Test
Physics
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Preguntas del test (20)
1period is the time taken to complete one full cycle
- AVerdadero
- BFalso
2what is frequency?
- Athe time taken to complete one full cycle
- Bthe number of waves passing a point each second
3in a transverse wave particles of the median vibrate at right angles to the direction the wave is travelling in
- AVerdadero
- BFalso
4type of transverse wave
- Asound
- Bwater
- Cradio
5in which type of wave do particles of the median vibrate parallel to the direction the wave is travelling in
- Atransverse
- Blongitudinal
6sound is a longitudinal wave
- AVerdadero
- BFalso
7speed of waves in the electromagnetic spectrum
- A340 m/s
- B3x10*8 m/s
8the speed of sound waves is 3x10*8
- AVerdadero
- BFalso
9refraction is when a wave changes speed as it moves from one medium to another
- AVerdadero
- BFalso
10which of these is a property of a wave in which when waves pass by a barrier or by an edge or through a gap they spread or bend behind the barrier
- Adiffraction
- Brefraction
11convex lenses correct short sight
- AVerdadero
- BFalso
12which type of the following is corrected by a concave lens
- Along sight
- Bshort sight
13nuclear fission is when a heavy nucleus splits into 2 lighter nuclei
- AVerdadero
- BFalso
14what happens in a nuclear fusion
- Aa heavy nucleus splits into two lighter nuclei
- B2 light nuclei join together
15how is background radiation calculated
- Atotal + background radiation
- Btotal - background radiation
16infrared radiation is used in smoke detectors
- AVerdadero
- BFalso
17alpha is easily absorbed
- AVerdadero
- BFalso
18beta is less harmful than alpha if ingested, but more harmful externally
- AVerdadero
- BFalso
19gamma is easy to stop immediately
- AVerdadero
- BFalso
20what is ionisation
- Awhen a proton is removed from an atom
- Bwhen a neutron is removed from an atom
- Cwhen an electron is removed from an atom
Información
- Descripción
- Test sobre Physics, creado por paula-x el 09/03/2014.
- Autor
- paula-x
- Idioma
- English
- Visitas
- 14
- Valoración
- Aún sin valoraciones Valora este test