Mass-Energy Equivalence
Physics ⇒ Modern Physics
Mass-Energy Equivalence starts at 11 and continues till grade 12.
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Describe how mass-energy equivalence is demonstrated in particle accelerators.
Describe one real-world application of mass-energy equivalence.
Explain the significance of the speed of light squared (c2) in the mass-energy equivalence equation.
Explain why the energy released in chemical reactions is much less than in nuclear reactions, in terms of mass-energy equivalence.
Explain why the mass of a hot object is slightly greater than when it is cold, according to mass-energy equivalence.
Explain why the mass of a nucleus is less than the sum of the masses of its individual nucleons.
In the equation E = mc2, what does 'c' represent?
State the mass-energy equivalence formula.
Which of the following best describes the relationship between mass and energy?
(1) They are completely independent.
(2) They are related by a constant factor.
(3) Mass can be converted to energy and vice versa.
(4) Only energy can be converted to mass.
Which of the following best explains why the sun shines?
(1) Chemical reactions in the sun's core
(2) Conversion of mass to energy via nuclear fusion
(3) Gravitational contraction
(4) Reflection of light from other stars
Which of the following is a direct implication of E = mc2?
(1) Massless particles cannot have energy.
(2) Energy and mass are conserved separately.
(3) Mass can be created from energy.
(4) The speed of light is variable.
Which of the following is NOT a consequence of mass-energy equivalence?
(1) Nuclear fission releases energy.
(2) Chemical reactions can produce energy from mass.
(3) The mass of a bound system is less than the sum of its parts.
(4) Energy has inertia.
Fill in the blank: According to Einstein's theory, the rest energy of a particle is given by _______.
Fill in the blank: The energy equivalent of 1 atomic mass unit (u) is approximately ______ MeV.
Fill in the blank: The mass defect in a nucleus is responsible for its ______ energy.
Fill in the blank: The principle of mass-energy equivalence is a consequence of the theory of _______.
True or False: According to mass-energy equivalence, energy has mass.
True or False: The energy released in nuclear fusion is due to the conversion of mass into energy.
True or False: The mass of a system remains constant even if energy is added to it.
True or False: The mass-energy equivalence principle applies only to nuclear reactions.
