Worksheet: Interactions of Electromagnetic Waves with Matter
In this worksheet, we will practice describing the effects of different types of electromagnetic waves on matter, including their effects on the human body.
One or more of the following statements correctly describe the properties of electromagnetic radiation that are required for effective transmission through solid plastic cable cores that have a plastic coating of a higher density. Which statements are correct?
- The radiation must be weakly absorbed by plastic.
- The radiation must be strongly absorbed by plastic.
- The critical angle for the radiation at the boundary between the plastic of the cores must be large.
- The critical angle for the radiation at the boundary between the plastic of the cores must be small.
- Aa and b
- Bb and c
- Ca and c
- Dc and d
- Ea and d
Which of the following types of material interacts most strongly with X-ray radiation?
Which of the following types of material interacts most strongly with radio waves?
The more strongly electromagnetic radiation interacts with living tissues, the more damage it can do to those tissues. Further inside the body of organisms are more vital organs and tissues, damage to which is more harmful to organisms. The strength of interaction with human body tissues and the depth of penetration into the human body of different types of electromagnetic radiation is shown in the diagram.
What is the most dangerous type of electromagnetic radiation to humans?
Which is more dangerous to humans, microwave radiation or infrared radiation?
Are radio waves more dangerous or less dangerous to humans than infrared waves?
- AMore dangerous
- BLess dangerous
One or more of the following types of electromagnetic radiation contain no wavelengths that are ionizing but are still able to damage living tissues. Which of these types can damage living tissue in ways that do not require ionization to occur?
- Aa and c
- Bc and d
- Cb and c
- Da and d
- Ea and b
One or more of the following types of electromagnetic radiation only have wavelengths that are ionizing. Which of these types must be ionizing?
- Gamma rays
- Ac and b
- Ba and d
- Cd and b
- Dc and a
- Ec and d
The diagram shows how strongly various wavelengths of electromagnetic radiation are transmitted through Earth’s atmosphere.
What type of electromagnetic radiation can be both the most strongly absorbed by the atmosphere and the least strongly absorbed?
- BRadio waves
Is electromagnetic radiation of 1 m wavelength transmitted more strongly or less strongly through the atmosphere than red light?
- AEqually strongly
- BLess strongly
- CMore strongly
Is visible light more strongly or less strongly absorbed by the atmosphere than X-rays?
- AEqually strongly
- BMore strongly
- CLess strongly