IGCSE Radioactivity

The rate at which a radioactive element decays is its ____.

• quarter life
• whole life
• wonderful life 
• half life

Tags

NGSS.HS-PS1-8

In a nuclear reactor, electricity is produced from what element?

• Plutonium
• Uranium 235
• Radon 220
• Lead 232

Tags

NGSS.HS-PS1-8

Both a fusion reaction and a fission reaction produce

• Kinetic energy

• Chemical energy

• sound energy

• Thermal energy

what's the half life of this substance?

• 1 day
• 2 days
• 3 days
• 4 days

Tags

NGSS.HS-PS1-8

___________ Is the use of radioactivity in agriculture to sterilize food. 

• Pasteurization
• Irradiation
• Fission
• Decay

Name the instrument used to detect radioactivity.

• voltmeter
• ohmeter
• seismograph
• geiger counter

Tags

NGSS.HS-PS1-8

Which type of radiation is the most penetrating?

• Alpha
• Beta
• Gamma

In order of most to least penetrating radiation we have

• Alpha , Beta,  Gamma
• Beta , Gamma , Alpha
• Gamma, Beta, Alpha
• Gamma, Alpha, Beta

If we start off with element ₂₄X⁵⁰ after a beta decay we get another element Y that looks like

• ₂₃Y⁵⁰
• ₂₂Y⁴⁶
• ₂₅Y⁵⁰
• ₂₄Y⁵⁰

If we start off with element ₂₄X⁵⁰ after an alpha decay we get another element Y that looks like

• ₂₂Y⁵⁰
• ₂₂Y⁴⁶
• ₂₀Y⁴⁸
• ₂₆Y⁵⁴