698490
Beschreibung
Quiz von kate.siena, aktualisiert more than 1 year ago
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Erstellt von kate.siena
vor mehr als 10 Jahre
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Frage 1
Frage
In a transverse wave the oscillations are perpendicular to the direction of energy transfer
Antworten
- True
- False
Frage 2
Frage
Transverse waves cannot travel through a vacuum
Antworten
- True
- False
Frage 3
Frage
Frequency is measured in...
Antworten
-
Ohms
-
Hertz
-
m/s
Frage 4
Frage
When light enters a more dense medium it is refracted
Antworten
-
towards the normal
-
away from the normal
Frage 5
Frage
Waves are not refracted if they are travelling along the normal
Antworten
- True
- False
Frage 6
Frage
Which are true?
Antworten
-
Electromagnetic waves are transverse
-
Sound are transverse
-
Some waves transfer energy
-
In longitudinal waves, there are compressions and rarefactions
-
In longitudinal waves, there are compressions and expansions
Frage 7
Frage
Which are uses for microwaves?
Antworten
-
remote controls
-
sterilising surgical instruments
-
mobile phones
-
satellite television
-
bluetooth
-
security marking
Frage 8
Frage
Long exposure to electromagnetic waves can cause serious damage to cells in our bodies
Antworten
- True
- False
Frage 9
Frage
What is the range of human hearing?
Antworten
-
200 - 20000 Hz
-
20 - 2000 Hz
-
20 - 200000
-
20 - 20000Hz
-
200 - 2000 Hz
Frage 10
Frage
When waves are reflected, the angle of incidence = angle of refraction
Antworten
- True
- False
Frage 11
Frage
What is the normal?
Antworten
-
A line parallel to the reflecting surface at the point of incidence
-
A line perpendicular to the reflecting surface at the point of incidence
-
A line diagonal to the reflecting surface at the point of incidence
Frage 12
Frage
The Doppler Effect is a change in the observed wavelength and frequency
Antworten
- True
- False
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