Scientific Notation and Comparisons

The video tutorial for eighth graders covers scientific notation, focusing on constants and powers. It begins with an introduction and breakdown of Example 3, followed by an explanation of scientific notation and practice problems. The teacher reviews answers and provides detailed explanations. A real-life application example involving the Sun and Earth's diameters is discussed. The session concludes with homework instructions and additional resources for practice.

What is the result of dividing 1.5 by 6 in scientific notation?

• 2.5

• 0.25

• 1.25

• 0.15

When dividing numbers with the same base, what operation is performed on the exponents?

• Add them

• Multiply them

• Subtract them

• Divide them

What should be the range of the constant in scientific notation?

• 10 to 100

• 100 to 1000

• 1 to 10

• 0 to 1

If you multiply 6 by 8, what is the result in scientific notation with a power of 10^-5?

• 48 x 10^-4

• 4.8 x 10^-4

• 48 x 10^-5

• 4.8 x 10^-5

How do you adjust the exponent when moving the decimal to the left in scientific notation?

• Add 1 to the exponent

• Divide the exponent by 2

• Subtract 1 from the exponent

• Multiply the exponent by 2

What is the first step in comparing the diameters of the Sun and Earth using scientific notation?

• Multiply the diameters

• Convert both to scientific notation

• Subtract the diameters

• Add the diameters

What is the result of dividing 1.4 by 1.28 in the context of comparing the Sun and Earth's diameters?

• 1.4

• 1.09375

• 1.28

• 0.875

What is the power of 10 when dividing 10^6 by 10^4?

• 10^10

• 10^2

• 10^0

• 10^4

What is the approximate factor by which the Sun's diameter is greater than Earth's?

• 109.375

• 10.9375

• 1.09375

• 0.109375

What is the only assignment homework-wise that students need to complete?

• I Excel practice

• Workbook exercises

• Extra credit projects

• Big Ideas 10.7