TED-Ed: Radioactivity: Expect the unexpected - Steve Weatherell

TED-Ed: Radioactivity: Expect the unexpected - Steve Weatherell

Assessment

Interactive Video

Chemistry, Science, Physics

KG - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video explains radioactivity, where unstable nuclei change spontaneously, emitting particles like beta and alpha. Beta particles result from neutron to proton transformation, while alpha particles are helium nuclei. Radioactivity has applications in smoke detectors and medicine, but poses health risks. Gamma radiation, an electromagnetic wave, is used in food preservation and cancer treatment. Ionization from radiation can damage DNA, highlighting the dual nature of radioactivity as both useful and dangerous.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the process called when the nucleus of a chemical element changes from one element to another?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How does a neutron in the nucleus change into a proton, and what particle is emitted during this process?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the difference between alpha particles and beta particles in terms of their mass and speed.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the potential health consequences of inhaling or ingesting a radioactive nucleus?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

In what ways is radioactivity both useful and dangerous in our daily lives?

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