Quiz on Scientific Notation and Significant Figures

What is the standard form of scientific notation?

• N × 10^a, where N is a negative number

• N × 10^a, where N is any number between 1 and 10 and a is any positive or negative integer

• N × 10^a, where a is always positive

• N × 10^a, where N is any number between 1 and 10, and a should always be positive

How do you add numbers in scientific notation?

• Add the N values and keep the exponents the same

• Add the exponents and keep the N values the same

• Add the N values and subtract the exponents

• Add both N and exponents separately

What is the correct scientific notation for 15 700 000 K?

• 1.57 × 10^8 K

• 1.57 × 10^7 K

• 15.7 × 10^6 K

• 1.57 × 10^6 K

What is the significance of significant figures?

• They are only used in scientific notation

• They only apply to whole numbers

• They are not important in calculations

• They help in accurately reporting values

How do you determine the number of significant figures in a measurement?

• Count only the digits after the decimal point

• Count all nonzero digits

• Count only the zeros

• Count all digits including leading zeros

What happens to the exponent when you move the decimal point to the left in scientific notation?

• The exponent doubles

• The exponent remains the same

• The exponent becomes negative

• The exponent becomes positive

In multiplication of scientific notation, how are the exponents treated?

• They are added together

• They are ignored

• They are subtracted

• They are multiplied

What is the total distance between Brgy. Magaling and Brgy. Masipag if they are 7.0 × 10^3 m and 1.2 × 10^3 m apart?

• 8.2 × 10^3 m

• 8.2 × 10^4 m

• 8.2 × 10^5 m

• 8.2 × 10^2 m

What is the result of multiplying 0.250 kg by 0.012 m/s²?

• 0.3 kg m/s²

• 0.0030 kg m/s²

• 0.003 kg m/s²

• 0.03 kg m/s²

How should the final answer in multiplication and division be expressed?

• With no significant figures

• With only whole numbers

• With the same number of significant figures as the least accurate measurement

• With as many significant figures as possible