LIGHT ENERGY

JUNE 30TH / 2010

SCIENCE HOMEWORK FOR 8 A / B

COPY THE EXERCISES IN YOUR NOTEBOOK

Science Exercises 8^th A / B LCDA. DIANA MONTERO

LIGHT ENERGY

1.- Complete the sentences

LIGHT RADIANT PHYSICAL QUANTITY

A.- Luminous energy is the perceived energy of _______________ .

B.-This is sometimes also called the ______________ of light .

C.- Luminous energy is not the same as the ____________ energy.

D.- The corresponding objective__________________ quantity

E.-This is because the human eye can only see light in the_______________ spectrum

2.- Read and correct the mistakes

This is because the human ear can only see in the invisible spectrum and has different sensitivities to light of similar wavelengths within the spectrum. The ear is most sensitive to light at a wavelength of 555nm