BMST Scientific Notation and Unit Conversions

Question 1

Which of the following correctly expresses 0.00045 in scientific notation?

Accepted Answer

4.5 × 10⁻⁴

Answer

4.5 × 10⁴

Answer

45 × 10⁻⁵

Answer

0.45 × 10⁻³

Question 2

Multiply: (3 × 10³) × (2 × 10⁴) = ?

Accepted Answer

6 × 10⁷

Answer

6 × 10¹²

Answer

5 × 10⁷

Answer

6 × 10⁶

Question 3

How many millimeters are in 3.5 meters?

Accepted Answer

3,500 mm

Answer

350 mm

Answer

0.0035 mm

Answer

35 mm

Question 4

Which prefix represents 10⁻⁶ (one millionth)?

Accepted Answer

Micro (μ)

Answer

Milli (m)

Answer

Nano (n)

Answer

Kilo (k)

Question 5

Convert 5,200,000 to scientific notation.

Accepted Answer

5.2 × 10⁶

Answer

52 × 10⁵

Answer

5.2 × 10⁷

Answer

0.52 × 10⁷

Question 6

A sample weighs 2,500 grams. How many kilograms is this?

Accepted Answer

2.5 kg

Answer

25 kg

Answer

0.25 kg

Answer

250 kg