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#strings for the wheel topic---- TOPIC_NAME Friction TOPIC_CATEGORY Forces 0 TOPIC_HEADING Friction TOPIC_RADIOU1 rdata.rle TOPIC_RADIOD1 rdata.rle TOPIC_RADIOU2 rmicroscope.rle TOPIC_RADIOD2 rmicroscope.rle TOPIC_RADIOU3 rearth.rle TOPIC_RADIOD3 rearth.rle TOPIC_IMAGENAME1 RImageArea.rle TOPIC_STRIPLEFT 35 TOPIC_STRIPTOP 97 TOPIC_STRIPRIGHT 226 TOPIC_STRIPBOTTTOM 100 TOPIC_NUMHYPQUEST 3 TOPIC_HEAD_COUNT 1 TOPIC_SECTLEFT 30 TOPIC_SECTTOP 102 TOPIC_SECTRIGHT 225 TOPIC_SECTBOTTOM 138 D_TOPIC_SECTLEFT 118 D_TOPIC_SECTTOP 102 D_TOPIC_SECTRIGHT 399 D_TOPIC_SECTBOTTOM 138 E_TOPIC_SECTLEFT 44 E_TOPIC_SECTTOP 102 E_TOPIC_SECTRIGHT 239 E_TOPIC_SECTBOTTOM 138 INQUIRY_RIBBON1_LEFT 35 INQUIRY_RIBBON1_TOP 137 INQUIRY_RIBBON1_RIGHT 226 INQUIRY_RIBBON1_BOTTOM 157 INQUIRY_RIBBON2_LEFT 35 INQUIRY_RIBBON2_TOP 160 INQUIRY_RIBBON2_RIGHT 226 INQUIRY_RIBBON2_BOTTOM 180 INQUIRY_RIBBON3_LEFT 35 INQUIRY_RIBBON3_TOP 183 INQUIRY_RIBBON3_RIGHT 226 INQUIRY_RIBBON3_BOTTOM 203 INQUIRY_RIBBON4_LEFT 35 INQUIRY_RIBBON4_TOP 206 INQUIRY_RIBBON4_RIGHT 226 INQUIRY_RIBBON4_BOTTOM 226 INQUIRY_RIBBON5_LEFT 35 INQUIRY_RIBBON5_TOP 229 INQUIRY_RIBBON5_RIGHT 226 INQUIRY_RIBBON5_BOTTOM 249 INQUIRY_HYPQUEST1_LEFT 50 INQUIRY_HYPQUEST1_TOP 141 INQUIRY_HYPQUEST1_RIGHT 223 INQUIRY_HYPQUEST1_BOTTOM 157 INQUIRY_HYPQUEST2_LEFT 50 INQUIRY_HYPQUEST2_TOP 164 INQUIRY_HYPQUEST2_RIGHT 223 INQUIRY_HYPQUEST2_BOTTOM 180 INQUIRY_HYPQUEST3_LEFT 50 INQUIRY_HYPQUEST3_TOP 187 INQUIRY_HYPQUEST3_RIGHT 223 INQUIRY_HYPQUEST3_BOTTOM 203 INQUIRY_HYPQUEST4_LEFT 40 INQUIRY_HYPQUEST4_TOP 210 INQUIRY_HYPQUEST4_RIGHT 223 INQUIRY_HYPQUEST4_BOTTOM 226 INQUIRY_HYPQUEST5_LEFT 40 INQUIRY_HYPQUEST5_TOP 233 INQUIRY_HYPQUEST5_RIGHT 223 INQUIRY_HYPQUEST5_BOTTOM 249 TOPIC_HYPQUEST1 How do different TOPIC_HYPQUEST2 surfaces produce TOPIC_HYPQUEST3 friction? O_TEXTBLOCK_TEXT When glass rubs against glass, a very small amount of friction is produced, since their surfaces are smooth. Notice that when wood or rubber rubs against glass, wood, or rubber, more friction is produced. The bumps and holes of both surfaces catch on the bumps and holes of other surfaces, and there is <HL Topic=Resistance.tpc>RESISTANCE</HL> to <HL Topic=Motion.tpc>MOTION</HL>. E_QUEST1 What would happen if there were no friction between a car's wheels and the road? E_QUEST2 What happens to the soles of your shoes after you have worn the same pair for a long time? How is this related to friction? E_QUEST3 Why is it easier to ride your bicycle after you have greased the chain? How is this related to friction? D_TEXTBLOCK_TEXT Whenever the surfaces of two materials rub against one another, the <HL Topic=Resistance.tpc>RESISTANCE</HL> to movement is called friction. <HL Topic=Energy.tpc>ENERGY</HL> is released in the form <HL Topic=Heat.tpc>HEAT</HL>. Since the surface of every material