- 1. Who discovered radioactivity?
A) Marie Curie
B) Isaac Newton
C) Henri Becquerel
D) Albert Einstein
- 2. What element did Henri Becquerel use in his experiments on radioactivity?
A) Uranium
B) Gold
C) Copper
D) Silver
- 3. What is the SI unit of radioactivity named after Henri Becquerel?
A) Curie (Ci)
B) Sievert (Sv)
C) Gray (Gy)
D) Becquerel (Bq)
- 4. What branch of science studies radioactivity?
A) Astronomy
B) Botany
C) Zoology
D) Nuclear physics
- 5. What is the process by which an unstable atomic nucleus loses energy by emitting radiation called?
A) Fission
B) Radioactive decay
C) Fusion
D) Transmutation
- 6. The discovery of radioactivity led to the development of:
A) Nuclear power
B) Telecommunications
C) Plastic surgery
D) Agricultural fertilizers
- 7. What is the unit of measurement used to quantify the biological effects of ionizing radiation on humans?
A) Curie (Ci)
B) Sievert (Sv)
C) Hertz (Hz)
D) Tesla (T)
- 8. Who shared the Nobel Prize in Physics with Becquerel and Marie Curie for their work on radioactivity?
A) Max Planck
B) Ernest Rutherford
C) Richard Feynman
D) Pierre Curie
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