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Scientific notation Knowledge-Based Practice

Physics · Introduction to Physics · Physics · Measurement & Units

5 Physics practice questions on Scientific notation. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    What is the value of (4.0×10−3)2(4.0 \times 10^{-3})^2 expressed in standard scientific notation?

    • A) 1.6×10−51.6 \times 10^{-5}
    • B) 1.6×10−61.6 \times 10^{-6}
    • C) 1.6×10−71.6 \times 10^{-7}
    • D) 8.0×10−68.0 \times 10^{-6}
  2. 2.

    What is the sum of 5.2×103 m5.2 \times 10^3\text{ m} and 4.1×102 m4.1 \times 10^2\text{ m} expressed in standard scientific notation?

    • A) 9.3×105 m9.3 \times 10^5\text{ m}
    • B) 5.61×103 m5.61 \times 10^3\text{ m}
    • C) 9.3×103 m9.3 \times 10^3\text{ m}
    • D) 5.61×102 m5.61 \times 10^2\text{ m}
  3. 3.

    What is the quotient of (7.2×10−2)÷(1.8×10−6)(7.2 \times 10^{-2}) \div (1.8 \times 10^{-6}) expressed in standard scientific notation?

    • A) 4.0×1044.0 \times 10^{4}
    • B) 4.0×10−84.0 \times 10^{-8}
    • C) 4.0×10−44.0 \times 10^{-4}
    • D) 5.4×1045.4 \times 10^{4}
  4. 4.

    What is the product of 4.0×1054.0 \times 10^5 and 3.0×1033.0 \times 10^3 expressed in standard scientific notation?

    • A) 12×10812 \times 10^8
    • B) 1.2×1081.2 \times 10^8
    • C) 1.2×1091.2 \times 10^9
    • D) 1.2×10151.2 \times 10^{15}
  5. 5.

    A physics experiment measures the wavelength of a laser beam as 0.000000632 m. What is this measurement expressed in standard scientific notation?

    • A) 6.32×10−66.32 \times 10^{-6} m
    • B) 6.32×10−76.32 \times 10^{-7} m
    • C) 63.2×10−863.2 \times 10^{-8} m
    • D) 6.32×1076.32 \times 10^{7} m

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