# Worksheet: Unit Conversions

Q1:

Mount Everest, at ft, is the tallest mountain on Earth. What is its height in kilometers? (Assume that .)

Q2:

Gold is sold by the troy ounce. A troy ounce equals 31.103 g. What is the volume of 1 troy ounce of pure gold? Use a value of kg/m3 for the density of pure gold.

Q3:

Soccer fields vary in size. A large soccer field is 115 m long and 85.0 m wide. What is its area in square feet? (Assume that .)

• A ft2
• B ft2
• C ft2
• D ft2
• E ft2

Q4:

What is the temperature in Fahrenheit of a temperature that is equal to 39 degrees Celsius?

.

Q5:

Fill in the missing value: hours and 60 seconds minutes.

Q6:

If your heart rate is 150 beats per minute during strenuous exercise, what is the time per beat in seconds?

Q7:

A complete rotation in a circle causes the rotator to face in the same direction after the rotation as before it. The angle rotated through is radians, which equals . How many radians is equal to?

Q8:

Fill in the missing value: days = minutes.

Q9:

1 fluid ounce is equal to approximately 30 mL. A can of soda pop has a volume of 12 fl oz. What is the volume of a can of soda pop in cubic meters?

• A 0.36 m3
• B m3
• C m3
• D m3
• E m3

Q10:

Fill in the missing value: days is the same as hours.

Q11:

The speed limit on some interstate highways is roughly 100 km/h.

What is this in meters per second?

How many miles per hour is this?

Note: .

Q12:

Fill in the missing value: hours seconds.

Q13:

Fill in the missing value: hours minutes.

Q14:

A commonly used unit of mass in the English system is the pound-mass, abbreviated lb, where . What is the density of water in pound-mass per cubic foot?

1 foot = 0.3048 m.

Density of water = kg/m3.

Q15:

Light travels a speed of m/s. A light-second is the distance light travels in 1 second. If the Sun is m from Earth, how far away is it in light-seconds?

Q16:

Considering an average of 80 heart beats of a person per minute, on average, how many heart beats does a person have in a year?

Q17:

A car is traveling at a speed of 42 m/s. What is its speed in kilometers per hour?

• A 420 km/h
• B 160 km/h
• C 100 km/h
• D 150 km/h
• E 130 km/h

Q18:

What is the height in meters of a person who is 6.00 ft 2.00 in tall?

Q19:

The speed of sound is measured to be 338 m/s on a particular day. What is this speed in km/h?

Q20:

An electron has a mass of kg. An alpha-particle has a mass of kg.

What is the mass of an alpha-particle in electron masses?

Q21:

N2 gas has a molar mass of 28.0 g/mol, and CO2 gas has a molar mass of 44.0 g/mol.

How many moles are in 0.0500 g of N2 gas?

• A
• B
• C
• D
• E

How many moles are in 10.0 g of CO2 gas?

How many molecules are in 0.0500 g of N2 gas?

• A
• B
• C
• D
• E

How many molecules are in 10.0 g of CO2 gas?

• A
• B
• C
• D
• E

Q22:

A light-nanosecond is the distance that light travels in a vacuum in exactly 1 ns. How many light-nanoseconds equal 1 foot if a foot is equal to 0.3048 m? Use m/s for the speed of light in a vacuum.

• A light-nanoseconds
• B light-nanoseconds
• C light-nanoseconds
• D1.02 light-nanoseconds
• E 0.98 light-nanoseconds

Q23:

Football is played on a 115-yd-long field. How long is the field in meters? Assume that and .

Q24:

Restate kg using a metric prefix such that the resulting number is greater than one but less than one thousand.

Q25:

Light travels 9 Pm per year. Calculate the speed of light in meters per second. Use a value of s for the duration of a year.

• A m/s
• B m/s
• C m/s
• D m/s
• E m/s

Q26:

If , how many newtons of force is equivalent to 1 lbf?

