Science

Question 1

List the two defining characteristics of all waves.

Answer 1

All waves have a back and forth motion and transfers energy.

Question 2

For each wave, list the medium through which it transmits.
Spring
Ocean
Sound

Answer 2

Spring: through metal or plastic (slinky)
Ocean: through water
Sound: through air particles

Question 2

How is a sound wave made when a bell rings? How does the sound wave travel from the bell to your ear?

Answer 2

When a bell rings a pulse of energy is created that sends vibrations through the air particles as compression waves to your ears.

Question 3

What happens when you increase the amplitude of a sound wave?

Answer 3

When a sound wave’s height increases the sound gets louder.

Question 4

How would you describe the relationship between wavelength and frequency?

Answer 4

When the frequency of waves increases, the wavelength between the waves gets shorter and the energy increases.

Question 5

Draw two waves that have the same wavelength but a different amplitude and then identify the wave that transfers more energy and explain why it has more energy

Answer 5

The bottom wave has more energy because it has a higher amplitude. Remember increased amplitude requires more FORCE. Applying more force requires more energy.

Question 6

Draw two waves that have the same amplitude but different wavelengths and identify the wave that is transferring more energy and explain why it has more energy

Answer 6

The bottom wave, WAVE B, has more energy because it has a higher frequency.
An increase in frequency results in a higher measurement of Hertz (waves per sec.)
Remember increasing frequency requires more SPEED. More speed requires more energy.