contains bumps and holes, when two surfaces rub together, the bumps and holes catch and stick together, which makes it difficult to move one material over the other. CONTROL_TYPE BILEVEL NUM_ANIMATIONS 9 ANIM1_ID 7114 ANIM1_NAME Ref_friction_wood_wood.flc ANIM1_LASTFRAME Ref_friction_wood_wood.RLE ANIM1_FIRSTFRAME Ref_friction_wood_wood.RLE ANIM2_ID 7117 ANIM2_NAME Ref_friction_wood_rubber.flc ANIM2_LASTFRAME Ref_friction_wood_rubber.RLE ANIM2_FIRSTFRAME Ref_friction_wood_rubber.RLE ANIM3_ID 7120 ANIM3_NAME Ref_friction_wood_glass.flc ANIM3_LASTFRAME Ref_friction_wood_glass.RLE ANIM3_FIRSTFRAME Ref_friction_wood_glass.RLE ANIM4_ID 7115 ANIM4_NAME Ref_friction_rubber_wood.flc ANIM4_LASTFRAME Ref_friction_rubber_wood.RLE ANIM4_FIRSTFRAME Ref_friction_rubber_wood.RLE ANIM5_ID 7118 ANIM5_NAME Ref_friction_rubber_rubber.flc ANIM5_LASTFRAME Ref_friction_rubber_rubber.RLE ANIM5_FIRSTFRAME Ref_friction_rubber_rubber.RLE ANIM6_ID 7121 ANIM6_NAME Ref_friction_rubber_glass.flc ANIM6_LASTFRAME Ref_friction_rubber_glass.RLE ANIM6_FIRSTFRAME Ref_friction_rubber_glass.RLE ANIM7_ID 7116 ANIM7_NAME Ref_friction_glass_wood.flc ANIM7_LASTFRAME Ref_friction_glass_wood.RLE ANIM7_FIRSTFRAME Ref_friction_glass_wood.RLE ANIM8_ID 7119 ANIM8_NAME Ref_friction_glass_rubber.flc ANIM8_LASTFRAME Ref_friction_glass_rubber.RLE ANIM8_FIRSTFRAME Ref_friction_glass_rubber.RLE ANIM9_ID 7122 ANIM9_NAME Ref_friction_glass_glass.flc ANIM9_LASTFRAME Ref_friction_glass_glass.RLE ANIM9_FIRSTFRAME Ref_friction_glass_glass.RLE NUM_CPBUTTONS 4 NUM_TEXTITEMS 6 TEXT1 wood TBOUNDS1_LEFT 25 TBOUNDS1_TOP 5 TBOUNDS1_RIGHT 140 TBOUNDS1_BOTTOM 40 TEXT1_COLOR 229 TEXT1_FONT Times_New_Roman24A TEXT2 rubber TBOUNDS2_LEFT 25 TBOUNDS2_TOP 5 TBOUNDS2_RIGHT 140 TBOUNDS2_BOTTOM 55 TEXT2_COLOR 144 TEXT2_FONT Times_New_Roman24A TEXT3 glass TBOUNDS3_LEFT 26 TBOUNDS3_TOP 5 TBOUNDS3_RIGHT 140 TBOUNDS3_BOTTOM 75 TEXT3_COLOR 2 TEXT3_FONT Times_New_Roman24A TEXT4 wood TBOUNDS4_LEFT 25 TBOUNDS4_TOP 160 TBOUNDS4_RIGHT 140 TBOUNDS4_BOTTOM 25 TEXT4_COLOR 229 TEXT4_FONT Times_New_Roman24A TEXT5 rubber TBOUNDS5_LEFT 25 TBOUNDS5_TOP 160 TBOUNDS5_RIGHT 140 TBOUNDS5_BOTTOM 35 TEXT5_COLOR 144 TEXT5_FONT Times_New_Roman24A TEXT6 glass TBOUNDS6_LEFT 26 TBOUNDS6_TOP 160 TBOUNDS6_RIGHT 140 TBOUNDS6_BOTTOM 65 TEXT6_COLOR 2 TEXT6_FONT Times_New_Roman24A CP_BUT1U RCStart.rle CP_BUT1D RCStartDown.rle CP_BUT1_ID 7010 CP_BUT1_LFT 500 CP_BUT1_TOP 218 CP_BUT1_RGT 544 CP_BUT1_BOT 246 CP_BUT2U REF_FrictionUp.RLE CP_BUT2D Ref_FrictionDwn.RLE CP_BUT2_ID 7112 CP_BUT2_LFT 502 CP_BUT2_TOP 252 CP_BUT2_RGT 542 CP_BUT2_BOT 290 CP_BUT3U REF_FrictionUp.RLE CP_BUT3D Ref_FrictionDwn.RLE CP_BUT3_ID 7113 CP_BUT3_LFT 502 CP_BUT3_TOP 310 CP_BUT3_RGT 544 CP_BUT3_BOT 360 CP_BUT5U RCStop.rle CP_BUT5D RCStopDown.rle CP_BUT5_ID 7011 CP_BUT5_LFT 501 CP_BUT5_TOP 365 CP_BUT5_RGT 542 CP_BUT5_BOT 387 PANEL_NAME FricPanel.ifc 
