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WorksheetsEngineering Physics Quiz
Total questions: 20
Worksheet time: 10mins
The unit of moment of inertia is
kg/m
kg-m2
m4
m3
The M.I. of circular disc about an axis through its centre perpendicular to its plane, is
MR3/4
R4/12
MR2/2
M R4/8
Moment of inertia is a scalar quantity
Scalar quantity
Vector quantity
Optical quantity
Magnetic quantity
Moment of inertia of a circular disc about its diameter
MR2 /4
MR4/2
2/5 MR2
2/4 MR2
Moment of inertia of circular disc about a tangent
MR2
2/3 MR2
MR4/2
5/4 MR2
The moment of inertia of the solid cylinder about its axis of symmetry is
Mr2/2
Mr2
2/3 Mr2
2/5 Mr2
The moment of inertia of a solid cylinder about the axis passing through its centre and perpendicular to its own axis of symmetry is
𝑀 (𝑅2/ 4 + 𝑙2/ 12)
𝑀 (𝑅2/ 4)
𝑀 (𝑅2/ 8 + 𝑙2/ 2)
𝑀 (𝑅2/ 4 + 𝑙2/ 8)
The formula of radius of gyration
k2 = I/M
k2 = I2/M
k2 = I2/M2
k2 = (I/M)1/2
The unit of radius of gyration?
m4
m
N
m2
Moment of inertia of a diatomic molecule about an axis passing through the centre of the diatomic molecule and perpendicular to bond length is
product of mass of molecule
sum of mass of molecule and square of bond length
product of mass of molecule and square of bond length.
square of bond length
The atmosphere around the earth is held by
Gravity
Winds
Clouds
Water
Which of the following is Newton's Law on Gravitation?
F=Gm1m2/r
F = Gm1m2/r2
F = Gm1m2/2r
F = m1m2/2r
What states that "every object in the universe attracts every other object"?
Law of Universal Gravitation
Newton's First Law of Motion
Newton's second law
Inertia & gravity
Vehicles are made heavy at the base in order to
decrease center of gravity
increase center of gravity
decrease weight
increase weight
If the force is applied at the center of mass then torque is
maximum
zero
1
infinity
Point where force causes system to move without rotation is
center of mass
mid point of body
edge of the body
right of the body
Which component of linear momentum does not contribute to angular momentum
Horizontal component
Vertical component
Radial component
Tangential component
A stone is just released from the window of a train moving along a horizontal straight track. The stone will hit the ground following
Hyperbolic path
Straight path
Circular path
Parabolic path
The motion of the rocket is based on
Mass
Linear Momentum
Kinetic Energy
Angular Momentum
The law of conservation of momentum states that the sum of momenta of two objects before collision is equal to the sum of momenta after the collision provided that ______
No internal unbalanced force acts on them.
No external unbalanced force acts on them.
No external balanced force acts on them.
No internal balanced force acts on them.
