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Evaluation

Cloze Activity

Read the paragraph below and fill in the missing words.

A wave is a transmission of a .When the rippler is attached with a spherical ball and lowered so that it just touches the surface of water, waves will be produced.When the rippler is attached with plane dipper and lowered to just touche the surface of water, waves will be produced.Waves tavel in lines perpendicular to the .Reflection of waves involves change in of wave when they bounce on barrier. involves change in direction of waves as they pass from one medium to another, accompanied by change in speed and .

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