Question

Please help! i need help on this quiz.!!!!
5. Loudness is the human perception of sound wave ____. (1 point)frequency
intensity
pitch
speed

6. The part of the ear that amplifies sound vibrations is the____. (1 point)cochlea
middle ear
inner ear
outer ear

7. How much of the energy emitted by the Sun reaches Earth? (1 point)all
a small fraction
most
nearly half

Answer 1

5.intensity
6.outer ear

Answer 2

7.most

Answer 3

Most of the energy emitted (sent out) by the sun is visible light and a related form of radiation known as infrared rays, which we feel as heat. Visible light and infrared rays are two forms of electromagnetic radiation. The sun also emits particle radiation, made up mostly of protons and electrons.
Source(s):
http://www.nasa.gov/worldbook/sun_worldb …

Most of the energy emitted (sent out) by the sun is visible light and a related form of radiation known as infrared rays, which we feel as heat. Visible light and infrared rays are two forms of electromagnetic radiation. The sun also emits particle radiation, made up mostly of protons and electrons.

Answer 4

ok i misssed 2 of these.
6. MIddle ear
7. Small fraction

Answer 5

hope u got them now :)