1. How does the force of the Earth’s gravity 250 miles above the surface of the Earth compare to the force of gravity at the surface of the Earth? Is this surprising? The force of the Earth’s gravity 250 miles above has less pressure and less gravity because gravity pulls everything to the center of the Earth, so the farther the distance; the less gravity. The force of the Earth’s gravity 250 miles above the surface has about 90 percent of what the force of gravity is on Earth’s surface. For example, if a person weighed 100 pounds on Earth’s surface, and they climbed on a ladder all the way to the space station, they would weigh 90 pounds on the top of ladder. It is surprising because some people think there is no or very little gravity
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If a tennis ball on a tower 225 miles high were dropped, what would its rate of acceleration towards the surface of the Earth be at the time it was dropped? Explain. The gravity is 90 percent at the altitude, so you would multiply the rate of acceleration (9.8 m/s/s) by the percent of the altitude. The acceleration towards the surface of the Earth would be 8.8 m/s/s. The rate of acceleration at which objects fall solely would at 9.8 m/s/s toward the Earth. The reason is because objects fall toward Earth solely at a rate of 9.8 m/s/s.
3. How is what is experienced in the space station similar to “zero gravity?” Why is the term “zero gravity” misleading? In a space station, the astronauts are in free fall which is similar to “zero gravity” in outer space. This is because there is an effect on objects if there is no gravity, so the objects that fall, will fall differently. For example, if a feather and a bowling ball were in a vacuum, both objects will fall at the same rate due to no air. The astronauts experience sensations of weightlessness while in orbit in the space station. The term “zero gravity” is misleading because people will think there is no gravity in space, but there can be a small amount of gravity found on different places in outer space,
If a tennis ball on a tower 225 miles high were dropped, what would its rate of acceleration towards the surface of the Earth be at the time it was dropped? Explain. The gravity is 90 percent at the altitude, so you would multiply the rate of acceleration (9.8 m/s/s) by the percent of the altitude. The acceleration towards the surface of the Earth would be 8.8 m/s/s. The rate of acceleration at which objects fall solely would at 9.8 m/s/s toward the Earth. The reason is because objects fall toward Earth solely at a rate of 9.8 m/s/s.
3. How is what is experienced in the space station similar to “zero gravity?” Why is the term “zero gravity” misleading? In a space station, the astronauts are in free fall which is similar to “zero gravity” in outer space. This is because there is an effect on objects if there is no gravity, so the objects that fall, will fall differently. For example, if a feather and a bowling ball were in a vacuum, both objects will fall at the same rate due to no air. The astronauts experience sensations of weightlessness while in orbit in the space station. The term “zero gravity” is misleading because people will think there is no gravity in space, but there can be a small amount of gravity found on different places in outer space,