/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 60 Be sure to show all calculations... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 4: Problem 60

Be sure to show all calculations clearly and state your final answers in complete sentences. Visit a NASA website with pictures from the International Space Station. Choose two photos that illustrate some facet of Newton's laws of motion or gravity. Explain how what is going on is related to Newton's laws.

Short Answer

Expert verified
The astronauts floating illustrate Newton's First Law, and the station's propulsion shows Newton's Third Law.

Step by step solution

01

Choose a Photo Illustrating Newton's First Law

I chose a photo showing an astronaut inside the International Space Station while floating. This image illustrates Newton's First Law of Motion, also known as the law of inertia. The law states that an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. In the microgravity environment of space, the astronaut floats because there are negligible forces acting to stop their motion or pull them in a different direction, thus illustrating the astronaut's tendency to maintain their state of motion.
02

Choose a Photo Illustrating Newton's Third Law

The second photo chosen presents the Space Station with jets releasing gases for stabilization. This illustrates Newton's Third Law of Motion, "For every action, there is an equal and opposite reaction." When the spacecraft expels gas in one direction, it is propelled in the opposite direction, balancing the forces and allowing for maneuverability in space. This application is critical for adjusting the Space Station's position and maintaining orbit.
03

Connect Photos to Newton's Laws

The first photo directly connects with Newton's First Law of Motion, where the astronaut's motion is unperturbed by external forces, simulating inertia in a zero-gravity environment. The second photo is a practical example of Newton's Third Law, demonstrating how propulsion and movement are achieved through action-reaction pairs in a vacuum where traditional means of movement aren't possible.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Microgravity
Microgravity is often confused with the absence of gravity, but it's actually a condition where objects appear to be weightless.
When astronauts are inside the International Space Station (ISS), they experience microgravity. This is because the ISS is in a continuous state of freefall towards Earth, matching the Earth's curve.
This condition allows astronauts to float as they move, which is why activities like somersaults in mid-air are possible. Here鈥檚 how microgravity affects objects:
  • Objects can move effortlessly without falling directly downwards.
  • Forces such as airflow, or minor touches, can alter an object's trajectory with ease.
  • Everyday actions are performed differently since the force of gravity is not a dominant factor.
Understanding microgravity is crucial because it mimics the conditions of deep space exploration, allowing scientists to conduct experiments that would be impossible on Earth.
International Space Station
The International Space Station (ISS) serves as a large orbiting laboratory where numerous scientific investigations take place.
As it orbits Earth, the ISS provides a unique environment for studying phenomena that are affected by gravity.
Important aspects of the ISS include:
  • It travels at approximately 28,000 kilometers per hour, orbiting the Earth roughly every 90 minutes.
  • The ISS allows astronauts to live in microgravity, making it an excellent platform for research.
  • It is a collaboration of multiple countries, showcasing cooperation in advancing space exploration.
Activities conducted aboard the ISS, such as experiments with fluid physics and combustion, enhance our understanding of science and can lead to improvements in health, technology, and our understanding of the universe.
Law of Inertia
Newton's First Law of Motion, or the law of inertia, explains the behavior of objects in motion or at rest.
According to this law, an object will not change its state of motion unless an external force is applied. This principle is well illustrated in the microgravity environment of space.
For example:
  • Inside the ISS, if an astronaut gives a gentle push to an object, it will continue to float in that direction endlessly, unless stopped by another force like a wall or a hand.
  • The lack of significant resistance like air friction or gravity pulling objects back down enables this smooth, uninterrupted motion.
  • This law of inertia is crucial in designing spacecraft, where engines can be turned off for long periods since no force is needed to maintain a constant speed in the vacuum of space.
By observing microgravity's effects on the ISS, we gain real-world applications of the law of inertia.
Action-Reaction Principle
The action-reaction principle is Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction.
This law is fundamental in the dynamics of space travel. Inside the ISS, actions lead to visible and often unexpected reactions owing to the lack of friction and strong gravity.
Here鈥檚 how it works:
  • The ISS itself uses this principle for adjustments in its orbit. Small gas thrusters eject gas molecules in one direction, causing the station to move in the opposite direction.
  • Astronauts experience this firsthand; pushing against the wall of the ISS propels them back with a similar force.
  • Combining Newton's laws enables the careful control needed to operate and maneuver spacecraft successfully in space.
Understanding Newton's Third Law is vital for any space mission, as it directly applies to maneuvering and navigation in the frictionless environment of space.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Describe the laws of conservation of momentum, of angular momentum, and of energy. Give an example of how each is important in astronomy.

What is tidal friction? What effects does it have on Earth? How does it explain the Moon's synchronous rotation?

Decide whether the statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain clearly; not all of these have definitive answers, so your explanation is more important than your chosen answer. When I drive my car at 30 miles per hour, it has more kinetic energy than it does at 10 miles per hour.

Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences. The gravitational potential energy of a contracting interstellar cloud (a) stays the same at all times. (b) gradually transforms into other forms of energy. (c) gradually grows larger.

Define speed, velocity, and acceleration. What are the units of acceleration? What is the acceleration of gravity?
See all solutions

Recommended explanations on Physics Textbooks

Solid State Physics

Read Explanation

Mechanics and Materials

Read Explanation

Electrostatics

Read Explanation

Thermodynamics

Read Explanation

Medical Physics

Read Explanation

Measurements

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.