It was discovered that residents were losing up to 15% of their muscle mass during a typical six-month stay on the space station. Scientists and engineers designed the Advanced Resistive Exercise Device (ARED) to combat this muscle loss.

The first thing the scientists and engineers had to do to create the solution was to determine the problem.

Which of these statements describes the problem associated with this situation?

Which statement is true about the future of space travel?

As a result of the Apollo Program, humans traveled to the moon. What was another major advantage of this space mission?

The chemical mixture that combines with the oxidizer for combustion in an engine is called a(n):

Collaborating with others demonstrates the ability to work in a way that is effective and _______.

Astronauts on the International Space Station sprouted lettuce seeds. They soon realized that the plants were going to grow too large for their containers. The crew is instructed to save the harvest.

“Let’s replant all of the lettuce. We could use the empty food containers we have left over from our meals for the plants,” suggests one of the astronauts.

“That could work, but do you think the unexpected size of all these big plants will impact our air and water use?” says another.

“Let’s just restart them from seed. We can still use our empty food containers as planters, but we’ll only plant half as many seeds. We have 60 days on our mission, which is exactly how long it takes for lettuce to mature for harvest,” says a third.

What is the best approach for them to collaboratively solve the problem?

Select the statement that correctly identifies an effect that microgravity has on the body.

Which two arrows show the equal and opposite forces that demonstrate Newton’s Third Law that causes liftoff? Select two letters.

Which diagram shows the correct amount of thrust needed to successfully launch the rocket into an orbit around Earth?

A group of students investigated how changing the orbital radius affects how fast an object can orbit. To complete their investigation, they created a model spacecraft using a balloon attached to a string

The parachutes in this diagram are slowing down the capsule using what force?

What is the maximum number of crew members that could be supported by this oxygen-recovery system on the spacecraft?

Increasing Vitamin C in astronauts’ diets may prove beneficial because it might help them to better process oxygen. In addition, scientists have discovered that eating fresh ingredients and new flavors provides positive feelings in astronauts.

They devise a plan to grow small amounts of plants that contain vitamin C with the water from the oxygen and water recovery prototype. Each plant requires similar amounts of space to grow if harvested while young, so space is not a consideration.

There are 2.28 liters of water available for growing plants in a space habitat. Which combination of plants would be possible to grow with the water that is available?

If you wanted to get the greatest possible amount of vitamin C for the astronauts, which would be the best to grow?

Astronauts lose bone mass while in space, which weakens bones.

Which astronaut had the least amount of bone mass loss?

The figure is a manned maneuvering unit (MMU) that NASA used. It allowed an astronaut to do untethered space walks. It used small nitrogen thrusters, which were operated by hand controls to move about in space while working on external parts of the space station.

The arrows in Figure 1 show the direction of two equal but opposite forces at work on the MMU’s thrusters. This enabled the astronaut to steer themselves. The astronaut is using the thrusters to move at an angle.

Which of Newton’s Laws do the two arrows represent?

The MMU is an interesting piece of equipment; however, NASA decided to retire it in 1984. Study the data chart about the MMU.

Use the data provided to determine the reason NASA found that the MMU was not ideal to use on the ISS.