"The work done by the net force on a particle equals the change in the particle's kinetic energy". This statement is known as _________
ALaw of conservation of energy
BWork-energy theorem
CLaw of conservation of work
DTotal work theorem
ESAS · Question Bank
Physics
107 of 236 questions match · page 2 of 6. Answer in your head first, then check the solution.
The _______ of a particle is equal to the total work that particle can do in process of being brought to rest
Akinetic energy
Bpotential energy
Ctotal energy
Dmechanical energy
What is the maximum value of the static friction?
AStarting friction
BSliding friction
CKinetic friction
DDynamic friction
What is TRUE between kinetic friction and static friction?
AKinetic friction is always equal to static friction
BKinetic friction is always less than static friction
CKinetic friction is always greater than static friction
DKinetic friction is equal to or greater than static friction
For the same materials in contact, what is TRUE between coefficient of static friction and coefficient of kinetic friction?
ACoefficient of static friction is always less than the coefficient of kinetic friction
BCoefficient of static friction is always equal to the coefficient of kinetic friction
CCoefficient of static friction is always greater than the coefficient of kinetic friction
DCoefficient of static friction may be greater than or less than the coefficient of kinetic friction
When the vector sum of the external forces acting on the system of particles equals to zero, the total linear momentum of the system ________
Abecomes zero
Bmaximizes
Cchanges abruptly
Dremains constant
What is conserved in an elastic collision?
AKinetic energy
BPotential energy
CRest energy
DMechanical energy
When can we say that a collision is a completely inelastic collision?
AWhen the kinetic energy lost is minimum
BWhen the kinetic energy is conserved
CWhen the two colliding objects sticks together after impact
DWhen the two colliding objects will separate after impact
What will happen to the kinetic energy if it is a completely inelastic collision?
AIt is conserved
BIt is lost to maximum value
CIt is gained from the loss of potential energy
DIt is lost to minimum value
Coefficient of restitution is the ratio of:
Arelative speed after collision to relative speed before collision
Brelative speed before collision to relative speed after collision
Crelative speed to absolute speed
Dabsolute speed to relative speed
"When the vector sum of the external forces acting on a system of particles equals to zero, the total linear momentum of the system remains constant" This statement is known as:
ALaw of universal gravitation
BLaw of conservation of impulse
CLaw of conservation of momentum
DLaw of conservation of energy
The centripetal force is:
Adirected away from the center of the curvature of the path
Bdirected toward the center of curvature of the path
Ctangent to the curvature of the path
Deither directed away or toward the center of curvature of the path
The centripetal acceleration of a particle in uniform motion is ________ the radius of its path
Adirectly proportional
Binversely proportional
Cequal
Dnot related in any way
"Every object in the universe attracts every other with a force directly proportional to the product of their masses and inversely proportional to the square of the distance separating them" This is known as
ALaw of conservation of energy
BLaw of universal gravitation
CLaw of conservation of momentum
DLaw of conservation of impulse
The gravitational force of the earth on an object varies ________ the distance of the object from the center of the earth
Ainversely as
Binversely as the square of
Cdirectly as
Ddirectly as the square of
Angular momentum is the product of ________
Amoment of inertia and linear speed
Bmoment of area and angular speed
Cmoment of inertia and angular speed
Dmoment of area and angular speed
"When the sum of the external torques acting on a system of particles is zero, the total angular momentum of the system remains constant" This is known as
AConservation of energy
BConservation of impulse
CConservation of linear momentum
DConservation of angular momentum
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
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
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