Question 1

Which of the following is the correct SI unit for force, and how is it defined in terms of base units?

Accepted Answer

Newton (N), defined as $$\mathrm{kg} \cdot \mathrm{m} / \mathrm{s}^2$$

Question 2

A car travels a distance of 5.0 km. Express this distance in meters using the correct metric prefix.

Accepted Answer

$$5.0 	imes 10^3$ m

Question 3

Which of the following sets of units are compatible for use in the equation $$F = m 	imes a$$?

Accepted Answer

Kilogram (kg), meter (m), second (s)

Question 4

Convert 3,000,000,000 nanometers (nm) to decameters (dam).

Accepted Answer

3 dam

Question 5

Which of the following correctly expresses 0.0000529 × $$10^{-6} m in $$scientific notation?

Accepted Answer

$$5.29 	imes 10$$^{-8}$$ m

Question 6

Rewrite 299,800,000 m/s in scientific notation.

Accepted Answer

$$2.998 	imes 10^8$ m/s

Question 7

If you convert 7.52 kg to micrograms ($$\mug$$), what is the correct value?

Accepted Answer

$$7.52 	imes 10^9$ \mu g

Question 8

Which of the following best describes the process of converting a very large number into scientific notation?

Accepted Answer

Move the decimal point to create a number between 1 and 10, then multiply by $$10$$ raised to the number of places moved.

Question 9

A measurement is recorded as $$3.41 	imes 10$$^{-4}$$. What is this value in standard decimal notation?

Accepted Answer

0.000341

Question 10

Rewrite $$9.98 	imes 10^7$ in standard form.

Accepted Answer

99,800,000

Question 11

When converting from a larger metric unit to a smaller one, what happens to the numerical value?

Accepted Answer

The number becomes larger

Question 12

Which of the following is the correct scientific notation for the mass of Earth, given as 5,972,000,000,000,000,000,000,000 kg?

Accepted Answer

$$5.972 	imes 10$$^{24}$$ kg

Question 13

A student measures a length as 650 nm. Express this value in meters using scientific notation.

Accepted Answer

$$6.5 	imes 10$$^{-7}$$ m

Question 14

Which of the following is NOT a compatible set of units for calculating force using $$F = m 	imes a$$?

Accepted Answer

Pound (lb), meter (m), second (s)

Question 15

Express 0.00389 mm in meters using scientific notation.

Accepted Answer

$$3.89 	imes 10$$^{-6}$$ m

Question 16

Which of the following best describes a 'physical quantity' in physics?

Accepted Answer

A measurable property that has both a number and a unit

Question 17

If you shift from a smaller metric unit to a bigger one, what happens to the numerical value?

Accepted Answer

The number becomes smaller

Question 18

Which of the following is the correct conversion of 4.6 mm to meters using scientific notation?

Accepted Answer

$$4.6 	imes 10$$^{-3}$$ m

Question 19

A student writes the value $$7.0 	imes 10^5$ s. What is this value in standard decimal notation?

Accepted Answer

700,000 s

Fundamentals of Measurement and Scientific Notation in Physics

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