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Škola: Gymnázium, Brno, Slovanské náměstí 7

Škola: Gymnázium, Brno, Slovanské náměstí 7 Šablona: III/2 – Inovace a zkvalitnění výuky prostřednictvím ICT Název projektu: Inovace výuky na GSN prostřednictvím ICT Číslo projektu: CZ.1.07/1.5.00/34.0940 Autor: RNDr. Bc. Miroslav Hruška

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Škola: Gymnázium, Brno, Slovanské náměstí 7

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  1. Škola: Gymnázium, Brno, Slovanské náměstí 7 Šablona: III/2 – Inovace a zkvalitnění výuky prostřednictvím ICT Název projektu: Inovace výuky na GSN prostřednictvím ICT Číslo projektu: CZ.1.07/1.5.00/34.0940 Autor: RNDr. Bc. Miroslav Hruška Tematická oblast: Kinematics of a particle (kinematika hmotného bodu) Název DUMu: Speed and velocity – B Kód: VY_32_INOVACE_FY.2.06 Datum: 27. 7. 2013 Cílová skupina: Žáci středních škol s CLIL výukou fyziky v angličtině Klíčová slova: Speed, velocity, average speed, instantaneous speed, instantaneous velocity, scalar, vector Anotace: Prezentace slouží k procvičení a rozšíření učiva z učebního materiálu Speed and velocity – A, který se týká pojmů průměrná a okamžitá rychlost a skalár a vektor.

  2. Kinematics of a particle 6. Speed and velocity – B

  3. i no credit ntn gate meg sent o hardware mega nudit uleva Find words connected with vectors

  4. True or false? Average speed equals time divided by distance Speedometer shows the average speed Kilometre per hour is a derived SI unit 1 km/h is equal to 3.6 m/s Velocity is a scalar Direction means a value and a unit

  5. See the examples, solve the tasks Zdroj: archiv autora

  6. 10 m/s 72 km/h 90 km/h 129.6 km/h 30 m/s 5 m/s 20 km/h 20 m/s 36 m/s 20000 m/h 25 m/s 36 km/h 108 km/h 18000 m/h Match equivalent speeds

  7. Fill in, get a secret word object line touching a curve international system type of quantity type of quantity motion is … distance divided by time „5“ in „5 m/s“ :-)

  8. Exercise I • A car went from Prague to Brno. At half past eight the driver had a look at the odometer and saw 55 km. At a quarter to ten he read 140 km. Calculate the average speed of the car between half past eight and a quarter to ten. • t1 = 8:30 = 8 h 30 min, s1 = 55 km • t2 = 9:45 = 9 h 45 min, s2 = 140 km

  9. Solution I • t1 = 8:30 = 8 h 30 min, s1 = 55 km • t2 = 9:45 = 9 h 45 min, s2 = 140 km • The average speed was 68 km/h.

  10. Exercise II • A truck went from A to B. It took three hours. Distance from A to B is 160 km. Then it got from B to C in four hours. Distance covered between B and C was260 km. Calculate the truck’s average speedfrom A to C. • t1 = 3 h, s1 = 160 km • t2 = 4 h, s2 = 260 km

  11. Solution II • t1 = 3 h, s1 = 160 km • t2 = 4 h, s2 = 260 km • The average speed was 60 km/h.

  12. Exercise III • A motorbike covered a certain distance in two minutes. The average speed was 90 km/h. Find the distance. Exercise IV • Between 18:15 and 18:40 a car covered 40 kilometres. What was his average speed?

  13. That is all for now Thank you for your attention

  14. Materiál je určen pro bezplatné používání pro potřeby výuky a vzdělávání na všech typech škol a školských zařízeních. Jakékoliv další využití podléhá autorskému zákonu. Zdroje: • Bednařík, M., Široká, M. Fyzika pro gymnázia, Mechanika. Dotisk 3. vyd. Praha: Prometheus, 2004. 288 s. ISBN 80-7196-176-0 • Hornby, A. S. Oxford Advanced Learner’s Dictionary of Current English. 5. vyd. Oxford: Oxford University Press, 1995. 1428 s. ISBN 0-19-431423-5

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