Wave Long Test Part 2

What causes the sky to be blue?

• reflection of light

• emission of light

• scattering of light

• absorption of light

Why can you see someone clearly through a clear glass window but not through a frosted glass?

• clear glass transmit light, but frosted scatters it

• clear glass transmits light but frosted absorbs it

• clear glass scatters light but frosted transmits light

• clear glass reflects light, frosted absorbs it

What process forms an image in a mirror?

• absorbing light

• refracting light

• reflecting light

• transmitting light

How does the color of an object affect the amount of energy it receives from sunlight?

• light colored objects absorb more light and become warmer

• dark colored objects absorb more light and become warmer

• light colored objects reflect light and become warmer

• dark colored objects reflect light and becomes warmer

What type of energy is transmitted from the sun to earth through space?

• potential energy

• kinetic energy

• electromagnetic

• electrical

Why does a leaf look green during the summer?

• the leaf reflects green light and absorbs all the colors of light

• the leaf absorbs green light and reflects all the colors of light

• the leaf produces green light

• the leaf uses green light to make food

What controls the amount of light that enters the eye?

• iris / pupil

• retina / cochlea

• iris / optic nerve

• retina / optic nerve

Why do light waves get refracted?

• light waves move through different mediums at different speeds

• light waves cannot pass through mediums

• light waves bounce off obstacles

• waves of any kind spread around obstacles

Why does a white light appear to be white?

• it reflects all the light in the spectrum

• it absorbs all the light in the spectrum

• it refracts white light only

• it has no color to reflect

What makes the waves in the EM spectrum different from each other?

• amplitudes

• wavelength and frequency

• colors

• speed