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• Scientific notation test

Scientific notation test

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•  Question 1: 1 pts Number $12 \cdot 10^{12}$ is written in scientific notation?
•  Question 2: 3 pts Which of these numbers are not written in scientific notation.
 $0.1 \cdot 10^3$ $3.2 \cdot 10^3$ $2.1 \cdot 10^2$ $5 \cdot 10^2$
•  Question 3: 1 pts Write 500 in scientific notation.
 $5 \cdot 10^3$ $0.5 \cdot 10^3$ $50 \cdot 10^2$ $5 \cdot 10^2$
•  Question 4: 1 pts Write 520 in scientific notation.
 $52 \cdot 10^2$ $0.52 \cdot 10^3$ $5.2 \cdot 10^3$ $5.2 \cdot 10^2$
•  Question 5: 2 pts Earth is about 150,000,000 km from the Sun. What is this distance in scientific notation?
 $15 \cdot 10^8$ $1.5 \cdot 10^8$ $15 \cdot 10^9$ $1.5 \cdot 10^9$
•  Question 6: 1 pts Write in decimal notation $10^4$.
 $10$ $100$ $10000$ $100000$
•  Question 7: 2 pts Write in decimal notation $1.2 \cdot 10^3$.
 $120$ $1200$ $12000$ $120000$
•  Question 8: 2 pts Write 0.005 in scientific notation.
 $5 \cdot 10^{-3}$ $5 \cdot 10^{-2}$ $0.5 \cdot 10^{-3}$ $0.5 \cdot 10^{-2}$
•  Question 9: 2 pts Write 0.012 in scientific notation.
 $12 \cdot 10^{-3}$ $12 \cdot 10^3$ $1.2 \cdot 10^{-3}$ $1.2 \cdot 10^{-2}$
•  Question 10: 3 pts Is the following statement true or false? $$2 \cdot 10^5 \cdot 4 \cdot10^3 = 8 \cdot 10^8$$
•  Question 11: 3 pts Is the following statement true or false? $$0.002 \cdot 0.00012 = 2.4 \cdot 10^{-7}$$
•  Question 12: 3 pts Is the following statement true or false? $$\frac{0.00002}{0.00000005} = 4 \cdot 10^2$$
•  Question 13: 3 pts Evaluate $0.003 \cdot 0.0004$ using scientific notation.
 $1.2 \cdot 10^{-5}$ $1.2 \cdot 10^{-6}$ $1.2 \cdot 10^{-7}$
•  Question 14: 3 pts Evaluate $\frac{0.00004}{0.0002}$ using scientific notation
 $0.2 \cdot 10^{-1}$ $2 \cdot 10^{-1}$ $2 \cdot 10^1$ $0.2 \cdot 10^1$