Science Check: Light Waves and Their Behavior 4 of 104 of 10 Items Question POSSIBLE POINTS: 1 Why is a light wave not considered a matter wave? A light wave is visible to humans. A light wave is visible to humans. A light wave moves faster than most waves. A light wave moves faster than most waves. A light wave does not have a wave length. A light wave does not have a wave length. A light wave travels through the vacuum of space. A light wave travels through the vacuum of space.

A light wave travels through the vacuum of space

Explanation:

A light wave cannot be a matter wave because a matter wave is made up of

atoms while light wave is a form of radiation (electromagnetic). A matter wave requires a medium to travel while a light wave do not require medium to travel. Since light wave is a form of radiation, light can travel in vacuum.

Hence, the correct answer is A light wave travels through the vacuum of space

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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