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Physical Science Hard Facts

Physical Science

A challenging collection of historical and quantitative facts in physics and chemistry.

physics chemistry science-history

10 Questions Hard Ages 18+ Aug 23, 2026

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About this Study Set

This study set covers Physical Science through 10 practice questions. A challenging collection of historical and quantitative facts in physics and chemistry. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the Physical Science Hard Facts study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 In what year did Ernest Rutherford publish his discovery of the atomic nucleus based on the gold foil experiment?

A 1909
B 1911
C 1913
D 1919

2 What is the precise value of the speed of light in a vacuum as defined by the SI system in meters per second?

A 299,792,458
B 299,792,456
C 300,000,000
D 299,794,580

3 Which scientist is credited with the 1869 publication of the first widely recognized periodic table of elements?

A John Newlands
B Julius Lothar Meyer
C Dmitri Mendeleev
D Henry Moseley

4 What is the atomic number of the element Darmstadtium, which was first synthesized in 1994?

A 108
B 110
C 112
D 114

5 In 1900, Max Planck introduced the constant h to solve the ultraviolet catastrophe; what is its approximate value in Joule-seconds?

A 6.626 x 10^-34
B 1.381 x 10^-23
C 8.854 x 10^-12
D 1.602 x 10^-19

6 How many elements were officially recognized as having stable isotopes when the first standard atomic weight table was published by the IUPAC?

A 72
B 80
C 84
D 92

7 Who was the first person to measure the gravitational constant G with significant accuracy in 1798?

A Isaac Newton
B Henry Cavendish
C Charles-Augustin de Coulomb
D Pierre-Simon Laplace

8 What is the triple point temperature of water on the Kelvin scale, as defined by the ITS-90 standard?

A 273.15 K
B 273.16 K
C 273.17 K
D 273.18 K

9 In 1932, James Chadwick discovered which subatomic particle by bombarding beryllium with alpha particles?

A Positron
B Neutron
C Muon
D Neutrino

10 What is the exact number of atoms in one mole of a substance, known as the Avogadro constant, defined since 2019?

A 6.022 x 10^23
B 6.02214076 x 10^23
C 6.02214179 x 10^23
D 6.023 x 10^23

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