In: Physics
Which of the following statements are true about relativistic mass, momentum and energy?
T or F? according to Einstein, a particle at rest has no energy at all
T or F? if a particle of rest mass m0 were entirely converted into energy, it would yield an energy of (m0)(c^2)
T or F? if it were possible to accelerate a particle near the speed of light, its relativistic mass would approach infinity
T or F? the relativistic expression for kinetic energy is the same as the classical (non-relativistic) equation for kinetic energy
T or F? when a particle moves at high speed, its relativistic mass is the same as its rest mass
Which of the following statements are true about relativistic mass, momentum and energy?
T or F? according to Einstein, a particle at rest has no energy at all :
F
Reason : Particle at rest has rest mass energy = moc2
T or F? if a particle of rest mass m0 were entirely converted into energy, it would yield an energy of (m0)(c^2)
T
T or F? if it were possible to accelerate a particle near the speed of light, its relativistic mass would approach infinity
T
Reason : Since, m = mov (1 - v2/c2)-1/2
when v = c , then m = infinite
T or F? the relativistic expression for kinetic energy is the same as the classical (non-relativistic) equation for kinetic energy
F
Reason : K.E in classical mechanics = 0.5 mv2
K.E. in relativistic concepts = 0.5 mov (1 - v2/c2)-1/2
T or F? when a particle moves at high speed, its relativistic mass is the same as its rest mass
F
Reason: m (at speed v) = mov (1 - v2/c2)-1/2