Tell (summary)

Tell (summary)

This story is about a boy called David. David was sitting and watching TV when someone rang on their doorbell at 2 o’clock in the night. He went downstairs to see what was happening. The police told David that something had happened to his stepfather. Then they told him that his stepfather was ded. The funeral was some days after the death of Davids stepfather. Davids stepfathers name was Phil. Davids mother was very sad after Phils death and she cried often, but David wasn’t so sad because he didn’t like Phil so much. Phil liked to play poker with his friends. One of Phils friends was Jack. Jack was a close friend with Davids mother and thats how Jack got to know Phil. 

labbrapport

Labrapport 

material: Glödlampa, lins, mettal platta med skåra i, prisma, platta, elkub.

utförande: Först satte vi upp stativet som materialen skulle sättas upp på. Sen tog vi fram elkuben och kopplade in sladdarna till väggkontakten och glödlampan, då började lampan på stativet lysa. När lampan lyste genom linsen och plattan med skåran så kunde man vinkla ljusstrålen bakom prisman genom att vinkla prisman. 

resultat: när man riktar en smal ljusstråle på en prisma så kan man ändra vinkeln bakom prisman. 

slutsats: man kan ändra ljusets riktning genom att ändra prismans vinkel.

felkällor: inga.