#1
Which of the following is a fundamental quantity in classical mechanics?
Velocity
Energy
Temperature
Charge
#2
What is Hooke's Law related to?
Electric circuits
Elasticity of materials
Fluid dynamics
Thermal expansion
#3
In classical mechanics, what does the term 'inertia' refer to?
The resistance of an object to changes in its state of motion
The force required to maintain an object's motion
The ability of an object to float in a fluid
The friction between two surfaces in contact
#4
Which law of motion is expressed by the equation F = ma?
Newton's First Law
Newton's Second Law
Newton's Third Law
Law of Universal Gravitation
#5
Which of the following is a scalar quantity?
Velocity
Force
Acceleration
Distance
#6
What is Newton's second law of motion?
Every action has an equal and opposite reaction
The rate of change of momentum is proportional to the applied force
An object at rest stays at rest, and an object in motion stays in motion with a constant velocity
The force between two point masses is directly proportional to the product of their masses and inversely proportional to the square of the distance between them
#7
What is work done in physics?
A measure of energy transfer that occurs when an object is moved
The force applied to an object divided by the object's displacement
The product of mass and acceleration
The force acting on an object times the time it is applied
#8
What is the principle of conservation of angular momentum?
The total angular momentum of a system is constant if no external torque acts on it.
Angular momentum is always conserved in rotational motion.
Angular momentum can only be conserved in linear motion.
Angular momentum is always increasing in a closed system.
#9
What is the formula for gravitational potential energy?
PE = mgh
PE = 1/2 mv^2
PE = Fd
PE = -GmM/r
#10
What is the equation for torque (moment of force) in classical mechanics?
Torque = Force / Time
Torque = Force × Distance
Torque = Mass × Acceleration
Torque = Work / Angle
#11
In the context of classical mechanics, what is a conservative force?
A force that causes motion in the direction of the applied force
A force that depends only on the initial and final positions of an object
A force that increases the kinetic energy of an object
A force that is always perpendicular to the velocity of an object
#12
What is the principle of virtual work?
The work done by a system is equal to the change in its kinetic energy
A system is in equilibrium when the virtual work done by external forces is zero for any virtual displacement
The work done by friction is always positive
The total work done in a closed system is always zero
#13
Which of the following is a non-contact force in classical mechanics?
Frictional force
Tension force
Gravitational force
Normal force
#14
What is the principle of least action in classical mechanics?
Objects always follow the path of least resistance.
The total action in a system is minimized for the actual motion taken by the system.
The action of a system is always equal to the total energy of the system.
Objects always move along the path of greatest action.
#15
In classical mechanics, what does the term 'impulse' refer to?
The rate of change of velocity
The force acting on an object
The time it takes for an object to change its motion
The product of force and time