what does frequency mean?

the number of waves per second measured in hertz(hz)

the height of the wave form the middle to the top

what does wave speed mean?

how quickly a waves moves through a medium (amedium is a material)

a vibration that transfers energy but not matter

collets light and focuses iamge

Quiz

obeng_mary 6 questions

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1what does geocentric mean
1. Aeverthing orbits the earth
2. Ball palnets orbit the sun
2what does heliocentric mean?
1. Aeverything orbits the earth
2. Ball the planets orbit the sun
3what does frequency mean?
1. Athe number of waves per second measured in hertz(hz)
2. Bthe height of the wave form the middle to the top
4what does wave speed mean?
1. Ahow quickly a waves moves through a medium (amedium is a material)
2. Ba vibration that transfers energy but not matter
5what is a wave ?
1. Aa vibration that transfers energy but not matter
2. Bmagnifies image
6explain what objeactive lens means?
1. A collets light and focuses iamge
2. Bor light