Q27:

What is 1.0 m/s in kilometers per hour?

Q28:

What Kelvin temperature is equivalent to 32 degrees Fahrenheit? Answer to three significant figure precision.

Q29:

A man has a mass of 85.2 kg. State this mass in lb to three significant figure precision.

Q30:

How many nm is 100 angstroms equivalent to?

Q31:

What is the possible drift of a clock that is accurate to within one second per year?

• A
• B
• C
• D
• E

Q32:

How many lbf is a force of 1.00 N approximately equal to?

Q33:

A pressure sensor’s reading at sea level is a gauge pressure of 24.3 psi. What is the absolute pressure?

Q34:

How many N⋅m of torque is equivalent to torque of 25 ft⋅lb?

Q35:

In SI units, what is the standard unit of force?

• AKilogram
• BPound
• CSlug
• DNewton
• EPascal

Q36:

In SI units, what is the standard unit of impulse?

• Aft-lbs
• BJs
• Cslugm/s2
• DNs
• ENm

Q37:

In SI units, what is the standard unit of kinetic energy?

• APound
• BNewton
• Cft-lb
• DJoule
• Em/s

Q38:

In SI units, what is the standard unit of power?

• BNewton
• CHorsepower
• DWatt
• EJoule

Q39:

In SI units, what is the standard unit of work?

• APound
• BNewton
• Cft-lb
• DJoule
• EWatt

Q40:

In US customary units, what is the standard unit of work?

• APound
• BNewton
• CJoule
• Dft-lb
• ENm

Q41:

In US customary units, what is the standard unit of power?

• BNewton
• CWatt
• DHorsepower
• EErg

Q42:

In US customary units, what is the standard unit of impulse?

• ANs
• BJs
• Cslugm/s2
• Dlbs
• Eftlbs

Q43:

In SI units, what is the standard unit of moment of inertia?

• ANm2
• Bslugft2
• Clbft2
• Dkgm2
• Ekg2m

Q44:

In US customary units, what is the standard unit moment of inertia?

• ANm2
• Bkgm2
• Clbft2
• Dslugft2
• Elb2ft

Q45:

If the units of are in/lbm and the units of are kg2/m2, what is the dimension of ?

• A
• B
• C
• D

Q46:

﻿What is an extensive property?

• AAn intensive property
• BA specific property
• CA product of two intensive properties
• DA physical property of a system that depends on the system size and mass

Q47:

What is a BTU?

• AA unit of energy that stand for British Transition Unit
• BA traditional unit of energy equal to N
• CA unit of energy that stands for British Thermal Union
• DA traditional unit of energy equal to J

Q48:

﻿What is an intensive property?

• AAn extensive property
• BA house
• CA product of two extensive properties
• DA physical property of a system that is independent of the system size and mass

Q49:

How many nanometers are there in one yard?

Q50:

Convert the length into millimeters. .

Q51:

How many dynes does a force of 418 newtons correspond to?

• A dyn
• B dyn
• C dyn
• D dyn
• E dyn

Q52:

What is escape speed from the gravitational field of Earth in miles/min? Use a value of 11.2 km/s for the escape speed.

Q53:

A cubic yard is often used as a measurement for some construction materials. What is the mass of a cubic yard of water? Use a value of 1.00 g for the mass of a cubic centimeter of water. .

Q54:

How many kg is the mass of a cubic foot of water? Use a value of 1.00 g for the mass of a cubic centimeter of water. 1 meter = 3.2808 feet.

Q55:

How many miles per hour corresponds to a speed of furlongs/fortnight? 1 furlong = miles and 1 fortnight = 2 weeks.

Q56:

What is the SI unit for energy per unit area?

• Apsi
• BN∙m
• Cdynes
• DPa∙m
• Elbf/s

Q57:

A pressure of 2.00 atmospheres is converted to units of millimeters of water at the Earth’s surface. What is the value for this unit?