Velocity vs. Time of a Rollerblader

Transcription

1 Velociy (m/s) Physics D Moion Prcice Pcke Grphing Nme Direcions: A priculr ype of moion is iscusse below. You re going o grph he moion n hen use he grph o nswer he quesions h follow. Be creful o wch wh ype of grph you re mking. Velociy s ime is ery ifferen from isnce s ime. Grph: Drw he elociy s. ime grph of rollerbler who oes he following: 1. She cceleres consn re from sop o spee of 5 m/s n oes his in 2 s. 2. She keeps his consn speech for 2 s. 3. She cceleres gin consn re up o her op spee of 14 m/s n ges o his spee in 3 s. 4. She srs slowown h lss for secon bringing her spee o 12 m/s. 5. She sys his spee for 4 s. 6. Finlly she slows from his spee o sop in 4 s Velociy s. Time of Rollerbler Quesions: Using he grph, nswer he following quesions 1. Wh is he re of ccelerion of he bler uring he inerl from 0 s o 2 s? 2. Wh is he re of ccelerion of he bler uring he inerl from 2 s o 4 s? 3. Wh is he re of ccelerion of he bler uring he inerl from 4 s o 7 s? 4. Wh is he re of ccelerion of he bler uring he inerl from 7 s o 8 s? 5. Wh is he re of ccelerion of he bler uring he inerl from 8 s o 12 s? 6. Wh is he re of ccelerion of he bler uring he inerl from 12 s o 16 s? 7. When i he bler he he grees posiie ccelerion? 8. When i he bler he he grees negie ccelerion? 9. How o hese wo ccelerions compre in erms of wh he bler fel s she ccelere? 10. During which one secon ime perio shown on he grph i he bler go he furhes isnce? 11. During which one secon ime perio shown on he grph i he bler go he les isnce?

2 Non Bler Quesions: This nex se of quesions oes no he o o wih he rollerbler siuion bu oes perin o grphing. As you nswer he following quesions, crefully exmine he ype of grph you re gien n sk yourself he following quesions: - Is he slope posiie or negie? - Is he slope seep (big), genle (smll) or fl (zero)? - Is he slope consn ( srigh line) or chnging ( cure line)? - If i is chnging, oes i ge seeper s ime goes on or fler s ime goes on? Disnce ersus Time Grphs: Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn?

3 Velociy ersus Time grphs: *** Velociy grphs ge lile rickier. Remember h i is showing you wh is hppening o he spee. Ask yourself he sme quesion s boe bu in hese s well: - Does he spee sr high or low? - Does i ge higher or oes i go o zero? - Is i posiie or negie? Wh oes h men bou which irecion i is moing? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i no moing, moing forwr or bckwr? Is i ccelering, ecelering or sying consn?

4 Accelerion s. Time Grphs: Is his speeer or cceleror? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i ccelering, ecelering or sying consn? Is his speeer or cceleror? Is i ccelering, ecelering or sying consn? ** Check your nswers o hese quesions before moing on!**

5 Accelerion (m/s/s) Disnce (m) Using he informion h you go from boe, skech he isnce ersus ime n he ccelerion ersus ime grphs for he rollerbler. The ccelerion s. ime grph migh be esier o sr wih. Ask yourself for ech segmen if he rollerbler is speeer, ccelering or ecelering n mke he pproprie ype of grph. For he isnce ersus ime grph you wn o remember h since he elociy is lwys posiie, he rollerbler is lwys moing wy from her sring poin. Then sk yourself if she is oing h consn spee or s n cceleror. Goo luck! Disnce s. Time of Rollerbler Accelerion s. Time of Rollerbler