Scientific Notation Quiz_Evaluation
Authored by Novelyn Dumalaog
Mathematics
7th Grade
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes scientific notation?
A way to write only small numbers.
A method to express very large or very small numbers using exponents.
A technique to round numbers to the nearest whole number.
A system used only in space research.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The distance from Earth to the Sun is 150,000,000 km. What is its scientific notation?
1.5 × 10⁶ km
15 × 10⁷ km
1.5 × 10⁸ km
150 × 10⁶ km
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diameter of a human hair is approximately 0.000075 meters. How is this written in scientific notation?
7.5 × 10⁴ m
7.5 × 10⁻⁵ m
0.75 × 10⁻⁴ m
7.5 × 10⁻³ m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the speed of light is 300,000,000 m/s, how can it be written in scientific notation?
3 × 10⁸ m/s
30 × 10⁷ m/s
3 × 10⁶ m/s
3.0 × 10⁹ m/s
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the exponent in scientific notation when expressing a small number (less than 1)?
It becomes positive.
It remains 0.
It becomes negative.
It turns into a fraction.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The distance between Earth and the Moon is approximately 384,400 km. How is this written in scientific notation?
3.844 × 10⁵ km
38.44 × 10⁴ km
3.844 × 10⁶ km
3844 × 10² km
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The size of a dust particle is 0.00000031 m. Which of the following is the correct scientific notation?
3.1 × 10⁶ m
3.1 × 10⁻⁷ m
0.31 × 10⁻⁶ m
3.1 × 10⁸ m
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