Deck 1: Introduction

Question 1

A reasonable estimate for the duration of a typical physics lecture is

A)600 s.
B)1000 s.
C)3500 s.
D)10,000 s.

Answer 1

C

Question 2

If a circle has a radius of 1.109 m,what is its area expressed to the correct number of significant figures?

A)3.86 m²
B)3.863 m²
C)3.864 m²
D)3.8638 m²
E)3.86379 m²

Answer 2

C

Question 3

The volume of a 10-mL test tube is equivalent to which one of the following quantities?

A)0.01 L
B)0.001 kL
C)0.1 L
D)1 × 10^-6 L
E)0.001 ML

Answer 3

A

Question 4

Which of the following numbers is the smallest?

A)15 × 10^-3
B)0.15 × 10⁰
C)0.00015 × 10³
D)0.00000015 × 10⁶

Question 5

Which one of the following numbers is equivalent to the number 0.0001776?

A)1.776 × 10^-4
B)17.76 × 10^-3
C)1776 × 10^-5
D)177.6 × 10^-7

Question 6

In the product A ∙ B ∙ C,A has 5 significant figures,B has 2 significant figures,and C has 3 significant figures.How many significant figures does the product have?

A)2
B)3
C)4
D)5
E)10

Question 7

In the quotient ,A has 5 significant figures,B has 2 significant figures,and C has 3 significant figures.How many significant figures does the quotient have?

A)2
B)3
C)4
D)0
E)1

Question 8

Write out the number 8.42 × 10^-5 in full with a decimal point and correct number of zeros.

A)0.00000842
B)0.0000842
C)0.000842
D)0.00842

Question 9

A reasonable estimate for the height of the walls in an ordinary American home is

A)10 m.
B)8 m.
C)2.5 m.
D)1.5 m.

Question 10

A rectangular garden measures 15 m long and 13.70 m wide.What is the length of a diagonal from one corner of the garden to the other?

A)18 m
B)19 m
C)20 m
D)4.1 × 10² m

Question 11

A volume of 100 mL is equivalent to which one of the following volumes?

A)1 kL
B)10^-6 μL
C)0.1 L
D)0.01 ML

Question 12

A reasonable estimate for the mass of a typical new-born baby is

A)1 kg.
B)3 kg.
C)10 kg.
D)20 kg.

Question 13

What is the result of the calculation (0.410 + 0.021)× (2.20 × 10³)?

A)880
B)946
C)948
D)950

Question 14

The length and width of a rectangle are 1.125 m and 0.606 m,respectively.Multiplying,your calculator gives the product as 0.68175.Rounding properly to the correct number of significant figures,the area of the rectangle should be written as

A)0.68 m²
B)0.682 m²
C)0.6818 m²
D)0.68175 m²

Question 15

A reasonable estimate for the height of an ordinary adult male is

A)50 cm.
B)70 cm.
C)200 cm.
D)300 cm.

Question 16

A reasonable estimate for the mass of an ordinary passenger car is

A)100 kg
B)1000 kg
C)5000 kg
D)10,000 kg

Question 17

A reasonable estimate for the mass of a typical female college student is

A)20 kg.
B)50 kg.
C)150 kg.
D)200 kg.

Question 18

Express (2.2 × 10⁶)^-1/2 in scientific notation.

A)6.7 × 10^-4
B)1.5 × 10³
C)1.5 × 10^-5
D)1.5 × 10⁴

Question 19

The last page of a book is numbered 764.The book is 3.0 cm thick,not including its covers.What is the average thickness (in centimeters)of a page in the book,rounded to the proper number of significant figures?

A)0.0039 cm
B)0.072 cm
C)0.0079 cm
D)0.00393 cm
E)0.00785 cm

Question 20

Using a digital balance the mass of a certain piece of wood is read as 12.946 g.Thinking in terms of accuracy and significant figures,what value would you record on your data sheet if the balance is accurate to one-tenth of a gram?

A)12.9 g
B)12.95 g
C)13 g
D)13.0 g

Question 21

The quantity 0.00325 × 10^-8 cm is equivalent to

A)3.25 × 10^-12 mm
B)3.25 × 10^-11 mm
C)3.25 × 10^-10 mm
D)3.25 × 10^-9 mm
E)3.25 × 10^-8 mm

Question 22

Estimate the number of times the earth will rotate on its axis during a human's lifetime.

A)3 × 10⁴
B)3 × 10⁵
C)3 × 10⁶
D)3 × 10⁷
E)3 × 10⁸

Question 23

Estimate how many pennies you would have to stack to reach from the floor to an average 8-ft ceiling.

A)2 × 10³
B)2 × 10²
C)2 × 10⁴
D)2 × 10⁵
E)2 x 10⁶

Question 24

Estimate the thickness,in meters,of an ordinary sheet of paper.

A)10^-4 m
B)10^-5 m
C)10^-6 m
D)10^-7 m
E)10^-8 m

Question 25

The prefix yotta (Y)signifies a multiple of 10²⁴.How many yottameters are there in a gigameter?

Question 26

The number 0.00325 × 10^-8 cm can be expressed in millimeters as

A)3.25 × 10^-12 mm.
B)3.25 × 10^-11 mm.
C)3.25 × 10^-10 mm.
D)3.25 × 10^-9 mm.

Question 27

How many nanoseconds does it take for a computer to perform one calculation if it performs calculations per second?

A)15 ns
B)67 ns
C)11 ns
D)65 ns

Question 28

A weight lifter can bench press How many milligrams is this?

A)1.71 × 10⁸ mg
B)1.71 × 10⁹ mg
C)1.71 × 10⁷ mg
D)1.71 × 10⁶ mg

Question 29

A certain disk can store 600 megabytes of information.If an average word requires 9.0 bytes of storage,how many words can be stored on one disk?

A)6.7 × 10⁷ words
B)5.4 × 10⁹ words
C)2.1 × 10⁷ words
D)2.0 × 10⁹ words

Question 30

Estimate the number of times an average person's heart beats in a lifetime.Assume the average heart rate is 69 beats/min and a life span of 75 years.

A)3 × 10⁹ beats
B)3 × 10⁸ beats
C)3 × 10¹⁰ beats
D)3 × 10⁷ beats

Question 31

A marathon race is 26 mi and 385 yd long.Estimate how many strides would be required to run a marathon.Assume a reasonable value for the average number of feet/stride.

A)4.5 × 10⁴ strides
B)4.5 × 10³ strides
C)4.5 × 10⁵ strides
D)4.5 × 10⁶ strides

Question 32

Which of the following is the most reasonable estimate of the number of characters (typed letters or numbers)in a 609-page book? Assume an average of 194 words per page and a reasonable average number of letters per word.

A)5 × 10⁵ char
B)5 × 10⁷ char
C)5 × 10⁶ char
D)5 × 10⁴ char