Question 1

Express (4.3 × 106)-1/2 in scientific notation.

Accepted Answer

A)  4.8 × 10-4 
B)  2.1 × 103 
C)  2.1 × 10-5 
D)  2.1 × 104 
A)  4.8 × 10-4 
B)  2.1 × 103 
C)  2.1 × 10-5 
D)  2.1 × 104 A

Question 2

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 should be written as

Accepted Answer

A)  0.7 m2. 
B)  0.68 m2. 
C)  0.682 m2. 
D)  0.6818 m2. 
E)  0.68175 m2. 
A)  0.7 m2. 
B)  0.68 m2. 
C)  0.682 m2. 
D)  0.6818 m2. 
E)  0.68175 m2. C

Question 3

How many nanoseconds does it take for a computer to perform one calculation if it performs 6.7 x 107 calculations per second?

Accepted Answer

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

Question 4

What is   to the proper number of significant figures?

Accepted Answer

A)  0.91 
B)  0.911 
C)  0.9108 
D)  0.9 
A)  0.91 
B)  0.911 
C)  0.9108 
D)  0.9

Question 5

What is 0.2052/3, expressed to the proper number of significant figures?

Accepted Answer

A)  0.348 
B)  0.35 
C)  0.3 
D)  0.3477 
A)  0.348 
B)  0.35 
C)  0.3 
D)  0.3477

Question 6

A weight lifter can bench press 171 kg. How many milligrams (mg) is this?

Accepted Answer

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

Question 7

Approximately how many pennies would you have to stack to reach an average 8-foot ceiling?

Accepted Answer

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

Question 8

A person on a diet loses 1.6 kg in a week. How many micrograms/second (µg/s) are lost?

Accepted Answer

A)  2.6 × 103 μg/s 
B)  1.6 × 105 μg/s 
C)  44 μg/s 
D)  6.4 × 104 μg/s 
A)  2.6 × 103 μg/s 
B)  1.6 × 105 μg/s 
C)  44 μg/s 
D)  6.4 × 104 μg/s

Question 9

What is the result of 1.58 ÷ 3.793 written with the correct number of significant figures?

Accepted Answer

A)  4.1656 × 10-1 
B)  4.166 × 10-1 
C)  4.17 × 10-1 
D)  4.2 × 10-1 
E)  4 × 10-1 
A)  4.1656 × 10-1 
B)  4.166 × 10-1 
C)  4.17 × 10-1 
D)  4.2 × 10-1 
E)  4 × 10-1

Question 10

Approximately how many times does an average human heart beat in a year?

Accepted Answer

A)  4 × 105 
B)  4 × 106 
C)  4 × 107 
D)  4 × 108 
E)  4 × 109 
A)  4 × 105 
B)  4 × 106 
C)  4 × 107 
D)  4 × 108 
E)  4 × 109

Question 11

What is the sum of 1123 and 10.3 written with the correct number of significant figures?

Accepted Answer

A)  1.13 × 103 
B)  1133.3000 
C)  1.1 × 103 
D)  1133.3 
E)  1133 
A)  1.13 × 103 
B)  1133.3000 
C)  1.1 × 103 
D)  1133.3 
E)  1133

Question 12

The number 0.003010 has

Accepted Answer

A)  7 significant figures. 
B)  6 significant figures. 
C)  4 significant figures. 
D)  2 significant figures. 
A)  7 significant figures. 
B)  6 significant figures. 
C)  4 significant figures. 
D)  2 significant figures.

Question 13

The mass of a typical adult woman is closest to

Accepted Answer

A)  20 kg. 
B)  35 kg. 
C)  75 kg. 
D)  150 kg. 
A)  20 kg. 
B)  35 kg. 
C)  75 kg. 
D)  150 kg.

Question 14

A marathon 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.

Accepted Answer

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

Question 15

When adding two numbers, the number of significant figures in the sum is equal to the number of significant figures in the least accurate of the numbers being added.

Accepted Answer

A) True 
 B)False

Question 16

Albert uses as his unit of length (for walking to visit his neighbors or plowing his fields) the albert (A), the distance Albert can throw a small rock. One albert is 92 meters. How many square alberts is equal to one acre? (1 acre = 43,560 ft2 = 4050 m2)

Accepted Answer

Question 17

What is the sum of 1.53 + 2.786 + 3.3 written with the correct number of significant figures?

Accepted Answer

A)  8 
B)  7.6 
C)  7.62 
D)  7.616 
E)  7.6160 
A)  8 
B)  7.6 
C)  7.62 
D)  7.616 
E)  7.6160

Question 18

The following exact conversion equivalents are given: 1 m = 100 cm, 1 in = 2.54 cm, and 1 ft = 12 in. If a computer screen has an area of 1.27 ft2, this area is closest to

Accepted Answer

A)  0.00284 m2. 
B)  0.0465 m2. 
C)  0.118 m2. 
D)  0.284 m2. 
E)  4.65 m2. 
A)  0.00284 m2. 
B)  0.0465 m2. 
C)  0.118 m2. 
D)  0.284 m2. 
E)  4.65 m2.

