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WorksheetsMass Energy Equivalence
Total questions: 15
Worksheet time: 8mins
In the equation E = mc2 what does the E stand for?
energy
efficiency
exertion
endurance
In the equation E = mc2 what does the variable C represent?
change
compression
speed of light
speed of sound
What is an example of mass converting to energy?
a car running on gasoline
a battery powering a flashlight
a person lifting a heavy object
nuclear power plant generating electricity
What is an important difference of classical and modern physics as it relates to mass and energy?
Classical physics is concerned only with macroscopic objects, while modern physics deals with subatomic particles
In classical physics, mass and energy are both measured in the same units, while in modern physics, they are measured in different units
In classical physics, mass is conserved while energy is not, but in modern physics, both mass and energy are conserved
Modern physicists think of mass as a type of energy. The total mass and energy of a system remains unchanged.
Who created the equation E = mc2?
Niels Bohr
Albert Einstein
Isaac Newton
Galileo Galilei
What is E = mc2 also known as?
Law of Conservation of Energy
Coulomb's Law
Mass-energy equivalence
Zeroth's Law
What is the energy in the equation E = mc2 also known as? rest-mass energy of any particle.
kinetic energy
potential energy
thermal energy
rest-mass energy
One gram of any substance has a rest-mass energy of _____?
9 x 1013 J
913 J
9000 J
9 x 10-13
Why can't we access the large rest-mass energy inherent in all particles?
only accessible in highly controlled laboratory conditions
too dangerous to harness
rest-mass energy of particles is a theoretical concept and cannot be observed in the real world
most of the atoms in the world around us are very stable
The difference between the mass of the atom and the sum of the masses of its parts is called the _______.
mass-defect
electron affinity
isotope
fission paradox
Light has both characteristics of a wave and a _____?
magnet
charge
force
particle
What is the type of force responsible for the difference between the mass of an atom and the sum of the masses of its individual protons, neutrons, and electrons or its mass-defect.
Strong Force
Weak Force
Gravitational Force
Electromagnetic Force
Albert Einstein proposed that light is composed of discrete, separate packets or quanta which later came to be called _______?
electrons
photons
quarks
particulates
Heinrich Hertz observed a property of light called the ________ effect. Under certain conditions, electromagnetic radiation causes materials to emit electrons. The electrons are emitted only if the frequency of the radiation is above a certain level.
tetragrammic
photoelectric
threshold
Hertz
The emission spectrum of an element depends upon the configuration of its ______.
protons
neturons
electrons
atomic mass
