Grade 9 · Physics
This quiz helps revise “Atoms and nuclei” in Physics for grade 9. It has 25 questions in five categories: Atomic structure, Discoveries, Radiation types, Decay and time, Nuclear energy. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
What sign is the charge of the atomic particle that moves around the nucleus?
What sign does the electric charge of an atomic nucleus have?
What single term means…
In the gameWhat determines the atomic…
In the gameTwo atoms each have…
In the gameWho proposed the nuclear model of the atom in 1911 after scattering experiments?
What metal was used as the thin foil in the famous particle-scattering experiment?
Who discovered natural radioactivity…
In the gameWhich married scientists discovered…
In the gameIn a thin-foil experiment…
In the gameWhat simple material is enough to stop alpha particles?
Which particles make up beta-minus radiation?
What is an…
In the gameWhat is gamma…
In the gameWhich dense metal is…
In the gameWhat is the time for half the radioactive nuclei in a sample to decay called?
What physical quantity is defined by the number of nuclear decays per unit time?
After three successive halvings…
In the gameWhich radionuclide is used…
In the gameBy how much does…
In the game
What is the splitting of a heavy atomic nucleus into smaller ones with energy release called?
What is the combining of light atomic nuclei into a heavier one with energy release called?
What is the process…
In the gameWhich uncharged particle can…
In the gameWhat form of energy…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.