Mid TermQuiz X

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  • 7/30/2019 Mid TermQuiz X

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    Mid-term Quiz

    Physics Grade X

    Choose some of these questions until you get score 100!

    1. [score15] Explain the unit and dimension of these

    quantities (jelaskan satuan dan dimensi dari):

    a. specific mass (massa jenis)b. velocity (kecepatan)

    c. potential energy (energi potensial)

    2. [score10] A vernier caliper has a result of measurement as

    shown in picture. How do we report this result?(sebuah jangka sorong mendapatkan hasil

    pengukuran seperti gambar. Berapakah hasil pengukuran tersebut?)

    3. [score15] Period to make a vibration is arranged by equationk

    mT

    2

    . IfTis time (second) and

    m is mass (kg), kis a constant. What is the dimension ofk? (Perioda suatu

    getaran di susun dengan persamaank

    mT

    2.Apakah dimensi dari k?)

    4. [score20] Three force vectors with 6N, 4N and 2N are shown in picture.

    Find the components of each vector and what is the resultant of the vector?

    (Tiga vector gaya dengan 6N, 4N dan 2N seperti gambar. Tentukan

    komponen tiap vector dan berapa resultan vector tersebut?)

    5. [score15] A car is moving in the circular street as

    shown in picture. The diameter is 400 meter and it moves for 80 second

    following half of circle. What are its average velocity and average speed?(Mobil bergerak pada jalan melingkar seperti gambar. Diameter jalan

    melingkar 400 m dan mobil bergerak selama 80 detik mengikuti

    lingkaran. Berapakah kecepatan rata-rata dan kelajuan rata-ratanya?)

    6. [score15] A car moves from P to Q with 20 m/s. A bus moves from Q to P with 30 m/s. After 80

    second, they meet in somewhere between P and Q. What is the distance of PQ? (Mobil bergerak

    dari P ke Q dengan 20 m/s. Bis bergerak dari Q ke P dengan 30 m/s. setelah 80 detik mobil dan

    bis saling bertemu diantara P dan Q. Berapakah jarak P-Q?)

    7. [score15] Someone is riding his bike with velocity of 5 m/s. He adds his velocity until 35 m/s

    for 6 second. Make calculation of his acceleration and his distance! (seseorang bersepedadengan kecepatan 5 m/s. dia menambah kecepatannya hingga 35 m/s selama 6 detik. Hitung

    percepatan dan kecepatan sepeda itu!)

    8. [score15] A train will be arrived in a station. It comes with velocity of 60 m/s and then reducing

    until 15 m/s. If it is happened for 15 second, what is its acceleration and its distance? (Kereta

    sedang menuju stasiun. Kereta mula-mula berkecepatan 60 m/s kemudian berkurang hingga 15

    m/s selama 15 detik. Berapakah pecepatan kereta dan jarak yang ditempuhnya?)

    900

    300

    600

    6N

    4N

    2N

  • 7/30/2019 Mid TermQuiz X

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    9. Explain the unit and dimension of these quantities:

    a. Energy kinetic

    b. Force

    c. volume

    10. A micrometer screw has a result of measurement as shown in picture.

    How do we report this result?

    11. A wave moves by equation

    LEkv

    = . Ifv is velocity (m/s)

    andEis energy (kg m/s2), is specific mass (kg/m3), and kis a constant. What is the dimension ofk?

    12. Four vectors with 4N, 4N, 2N and 2N are shown in picture. Find the components of

    each vector and what is the resultant of the vector?

    13. A car is moving in the circular street as shown in picture. The

    diameter is 3 km and it moves for 30 second following half

    of circle. What are its average velocity and average speed?

    14. A moves from Jogja to Jakarta with 40 m/s. A moves from Jakarta to Jogja with

    60 m/s. They meet in Purwokerto, that is 50 second from begining. What is the distance of jogja to jakarta?

    15. Someone is driving his car with velocity of 25 m/s. He adds his velocity until 40 m/s for 5 second. What are the

    acceleration and the distance?

    16. A boat will be arrived in a land. It comes with velocity of 50 m/s and then reducing until 10 m/s. If it is happened for 4

    second, what are its acceleration and its distance?

    17. Someone walks from rest until his velocity is 8 m/s. He has walked for 20 meter. What is his acceleration? What is his

    time to walk?

    18. A bike moves faster from 3 m/s until 9 m/s. It needs 10 seconds to make it faster. What is the final velocity if he only

    use 6 second? Calculate also the distance for 6 second.

    19.

    12002N

    3002N

    4N

    2N