43 Directions: Select the correct image
Evan sees a lunar eclipse one night. When he briefly observes the Moon about half of it is bright and the other half is dark. He
wonders what phase the Moon is in during this event
Evan decides to use a model of the Sun-Earth-Moon system to determine the Moon's phase during a lunar eclipse. He uses a light
bulb to represent the Sun and its light, a softball to represent the Earth, and a golf ball to represent the Moon
Sun Earth Moon
Which diagram shows how Evan should arrange his model to investigate a lunar eclipse?
My

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.