Question 19

In addition to 1 m = 39.37 in., the following exact conversion equivalents are given:
1 mile = 5280 ft, 1 ft = 12 in, 1 hour = 60 min, and 1 min = 60 s. If a particle has a velocity of 8.4 miles per hour,its velocity, in m/s, is closest to

Accepted Answer

A)  3.8 m/s. 
B)  3.0 m/s. 
C)  3.4 m/s. 
D)  4.1 m/s. 
E)  4.5 m/s. 
A)  3.8 m/s. 
B)  3.0 m/s. 
C)  3.4 m/s. 
D)  4.1 m/s. 
E)  4.5 m/s.

Question 20

If a flower is 6.5 cm wide, its width expressed in millimeters is x mm, where x is

Accepted Answer

A)  less than 6.5. 
B)  greater than 6.5. 
A)  less than 6.5. 
B)  greater than 6.5.

Exam 1: Concepts of Motion

Express (4.3 × 106)-1/2 in scientific notation.

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 should be written as

How many nanoseconds does it take for a computer to perform one calculation if it performs 6.7 x 107 calculations per second?

What is to the proper number of significant figures?

What is 0.2052/3, expressed to the proper number of significant figures?

A weight lifter can bench press 171 kg. How many milligrams (mg) is this?

Approximately how many pennies would you have to stack to reach an average 8-foot ceiling?

A person on a diet loses 1.6 kg in a week. How many micrograms/second (µg/s) are lost?

What is the result of 1.58 ÷ 3.793 written with the correct number of significant figures?

Approximately how many times does an average human heart beat in a year?

What is the sum of 1123 and 10.3 written with the correct number of significant figures?

The number 0.003010 has

The mass of a typical adult woman is closest to

A marathon 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.

When adding two numbers, the number of significant figures in the sum is equal to the number of significant figures in the least accurate of the numbers being added.

Albert uses as his unit of length (for walking to visit his neighbors or plowing his fields) the albert (A), the distance Albert can throw a small rock. One albert is 92 meters. How many square alberts is equal to one acre? (1 acre = 43,560 ft2 = 4050 m2)

What is the sum of 1.53 + 2.786 + 3.3 written with the correct number of significant figures?

The following exact conversion equivalents are given: 1 m = 100 cm, 1 in = 2.54 cm, and 1 ft = 12 in. If a computer screen has an area of 1.27 ft2, this area is closest to

In addition to 1 m = 39.37 in., the following exact conversion equivalents are given: 1 mile = 5280 ft, 1 ft = 12 in, 1 hour = 60 min, and 1 min = 60 s. If a particle has a velocity of 8.4 miles per hour,its velocity, in m/s, is closest to

If a flower is 6.5 cm wide, its width expressed in millimeters is x mm, where x is

Kinematics in One Dimension

Vectors and Coordinate Systems

Kinematics in Two Dimensions

Force and Motion

Dynamics I: Motion Along a Line

Newtons Third Law

Dynamics Ii: Motion in a Plane

Impulse and Momentum

Energy

Work

Rotation of a Rigid Body

Newtons Theory of Gravity

Oscillations

Fluids and Elasticity

A Macroscopic Description of Matter

Work, Heat, and the First Law of Thermodynamics

The Micromacro Connection

Heat Engines and Refrigerators

Traveling Waves

Superpositions

Wave Optics

Ray Optics

Optical Instruments

Electric Charges and Forces

The Electric Field

Gausss Law

The Electric Potential

Potential and Field

Current and Resistance

Fundamentals of Circuits

The Magnetic Field

Electromagnetic Induction

Electromagnetic Fields and Waves

Ac Circuits

Relativity

The Foundations of Modern Physics

Quantization

Wave Functions and Uncertainty

One-Dimensional Quantum Mechanics

Atomic Physics

Nuclear Physics

Filters

Express (4.3 × 10⁶)^-1/2 in scientific notation.

How many nanoseconds does it take for a computer to perform one calculation if it performs 6.7 x 10⁷ calculations per second?

What is 0.205^2/3, expressed to the proper number of significant figures?

Albert uses as his unit of length (for walking to visit his neighbors or plowing his fields) the albert (A), the distance Albert can throw a small rock. One albert is 92 meters. How many square alberts is equal to one acre? (1 acre = 43,560 ft² = 4050 m²)

The following exact conversion equivalents are given: 1 m = 100 cm, 1 in = 2.54 cm, and 1 ft = 12 in. If a computer screen has an area of 1.27 ft², this area is closest to