Name ___________________________
Date ______________________
Regents Physics
Mass-Energy Equivalence
1. A helium atom consists of two protons, two electrons, and two
neutrons. In the helium atom, the strong force is a fundamental
interaction between the
A) electrons, only
C) neutrons and electrons
B) electrons and protons
D) neutrons and proton
2. The force that holds protons and neutrons together is known as
the
A) gravitational force
C) magnetic force
B) strong force
D) electrostatic force
3. What type of nuclear force holds the protons and neutrons in an
atom together?
A)
B)
C)
D)
6. What total mass must be converted into energy to produce a
gamma photon with an energy of 1.03 × 10–13 joule?
A) 1.14 × 10–30 kg
C) 3.09 × 10–5 kg
B) 3.43 × 10–22 kg
D) 8.75 × 1029 kg
7. The total conversion of 1.00 kilogram of the Sun’s mass into
energy yields
A) 9.31 × 102 MeV
C) 3.00 × 108 J
B) 8.38 ×1019 MeV
D) 9.00 × 1016 J
8. Which graph best represents the relationship between energy and
mass when matter is converted into energy?
A)
a strong force that acts over a short range
a strong force that acts over a long range
a weak force that acts over a short range
a weak force that acts over a long range
4. Base your answer to the following question on the cartoon below
and your knowledge of physics.
B)
C)
D)
In the cartoon, Einstein is contemplating the equation for the
principle that
A) the fundamental source of all energy is the conversion of mass
into energy
B) energy is emitted or absorbed in discrete packets called
photons
C) mass always travels at the speed of light in a vacuum
D) the energy of a photon is proportional to its frequency
5. What is the minimum total energy released when an electron and
its antiparticle (positron) annihilate each other?
A)
C)
B)
D)
9. The energy equivalent of the rest mass of an electron is
approximately
A) 5.1 × 105 J
C) 2.7 × 10–22 J
B) 8.2 × 10–14 J
D) 8.5 × 10–28 J
10. If a deuterium nucleus has a mass of 1.53 × 10–3 universal mass
units less than its components, this mass represents an energy of
A) 1.38 MeV
C) 1.53 MeV
B) 1.42 MeV
D) 3.16 MeV
11. What is the energy equivalent of a mass of 0.026 kilogram?
A) 2.34 × 1015 J
C) 2.34 × 1017 J
B) 2.3 × 1015 J
D) 2.3 × 1017 J
12. The graph below represents the relationship between mass and
its energy equivalent
The slope of the graph represents
A)
B)
C)
D)
the electrostatic constant
gravitational field strength
the speed of light squared
Planck's constant
Answer Key
Mass-Energy Equivalence
1.
D
2.
B
3.
A
4.
A
5.
A
6.
A
7.
D
8.
A
9.
B
10.
B
11.
B
12.
C