GIZMOS STUDENT EXPLORATION BIG BANG
THEORY HUBBLE’S LAW EXAM SCRIPT 2026
TEST PAPER QUESTIONS AND SOLUTIONS
GRADED A+
◉ Doppler Effect. Answer: A change in light wavelength caused by
the motion of the source moving toward or away from the observer.
◉ Hubbles Law. Answer: Evidence of the Big Bang Theory proves
that the universe is expanding. The farther away a galaxy is, the
faster it is moving
◉ Red Shift. Answer: A shift toward longer wavelengths of the
spectrum. The shift is caused by the object, which is emitting the
waves, moving away from Earth. All stars and galaxies(except for
Andromeda) are moving away from earth--Evidence of The Big Bang
Theory (Hubble's Law)
◉ Cosmic Background Radiation. Answer: Evidence of the Big Bang
Theory. Left over heat energy from the Big Bang is observable at all
points in space. The energy started as light but has shifted to
microwaves and radio waves due to the continual expansion of the
universe.
, ◉ Time of Big Bang. Answer: 13.8 billion years ago
◉ Age of Universe. Answer: ~13.8 billion years old
◉ First two elements created. Answer: Evidence of the Big Bang
Theory. Hydrogen and Helium because they are the simplest, lightest
elements with the least number of protons, neutrons, electrons.
◉ Big Bang. Answer: All matter and space were created from a single
point of pure energy in an instant.
◉ Composition of Early Universe. Answer: 75% Hydrogen and 25%
Helium
Evidence for the Big Bang because current measurements match
with the predicted composition of the universe.
◉ How did atoms form?. Answer: Universe had to cool, electrons
could then slow down and join nuclei (protons and neutrons) to
form a complete atom/element. First elements were hydrogen and
helium (simplest).
◉ Singularity. Answer: The infinitely small, dense space that all
matter and energy in the universe existed before the Big Bang
THEORY HUBBLE’S LAW EXAM SCRIPT 2026
TEST PAPER QUESTIONS AND SOLUTIONS
GRADED A+
◉ Doppler Effect. Answer: A change in light wavelength caused by
the motion of the source moving toward or away from the observer.
◉ Hubbles Law. Answer: Evidence of the Big Bang Theory proves
that the universe is expanding. The farther away a galaxy is, the
faster it is moving
◉ Red Shift. Answer: A shift toward longer wavelengths of the
spectrum. The shift is caused by the object, which is emitting the
waves, moving away from Earth. All stars and galaxies(except for
Andromeda) are moving away from earth--Evidence of The Big Bang
Theory (Hubble's Law)
◉ Cosmic Background Radiation. Answer: Evidence of the Big Bang
Theory. Left over heat energy from the Big Bang is observable at all
points in space. The energy started as light but has shifted to
microwaves and radio waves due to the continual expansion of the
universe.
, ◉ Time of Big Bang. Answer: 13.8 billion years ago
◉ Age of Universe. Answer: ~13.8 billion years old
◉ First two elements created. Answer: Evidence of the Big Bang
Theory. Hydrogen and Helium because they are the simplest, lightest
elements with the least number of protons, neutrons, electrons.
◉ Big Bang. Answer: All matter and space were created from a single
point of pure energy in an instant.
◉ Composition of Early Universe. Answer: 75% Hydrogen and 25%
Helium
Evidence for the Big Bang because current measurements match
with the predicted composition of the universe.
◉ How did atoms form?. Answer: Universe had to cool, electrons
could then slow down and join nuclei (protons and neutrons) to
form a complete atom/element. First elements were hydrogen and
helium (simplest).
◉ Singularity. Answer: The infinitely small, dense space that all
matter and energy in the universe existed before the Big Bang
