Sound Review

Front

An object will produce a sound if it vibrates.

Back

vibrates

Front

If you blow into these two whistles, the shorter one will produce a sound that is

Back

higher

Front

A bell can make a sound because

Back

it can vibrate

Front

When a tuning fork is struck against a table, it will begin vibrating. We can tell it is vibrating because it

Back

makes a sound

Front

When a stretched rubber band is plucked it makes a sound. Stretching the rubber band more makes it vibrate faster. What is the result of vibrating faster?

Back

The rubber band makes a higher pitched sound.

Front

Which tool uses sound to communicate?

Back

telephone

Front

If you are playing cymbals and hit them harder, what happens?

Back

The amplitude (energy) increases so it is louder.

Front

Students need to construct a device that sends a signal using both light and sound. Which two items will be most useful for making a signaling device? Options: a cotton ball and a tissue, a note card and some yarn, a large bell and a candle, a paper towel and toothpick

Back

a large bell and a candle

Front

A traffic light tells people what to do by using different colors. In order to know when to stop or go, a person must use what sense?

Back

sight

Front

A television allows people to see and hear, which means that a television set must be able to

Back

make light and sound