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Worksheetsscie 2
Total questions: 20
Worksheet time: 10mins
When did the universe begin according to the Big Bang Theory?
13.8 billion years ago
4.6 billion years ago
What was the initial state of the universe before expansion?
A singularity
A large galaxy
Who proposed the idea that the universe started from a single point?
Georges Lemaître
Edwin Hubble
What evidence shows that galaxies are moving away from us?
Redshift
Black holes
What is the approximate temperature of the CMB today?
273 Kelvin
2.7 Kelvin
What percentage of the universe is dark energy?
4.6%
71.4%
Which scientist discovered that galaxies are receding?
Edwin Hubble
James Chadwick
Who first introduced the concept of atomism?
Aristotle
Democritus
What does 'atomos' mean?
Uncuttable
Divisible
Which philosopher believed matter is continuous
Aristotle
Empedocles
Who discovered the electron?
Chadwick
Thomson
Who discovered the neutron?
Thomson
Chadwick
Which atomic model describes electrons in fixed energy levels?
Bohr’s Model
Thomson’s Model
Which model introduced orbitals instead of fixed paths?
Plum Pudding Model
Quantum Mechanical Model
What is the charge of a proton?
Negative
Positive
Which particle has no charge?
Proton
Neutron
Who introduced experimental methods in alchemy?
Democritus
Jabir ibn Hayyan
What did Rutherford conclude about the atom?
Atom has no nucleus
Atom is mostly empty space
Which element was most abundant after the Big Bang?
Helium
Hydrogen
What does the Cosmic Microwave Background (CMB) represent?
Radiation from black holes
Remnant heat from the Big Bang
