Radioactivity

Where does radioactivity have application in our lives?

• Medicine
• Energy (electricity)
• Agriculture
• All of the above

Tags

NGSS.HS-ESS3-2

NGSS.HS-ETS1-1

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

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

Tags

NGSS.HS-PS1-8

Energy in the sun is produced as a result of nuclear ____ reactions.

• fusion
• fission
• waste
• sub

Tags

NGSS.HS-PS1-8

NGSS.HS-ESS1-1

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

• Plutonium
• Uranium 235
• Radon 220
• Lead 232

Tags

NGSS.HS-PS1-8

The process by which nuclei having small masses are united to form a single larger nucleus is called nuclear ____.

• fusion
• fission
• reactivity
• waste

Tags

NGSS.HS-PS1-8

What makes something radioactive?

• elements with an atomic number above 81
• an unstable nucleus
• contaminated sewage
• It decays over time

Tags

NGSS.HS-PS1-8

If the half life of a radioactive element is 100yrs, how long would it take for the radioactivity to reduce by one half?

• 200yrs
• 100yrs
• 50yrs
• 300yrs

Tags

NGSS.HS-PS1-8

What is nuclear fission?

• Big nucleus splits to small nuclei
• Small nuclei fuse into a bigger nucleus
• Stars
• Making compounds

Tags

NGSS.HS-PS1-8

How do nuclear power-plants work?

• Fusion
• Half-life
• Fission
• Fusion or fission

Tags

NGSS.HS-PS1-8

_______________ is the process by which unstable atoms emit radiation until they become stable.

• Radiation
• Chemical Reaction
• Radioactive Decay
• Isotopes

Tags

NGSS.HS-PS1-8