Sound Review Write your name, date, and Science on your paper. Number your paper 1-8. Write the letter answers only.

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Presentation transcript:

Sound Review

Write your name, date, and Science on your paper. Number your paper 1-8. Write the letter answers only.

What type of movement produces sound? a.An impulse b.An echo c.A decibel d.A vibration

How does sound travel through the air to your ear? a.Sound travels as a wave. b.Sound travels as a decibel. c.Sound travels in the gaps in the air. d.Sound travels through one molecule.

Why is there no sound in outer space? a.There are too many other noises. b.There is only echolocation in space. c.The speed of sound is too slow for space. d.There is no medium in which it can travel.

What is the part of the longitudinal wave where the molecules are stretched apart? a.A crest b.A trough c.A rarefaction d.A compression

What is the distance between two crests on a wave? a.The amplitude b.The pitch c.The frequency d.The wavelength

What property of a wave determines its pitch? a.The medium b.The amplitude c.The frequency d.The rarefaction

What process do bats use to navigate? a.rarefaction b.polarization c.echolocation d.compression

Why does sound travel faster in water than in air? a.Water is a denser medium than air. b.Air is a denser medium than water. c.Water has a larger wavelength than air. d.Air has a larger wavelength than water.

Sound Activity

We will go to the computer lab to learn more about sound. Sit where you sat last time. Put on your headphones. Click on the BBC icon.

Read pages 2, 4, and 5.

Click Play icon—full screen.

Choose Full screen.

Follow the directions. _processes/changing_sounds/play.shtml

Click the blue arrows to change your task.

Click Sort sounds.

Listen to each recorder and drag them to the right place.

Close the page when you are done.

Take the quiz.

Read carefully. Click the circle to choose the correct answer.

Check score when you’re done.

Write your score on your quiz paper and hand in back in the classroom.