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Calculus-Based Physics 1

Showing 151-222 of 222 answers

The force applied is one of the three quantities of torque acceleration.
  • False Correct
The length of the lever arm connecting the axis to the point of the force application is one of the three quantities of torque magnitude.
  • True Correct
The magnitude of torque depends on two quantities only.
  • False Correct
The main advantages of the metric system is that it has many base unit for each physical quantity
  • False Correct
The main advantages of the metric system is that it has many base unit for each physical quantity.
  • True
  • False Correct
The mathematical quantities that are used to describe the motion of objects can be divided into three categories.
  • False Correct
The maximum value of the sine function.
  • 1 or one Correct
  • 3 or three
  • 2 or two
  • 4 or four
The moment caused by the resultant force about some arbitrary point is equal to the sum of the moment due to all of the component forces of the system.
  • True Correct
The moment of the resultant of a system of forces with respect to any axis or point is equal to the vector sum of the moments of the individual forces of the system with respect to the same access or point.
  • True Correct
The motion is repeated in the same length of time.
  • angular harmonic motion Correct
The motion of a body which repeats itself atregular intervals of time or period.
  • displacement
  • none of the choices
  • periodic motion Correct
  • simple harmonic motion
The motion of objects can not be described by words
  • False Correct
The number of seconds it will require to make one complete vibration or one up and down is called?
  • period Correct
The number of seconds it willrequire to make one complete vibration or one up and down is called?
  • waves
  • displacement
  • none of the choices
  • period Correct
The pressure units commonly used in the USA include the inch of mercury and the atmosphere (29.92 inches of mercury).
  • True Correct
The resultant and equilibrant of several sets of such known forces are determined by both graphical and analytical methods.
  • method Correct
The resultant and equilibrantof several sets of such known forces are determined by both graphical andanalytical methods.
  • theory
  • object
  • none of the choices
  • method Correct
The sum of the clockwise moments equals sum of the anticlockwise moments when the body is in equilibrium.
  • True Correct
The symbol of torque is the Greek word for TAO.
  • False Correct
The symbol oftorque is the Greek word for TAO.
  • True
  • False Correct
The temperature unit commonly used in USA is Centigrade.
  • False Correct
The term torque was introduced into English scientific literature by Lord Kevin, in 1884.
  • False Correct
The three forces in the figure create a verticalresultant acting through point A. If T is known to be 361 lb., compute thevalues of F and P.NOTE: see fig-4 from the LIST OF FIGURE in week-1
  • F = 25329 lb , P = 50706 lb
  • none of the choices
  • F = 25329 lb , P = 50706 lb Correct
  • F = 25329 lb , P = 50706 lb
The vectors are translated, to a common origin.
  • Parallelogram Method Correct
The word measurement is derived from the Greek word  ______________.
  • none of the choices
  • metron Correct
  • metre
  • meter
The word measurement is derived from the Greek word ______________.
  • metron Correct
Theangle between the two Force is scalar isone of the three quantities of torque magnitude.
  • True Correct
  • False
Theforce applied is one of the three quantities of torque acceleration.
  • True
  • False Correct
Thelength of the lever arm connecting the axis to the point of the forceapplication is one of the three quantities of torque magnitude.
  • True Correct
  • False
Themathematical quantities that are used to describe the motion of objects can bedivided into three categories.
  • True
  • False Correct
Themoment caused by the resultant force about some arbitrary point is equal to thesum of the moment due to all of the component forces of the system.
  • True Correct
  • False
Themoment of the resultant of a system of forces with respect to any axis or pointis equal to the vector sum of the moments of the individual forces of thesystem with respect to the same access or point.
  • True Correct
  • False
Themotion of objects can not be described by words
  • True
  • False Correct
Thepressure units commonly used in the USA include the inch of mercury and theatmosphere (29.92 inches of mercury).
  • True
  • False
There are only two types of SI units, based and derived units.
  • True Correct
  • False
Theresultant of non-concurrent force system is defined according to _________,__________, and ___________.
  • speed, inclination, position
  • magnitude, displacement, position
  • magnitude, inclination, position Correct
  • none of the choices
Thesum of the clockwise moments equals sum of the anticlockwise moments when thebody is in equilibrium.
  • True Correct
  • False
Thevectors are translated, to a common origin.
  • Sine and Cosine Method
  • Trigonometric Method
  • Polygon Method
  • Parallelogram Method Correct
Three forces act on a point: 3 N at 0°, 4 N at 90°, and 5 N at 217°. What is the net force?
  • 1.4 N, 135 degrees Correct
Three forces act on a point: 3 N at0=C2=B0, 4 N at 90=C2=B0, and 5 N at 217=C2=B0. What is the net force?
  • 14 N, 125 degrees
  • 14 N, 135 degrees Correct
  • 21 N, 125 degrees
  • 21 N, 135 degrees
To find the resultant vector's magnitude, use the _________ theorem
  • Pythagorean Correct
To satisfy first condition of equilibrium, if rightward forces are positive, leftward forces must be
