ESAS · Question Bank

Physics

200 questions · page 5 of 10. Answer in your head first, then check the solution.

#81
What particles will experience tangential accelerations?
AThose particles whose angular speed changes
BThose particles whose angular speed remains constant
CAll particles
DThose particles whose angular speed is zero
#82
The ________ of a body about a given axis is the product of the magnitude of the force and the perpendicular distance from the line of action of the force to the axis
Ainertia
Bmass moment
Ctorque
Dmoment
#83
The ________ of a body about a given axis is the rotational analog of mass of the body is ditributed about the axis
Amoment of mass
Bmoment of area
Cmoment of inertia
Dtorque
#84
When the forces that act on an object have a vector sum of zero, the object is said to be in ________
Aunstable equilibrium
Bstable equilibrium
Crotational equilibrium
Dtranslational equilibrium
#85
Which of the ff is an example of a neutral equilibrium?
AA cone balanced on its apex
BA cone balanced on its base
CA cone balanced on its side
DA cone balanced on the circumference of its base
#86
Which of the ff is an example of a stable equilibrium?
AA cone balanced on its apex
BA cone balanced on its base
CA cone on its side
DA cone balanced on the circumference of its base
#87
A device that transmits force or torque is called __________
Amechanical tool
Bmachine
Caxle
Dwedge
#88
If a cone is balanced on its apex, it illustrates what type of equilibrium?
Astable equilibrium
Bneutral equilibrium
Cunstable equilibrium
Dtranslational equilibrium
#89
When the net torque acting on an object is zero, the object is in _________
Aunstable equilibrium
Bstable equilibrium
Crotational equilibrium
Dtranslational equilibrium
#90
What is the average pressure of the earth's atmosphere at sea level?
A1.042 bar
B1.021 bar
C1.013 bar
D1.037 bar
#91
"An external pressure exerted on a fluid is transmitted uniformly throughout the volume of the fluid" This is known as
ABernoulli's energy theorem
BPascal's principle
CArchimedes principle
DReynold's principle
#92
The hydraulic press is an instrument which uses one of the ff theorems. Which one?
ABernoulli's energy theorem
BPascal's principle
CArchimedes principle
DReynold's principle
#93
The hydrometer is an instrument which uses one of the ff theorems. Which one?
ABernoulli's energy theorem
BPascal's principle
CArchimedes principle
DReynold's principle
#94
The hydrometer is an instrument used to measure _________
Apressure of a liquid
Bdensity of a liquid
CReynold's number
Dviscosity of liquid
#95
The maximum displacement of an object undergoing harmonic motion on either side of its equilibrium position is called the _______ of the motion
Afrequency
Boscillation
Cperiod
Damplitude
#96
What quantity is often used in describing harmonic motion?
AAmplitude
BFrequency
CPeriod
DOscillation
#97
The period of the simple harmonic motion is ________ its amplitude
Adirectly proportional
Binversely proportional
Cequal to
Dindependent of
#98
What refers to an oscillatory motion that occurs whenever a restoring force acts on a body in the opposite direction to its displacement from its equilibrium position, with the magnitude of the restoring force proportional to the magnitude of the displacement?
ADamped harmonic motion
BPendulum
CSimple harmonic motion
DDamped harmonic oscillation
#99
In a damped harmonic oscillator, what reduces the amplitude of the vibrations?
AForce
BPeriod
CFrequency
DFriction
#100
The ________ of a pivotal object is that point at which it can be strucked without producing a reaction force on its pivot.
Acenter of gravity
Bcenter of oscillation
Caxis of oscillation
Dcenter of mass

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