Sound Sound Cont. More Sound Still More Sound Light 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500

The ability of sound to cause vibrations.

What is sound energy?

The rapid back and forth movement that creates sound.

What are vibrations?

A surge of sound energy that travels through matter.

What is a sound wave?

THE NUMBER OF TIMES A SOUND SOURCE VIBRATES IN ONE SECOND.

What is frequency?

THE DISTANCE BETWEEN A POINT ON ONE WAVE TO THE SAME POINT ON THE NEXT WAVE.

What is wavelength?

THE PROCESS OF MAKING A SOUND LOUDER.

What is amplification?

THE HIGHNESS OR LOWNESS OF A SOUND.

What is pitch?

THE HEIGHT OF A WAVE.

What is amplitude?

A unit used to measure the loudness of a sound.

What is a decibel?

THE PITCH OF SOUND IS DETERMINED BY THIS.

What is frequency?

THE LOUDNESS OF SOUND IS DETERMINED BY THIS.

What is amplitude?

WHEN ANA SPEAKS, HER VOCAL CORDS VIBRATE WITH A HIGHER FREQUENCY THAN HER FRIEND’S VOCAL CORDS DO WHEN HE SPEAKS. THEREFORE, ANA’S VOICE WILL HAVE A HIGHER ________.

What is pitch?

SOUND TRAVELS BEST THROUGH THIS TYPE OF MATTER.

What are solids?

IF YOU HEAR A VERY LOUD KNOCK FOLLOWED BY THREE SOFT KNOCKS ON THE DOOR, THE FIRST KNOCK HAS A HIGHER _____________.

What is amplitude?

SOUND TRAVELS LEAST WELL THROUGH THIS.

What are gases?

BATS AND WHALES USE THIS TYPE OF ECHOLOCATION SYSTEM BASED ON SOUND WAVES TO HELP THEM NAVIGATE AND LOCATE FOOD.

What is sonar?

YOU CAUSE VIBRATIONS ON STRING INSTRUMENTS BY DOING THIS.

What is plucking or stroking?

YOU CAUSE VIBRATIONS ON PERCUSSION INSTRUMENTS, LIKE DRUMS, BY DOING THIS.

What is striking or hitting?

YOU CAUSE VIBRATIONS IN BRASS INSTRUMENTS (TRUMPET) BY DOING THIS.

What is blowing or forcing air into the air column?

YOU DON’T HEAR A SOUND, BUT YOUR DOG LIFTS HIS HEAD AND TURNS AS IF HE HEARS SOMETHING. THIS IS PROBABLY BECAUSE HE HEARS AT A HIGHER _________________.

What is frequency?

A COMBINATION OF SEVERAL DIFFERENT WAVELENGTHS OF LIGHT TRAVELING TOGETHER.

What is white light?

THE BAND OF LIGHT WAVES OF DIFFERENT COLORS IN THE ELECTROMAGNETIC SPECTRUM THAT VIBRATES AT FREQUENCIES OUR EYES CAN DETECT.

What is the visible spectrum?

THE ABILITY OF LIGHT TO CAUSE CHANGE, SUCH AS HEATING AN OBJECT.

What is light energy?

A MATERIAL THAT LETS MOST LIGHT WAVES PASS THROUGH IT.

What is transparent?

A MATERIAL THAT LETS SOME LIGHT WAVES PASS THROUGH IT.

What is translucent?