$$1 \text{ cm} = 0.1 \text{ m}$$

$$1 \text{ m} + 2 \text{ m} = 3 \text{ m}$$

$$1 \text{ mi} = 1.609 \text{ km}$$

Question 1

Jerry drives 60 miles in 1 hour. What is his average velocity in km/h? (Use $$1 	ext{ mi} = 1.609 	ext{ km})$$

Accepted Answer

$$96.6 	ext{ km/h}$$

Question 2

Which of the following correctly expresses 0.00003456 in scientific notation?

Accepted Answer

$$3.456 	imes 10$$^{-5}$$

Question 3

A distance of 2,340,000 meters is best expressed using which metric prefix?

Accepted Answer

$$2.34 	ext{ Mm}$$

Question 4

If $$x = 2.34 	imes 10$$^{-5}$$ and y = 6$, what is z = x$$ 	imes y$$ in proper scientific notation?

Accepted Answer

$$1.404 	imes 10$$^{-4}$$

Question 5

Which of the following is NOT a correct use of metric prefixes?

Accepted Answer

$$1 	ext{ cm} = 0.1 	ext{ m}$$

Question 6

A scientist measures a length as $$0.0000234$$ meters. What is this value in micrometers ($$\mu	ext{m}$$)?

Accepted Answer

$$23.4 \mu	ext{m}$$

Question 7

Which metric prefix represents $$10^{-12}$$?

Accepted Answer

pico

Question 8

A runner completes a 5 km race in 25 minutes. What is their average speed in m/s?

Accepted Answer

$$3.33 	ext{ m/s}$$

Question 9

Which of the following calculations is valid in terms of units?

Accepted Answer

$$1 	ext{ m} + 2 	ext{ m} = 3 	ext{ m}$$

Question 10

Convert $$60 	ext{ mi/h} to m/s$$. ($$1 	ext{ mi} = 1609 	ext{ m})$$

Accepted Answer

$$26.8 	ext{ m/s}$$

Question 11

If $$d = v 	imes t$$ and $$v = 10 	ext{ m/s}$$, $$t = 5.5 	ext{ s}$$, what is $$d$$?

Accepted Answer

$$55 	ext{ m}$$

Question 12

A laboratory sample has a mass of $$0.000001$$ grams. Express this mass using the appropriate metric prefix.

Accepted Answer

$$1 \mu	ext{g}$$

Question 13

Which of the following is the correct scientific notation for 345600000?

Accepted Answer

$$3.456 	imes 10$$^{8}$$

Question 14

If $$x = 2.34 	imes 10$$^{-5}$$ and z = 6$, solve for y$ in z = x$$ 	imes y$$.

Accepted Answer

$$2.56 	imes 10$$^{5}$$

Question 15

A scientist records a measurement as $$1.2 	imes 10$$^{-9}$$ meters. Which metric prefix should be used?

Accepted Answer

nano

Question 16

Which of the following is the correct conversion factor from miles to kilometers?

Accepted Answer

$$1 	ext{ mi} = 1.609 	ext{ km}$$

Question 17

A car travels at $$1 	ext{ mi/min}. $$What is its speed in m/s? ($$1 	ext{ mi} = 1609 	ext{ m})$$

Accepted Answer

$$26.8 	ext{ m/s}$$

Question 18

Which of the following is the correct meaning of the prefix 'giga-'?

Accepted Answer

$$10^{9}$$

Question 19

A measurement is recorded as $$2.34 	imes 10$$^{6}$$ meters. What is this value in kilometers?

Accepted Answer

$$2340 	ext{ km}$$

Fundamental Concepts in Physics: Units, Scientific Notation, and Metric Prefixes

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