  • negative Correct
To satisfy firstcondition of equilibrium, if rightward forces are positive, leftward forcesmust be:
  • positive
  • doubled
  • negative Correct
  • halved
Tofind the resultant vector's magnitude, use the _________ theorem
  • Pythagorean Correct
  • Trigonometric
  • Polygon
  • Parallelogram
Torque is defined as the cross product of the lever arm distance vector and the force vector.
  • True Correct
Torque is definedas the cross product of the lever arm distance vector and the force vector.
  • True Correct
  • False
Two students are balancing on a 10m seesaw.The seesaw is designed so that each so that each side of the seesaw is 5m long.The students on the left weight 60kg and standing 3m away from the center. Thestudent on the right weighs 45kg. The seesaw is parallel to the ground. Assumethe board that makes the seesaw is massless. What distance from the center should thestudent on the right be if they want the seesaw to stay parallel to the ground?
  • 5 m
  • 4 m Correct
  • 6 m
  • none of the choices
Two vectors A and B are added by drawing the arrows which represents the vector in such a way that the initial point of B is on the terminal point of A. The resultant C = A + B, is the vector from the initial point of A to the terminal point of B.
  • Polygon Method Correct
Two vectors A and Bare added by drawing the arrows which represents the vector in such a way thatthe initial point of B is on the terminal point of A. Theresultant C = A + B, is the vector from the initial point of A tothe terminal point of B.
  • Parallelogram Method
  •  Head-to-Tail Method
  •  Polygon Method Correct
  • Trigonometric Method
Two weightless bars pinned together as shown in thefig-15 from the LIST OF FIGURE in Week-1 support a load of 35 kN. Determine the forces P and F acting respectively alongbars AB and AC that maintain equilibrium of pin A. 
  • P = 90014 kN, F = 403 kN
  • P = 9014 kN, F = 6403 kN Correct
  • none of the choices
  • P =914 kN, F = 603 kN
Types of Si units which is the simple measurement for time, length, mass, temperature, amount of substance, electric current, and light intensity.
  • Metric unit
  • Base unit Correct
  • derived units
  • None of the choices
Varignon’s Theorem states that the sum of torques due to several forces applied to a single point is equal to the torque due to the sum (resultant) of the forces
  • True Correct
What distance from the center should the student on the right be if they want the seesaw to stay parallel to the ground?
  • 4 m Correct
What does NIST stands for?
  • None of the choices
  • National Institute of Standards and Technology  Correct
  • Nation Institute of Standard and Technology
  • National Institute of Science and Technology
What force is necessary to generate a 20.0 N*m torque at an angle of 50 degrees from along a 3.00 m rod?
  • 3 N (wrong) Correct
What force is necessaryto generate a 20.0 N*m torque at an angle of 50 degrees from along a 3.00 mrod?
  • 3 N
  • 23 N
  • none of the choices
  • 2 N Correct
What is French name for International System of Unit
  • None of the choices
  • Systeme d' Unites
  • Systeme International d' Unites Correct
  • International Systeme
What is Friends language name of International System of Unit
  • Systeme International d' Unites Correct
What is the acronym of BTU in pressure?
  • British Thermal Units Correct
What is the acronym of NIST?
  • National Institute of Standards and Technology Correct
What is the acronym of NPL?
  • National Power Laboratory
  • National Physical Laboratory Correct
  • None of the choices
  • Nation Physical Laboratory
What is the boiling point of water at sea level?
  • 0 centigrade
  • 100 centigrade Correct
  • none of the choices
  • 30 centigrade
What is the magnitude of the sum of the two forces shown in the diagram below?
  • 46 N Correct
What is the standard unit of force? The SI for torque is _______________
  • N⋅m Correct
Whatis the magnitude of the sum of the two forces shown in the diagram below?                               
  • 102 N
  • 46 N Correct
  • 137 N
  • 142 N
When displacement is plotted against time, the result will be a _________?
  • harmonic curve Correct
When displacement is plottedagainst time, the result will be a _________?
  • harmonic curve Correct
  • period
  • displacement
  • simple pendulum
When elastic bodies vibrate they produce the simplest type of periodic motion.
  • simple harmonic motion or SHM Correct
When the cycle in harmonic curve is repeated successively the result will be a series of__________?
  • waves Correct
When the cycle in harmoniccurve is repeated successively the result will be a series of__________?
  • none of the choices
  • waves Correct
  • period
  • displacement
You are helping your aunt move a piano on wheels from one room to another. When you push the piano horizontally, it moves at constant speed. What can you say about the piano?
  • It is in equilibrium because it experiences net force opposite to the friction force Correct
You are helping your aunt move a piano on wheels fromone room to another. When you push the piano horizontally, it moves at constantspeed. What can you say about the piano?
  • It is indynamic equilibrium
  • It is inequilibrium because it doesn=E2=80=99t experience a friction force
  • It is in equilibriumbecause it experiences net force opposite to the friction force Correct
  • It is instatic equilibrium
This course is taught by the mentor:
Professor Leonila Lastimosa

Leonila Lastimosa

Doctor of Medicine at University of San Jose.

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