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Select Lessons (39)
Dynamics: Newton’s Laws of Motion
ELECTRICITY: Current
ELECTRICITY: Current
ELECTRICITY: Resistance
Elasticity
Electric fields
Electromagnetism
Electromagnetism
Energy: Application And Uses
Experimental physics
Forces
Gravitational fields
Heat
Kinematics in Two Dimensions: Vectors, projectiles
Kinematics in one dimension
Linear Momentum
MOTION
MOTION
MOTION
MOTION
MOTION
MOTION: Circular
MOTION: Collision
MOTION: Inclined plane
MOTION: Simple harmonic motion (SHM)
Magnetism
Optics
PLASTICS
PRESSURE
Radioactivity
TEMPERATURE
The Laws of Thermodynamics
Units System
Units System
Units, dimensions and homogeneity
WAVES: Electromagnetic
WAVES: Electromagnetic
WAVES: Sound
5/32 MCQs for:
Linear Momentum
A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the magnitude of the average collision force is correct?
The truck experiences the greater average force.
The small car and the truck experience the same average force.
It is impossible to tell since the masses and velocities are not given.
The small car experiences the greater average force.
What is the SI unit of momentum?
N/s
Nm.
Ns.
N/m
A very heavy object moving with speed v collides head-on with a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the light object after the collision?
Nearly v.
Nearly 2v.
Nearly 3v.
Nearly infinite.
Consider two unequal masses, M and m. Which of the following statements is false?
The center of mass is closer to the larger mass.
The center of mass lies on the line joining the centers of each mass.
It is possible for the center of mass to lie within one of the objects.
If a uniform rod of mass m were to join the two masses, this would not alter the position of the center of mass of the system without the rod present.
Which of the following is an accurate statement?
If the kinetic energy of an object is doubled, its momentum will also double.
The momentum of a projectile is constant.
The momentum of a moving object is constant.
If an object is acted on by a non-zero net external force, its momentum will not remain constant.
