Radiation

How can light (radiation) best be described?

• by using wavelengths only

• as having different frequencies

• something that can be measured

• as having properties of both a wave and a particle

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

___ is the distance between crest to crest or the time it takes for one complete cycle to pass.

• Frequency

• Wavelength

• Wien's Law

• Stefan's Law

Tags

NGSS.HS-PS4-1

Only radio waves, some infrared and visible light can penetrate Earth's atmosphere.

• True

• False

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

A perfect ___ is a theoretical object that absorbs 100% of the radiation that falls on it.

• black hole

• thermal radiation absorber

• molecular sphere

• blackbody

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5

What is non-ionizing radiation?

• anything that strips away electrons from atoms

• radio & x-rays

• visible light

• anything that can potentially harm living cells

Tags

NGSS.HS-PS4-3

Name the quantity whose unit is

Becquerel

• Energy

• Force

• Radioactivity

• Stress

Tags

NGSS.HS-PS1-8

What is the biggest form of radiation for non-smokers?

• Sodium

• Uranium

• Radon

• Cancer

Tags

NGSS.HS-PS1-8

What is the biggest form of radiation for non-smokers?

• Sodium

• Uranium

• Radon

• Cancer

A blackbody curve on a graph tells us how an object releases

• radio waves according to Planck's constant.

• light through a black hole's event horizon.

• radiation over different frequencies.

• heat over time.

Tags

NGSS.HS-PS4-3

Which statement best describes Stefan's law?

• as temp. decreases the energy emitted by an object increases

• there can never be a 100% perfect blackbody object

• as temp. increases the energy emitted by an object increases

• as temp. increases the energy emitted by an object decreases