.013085:0.009538:0.006011:0.006797:0.006797:0.007180:0.010727:0.006011:0.006797:0.009941:0.006011:0.018990:0.011917:0.012299:0.010727:0.006011:0.010727:0.011917:0.009941:0.006797:0.010727:0.009538:0.006011:0.011917:0.011513:0.005995:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.005905 :@0.058823:0.762156:0.064729:0.762156:0.064729:0.742542:0.058823:0.742542:0.005905 a. machines :@0.109477:0.762156:0.243202:0.762156:0.243202:0.742542:0.109477:0.742542:0.005905:0.003896:0.011917:0.006011:0.006011:0.018990:0.011917:0.009538:0.013085:0.006797:0.013085:0.010727:0.009941:0.005905 :@0.352938:0.762156:0.358843:0.762156:0.358843:0.742542:0.352938:0.742542:0.005905 b. solar energy:@0.557178:0.762156:0.703046:0.762156:0.703046:0.742542:0.557178:0.742542:0.011917:0.006011:0.006011:0.009941:0.010727:0.006797:0.011917:0.009538:0.006011:0.010727:0.013085:0.010727:0.009538:0.011513:0.011407 :@0.058823:0.788217:0.064729:0.788217:0.064729:0.768602:0.058823:0.768602:0.005905 c. wind energy :@0.109477:0.788217:0.268671:0.788217:0.268671:0.768602:0.109477:0.768602:0.005905:0.003896:0.009538:0.006011:0.006011:0.016632:0.006797:0.013085:0.012299:0.006011:0.010727:0.013085:0.010727:0.009538:0.011513:0.011513:0.005905 :@0.352921:0.788217:0.358826:0.788217:0.358826:0.768602:0.352921:0.768602:0.005905 d. geothermal energy:@0.557178:0.788217:0.766899:0.788217:0.766899:0.768602:0.557178:0.768602:0.012299:0.006011:0.006011:0.011513:0.010727:0.010727:0.008369:0.013085:0.010727:0.009538:0.018990:0.011917:0.006797:0.006011:0.010727:0.013085:0.010727:0.009538:0.011513:0.011407 :@0.058823:0.822933:0.064920:0.822933:0.064920:0.801299:0.058823:0.801299:0.006096 B. Fill in the blanks.:@0.088243:0.822933:0.313683:0.822933:0.313683:0.801299:0.088243:0.801299:0.016632:0.006011:0.006776:0.015443:0.007966:0.007583:0.007583:0.006203:0.007966:0.014657:0.006203:0.009155:0.014657:0.012299:0.006203:0.013871:0.007583:0.013085:0.014657:0.014275:0.010727:0.005905 :@0.058823:0.847106:0.064729:0.847106:0.064729:0.827491:0.058823:0.827491:0.005905 1. Smooth surfaces offer _____________.:@0.091557:0.847106:0.485275:0.847106:0.485275:0.827491:0.091557:0.827491:0.011917:0.006011:0.005905:0.003908:0.013489:0.018990:0.010727:0.010727:0.008369:0.013085:0.005991:0.009941:0.013085:0.009538:0.007180:0.011917:0.009538:0.010727:0.009941:0.006011:0.010727:0.007180:0.007180:0.010727:0.009538:0.006011:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.005905 :@0.058823:0.872409:0.064729:0.872409:0.064729:0.852794:0.058823:0.852794:0.005905 2. The ability to do work is called _____________. :@0.091557:0.872409:0.581375:0.872409:0.581375:0.852794:0.091557:0.852794:0.011917:0.006011:0.005905:0.003908:0.014275:0.013085:0.010727:0.006011:0.011917:0.011917:0.006797:0.006797:0.006797:0.008369:0.011513:0.006011:0.008369:0.010727:0.006011:0.012299:0.010727:0.006011:0.016632:0.010727:0.009538:0.012703:0.006011:0.006797:0.009941:0.006011:0.009538:0.011917:0.006797:0.006797:0.010727:0.012299:0.006011:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.005907:0.005905 :@0.058823:0.897712:0.064729:0.897712:0.064729:0.878097:0.058823:0.878097:0.005905 3. Sun is the source of _____________. :@0.091557:0.897712:0.470660:0.897712:0.470660:0.878097:0.091557:0.878097:0.011917:0.006011:0.005905:0.003908:0.013489:0.013085:0.013085:0.006011:0.006797:0.009941:0.006011:0.008369:0.013085:0.010727:0.006011:0.009941:0.010727:0.013085:0.009538:0.009538:0.010727:0.006011:0.010727:0.007180:0.006011:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.005905:0.005905 :@0.058823:0.923773:0.064729:0.923773:0.064729:0.904158:0.058823:0.904158:0.005905 4. The energy we get from the sun rays is called _____________.:@0.091557:0.923773:0.720376:0.923773:0.720376:0.904158:0.091557:0.904158:0.011917:0.006011:0.005905:0.003908:0.014275:0.013085:0.010727:0.006011:0.010727:0.013085:0.010727:0.009538:0.011513:0.011513:0.006011:0.016629:0.010727:0.006011:0.011513:0.010727:0.008369:0.006011:0.007180:0.009538:0.010727:0.018990:0.006011:0.008369:0.013085:0.010727:0.006011:0.009941:0.013085:0.013085:0.006011:0.009538:0.011917:0.011513:0.009941:0.006011:0.006797:0.009941:0.006011:0.009538:0.011917:0.006797:0.006797:0.010727:0.012299:0.006011:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.010727:0.005905 129:@0.896315:0.967768:0.926475:0.967768:0.926475:0.951170:0.896315:0.951170:0.010083:0.010083:0.009993