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