joemee ke

in #min7 years ago

A. 1 B. 2 C. 2 D. 4 E. 5

  1. The scientific notation 3.5 ×103 multiplied by 3 is
    A. 1.05 ×102 B.1.05×1010 C. 1.05×103 D.1.05×109 E. 1.05×104
  2. The scientific notation 8.2×10-4 + 5.4×10-4=………
    A.1.35×10-5 B. 1.36×10-4 C.1.36×10-3 D.1.36×10-7 E.1.36×103
  3. Which of the following is (are) true?
    A.log⁡〖(xy) 〗=log⁡x + log⁡y B. (log⁡x )^n = n log⁡x C. log_10⁡1=0
    D.log_x⁡x=1 E.log⁡(x/y)= log⁡x-log⁡y
  4. Which of the following is (are) true?
    1.log⁡M/log⁡N =log⁡M-log⁡N 2.log⁡∛M=3 log⁡M 3.log_√a⁡M =2log_a⁡M
    A. 1 only B. 2 only C. 3 only D. 1 and only E. None of them
    6.Which of the following is (are) true?
    1. log_4⁡x=2log_16⁡x 2. log_b⁡x=3 log_(b^3 )⁡x 3. log_4⁡16= log_16⁡4
      A. 1only B. 2 only C. 3 only D. 1 and 2 only E. 1 and 3 only
  5. 〖10〗^(1+log_10⁡3 )=……..
    A.3 B.30 C. 3/10 D.10/3 E.15
    8.(4)^log_2⁡3 =……..
    Newton’s first law gives the idea of ……… .
    (2) By Newton’s second law , the acceleration is directly proportional to ……… .
    (3) Newton’s third law express the idea of ………. .
    (4) Action force and reaction force cannot ……… out each other.
    (5) Force has both magnitude and ……. .
    (6) Force is a ……… quantity.
    (7) The SI unit for force is ……….. .
    (8) Mass is a measure of ………. .
    (9) The attracting force of the earth acting on a body is defined as ……… .
    (10) Weight is a …….. quantity.
    (11) One newton is equal to ……. dyne.
    (12) There are ……….. fundamental forces.