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The satellite is orbiting with constant speed. **The satellite’s velocity is always changing**. The satellite is accelerating, because there is a net force acting on it. The force of gravity on the satellite is the

**a force that makes a body follow a curved path**. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.

.If a satellite moves above Earth’s atmosphere in a circular orbit with constant speed, then**its acceleration and velocity are always in the same direction**. he net force on it is zero. its acceleration is toward the Earth.This **centripetal force** is supplied by gravity – the force that universally acts at a distance between any two objects that have mass. Were it not for this force, the satellite in motion would continue in motion at the same speed and in the same direction. It would follow its inertial, straight-line path.

## What happens if a satellite moves above the Earth’s atmosphere in a circular orbit with constant speed?

If a satellite moves above Earth’s atmosphere in a circular orbit with constant speed, then**its acceleration and velocity are always in the same direction**. he net force on it is zero. its acceleration is toward the Earth.

## When a satellite takes a circular orbit around the Earth at a constant speed what force causes it to follow the circular path?

This **centripetal force** is supplied by gravity – the force that universally acts at a distance between any two objects that have mass. Were it not for this force, the satellite in motion would continue in motion at the same speed and in the same direction. It would follow its inertial, straight-line path.

### Speed of a Satellite in Circular Orbit, Orbital Velocity, Period, Centripetal Force, Physics Problem

### Images related to the topicSpeed of a Satellite in Circular Orbit, Orbital Velocity, Period, Centripetal Force, Physics Problem

## When a satellite travels at constant speed in a circular orbit around the Earth?

A satellite goes around the earth in a circular orbit with constant speed is **moving in a circular motion**. In a circular motion, there is a continuous change in the direction of motion. The velocity changes when the direction changes. The rate of change of velocity with respect to time is called acceleration.

## When a satellite moves around the Earth which of the following quantity remains constant?

According to Kepler’s rules of planetary motion, when a satellite/planet moves around the Earth/Sun in a certain orbit, **aerial velocity** remains constant.

## Why does a satellite moves in a circular orbit?

But **the gravitational force always try to pull the satellite towards itself**, so the satellite continuously changes its direction without changing its speed so as to revolve in a circular orbit and centripetal force can balance the gravitational force.

## What causes a satellite to move tangentially to a circular path?

Tangential speed changes throughout a satellite’s orbit. **Centripetal force** is perpendicular to the velocity of the satellite. Tangential speed increases with a satellite’s increasing distance from Earth. Centripetal force can sometimes slow down a satellite in orbit.

## When a satellite travels at constant speed the shape of its path is?

Since the satellite moves at 8 km/s, it “falls” at the same rate Earth “curves.” A satellite in orbit around Earth traces an oval-shaped path called **an ellipse**. An ellipse is the closed path taken by a point that moves in such a way that the sum of its distances from two fixed points is constant.

## See some more details on the topic What will happen to a satellite when it moves in a circular orbit around Earth and maintaining a constant speed? here:

### Circular Motion Principles for Satellites – The Physics Classroom

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Answer: C. No work is done if the direction of motion is perpendicular to the force. Explanation: We know that work is the dot product of force and displacement …

## When a satellite is orbiting Earth at constant speed there is no acceleration acting on it?

**Because the speed is constant, the acceleration is zero**. The acceleration and the net force vector are directed perpendicular to each other. If the net force acting upon the object is suddenly reduced to zero, then the object would suddenly depart from its circular path and travel tangent to the circle.

## What is true about a circular orbit?

Circular orbits are the simplest kinds of orbits in celestial mechanics, where **an orbiting body remains at constant radius as it travels around a gravitating mass**.

## What keeps a satellite in orbit around the Earth?

A satellite maintains its orbit by balancing two factors: **its velocity (the speed it takes to travel in a straight line) and the gravitational pull that Earth has on it**.

## Is the motion of the satellite around the Earth uniform or accelerated?

Motion of satellite around the earth is **accelerated**. It is the force of gravity of earth which keeps the satellite in circular path.

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## When a satellite revolves around the orbit of fixed radius then the quantity that will remain constant is?

When in circular motion, a satellite remains the same distance above the surface of the earth; that is, its radius of orbit is fixed. Furthermore, its **speed** remains constant.

## What will be the total energy of a satellite moving around the Earth in a circular orbit with speed v and having mass M?

TE=**−2mv2**.

## What are the characteristics of the motion of an earth satellite revolving around it in a fixed orbit?

The satellite motion in a fixed orbit is characterized by the following factors : (i) The earth’s gravitational pull at the height is equal to the centripetal force at that height. (ii) The angular velocity of satellite about earth’s centre remains constant. (iii) The linear speed of the satellite is also constant.

## What is an Earth satellite moving in its orbit?

Satellite will move **tangentially to its circular orbit with the same velocity i.e V**, this happens because of inertia of motion of the satellite. In absence of gravitational force there will be no centripetal force to keep the satellite in its circular orbit, so, it will fly off its track with its tangential velocity.

## Why does the velocity of the satellite change as it orbits the Earth?

When an object moves in a circle at a constant speed , its direction constantly changes. A change in direction causes a change in velocity . This is because **velocity is a vector quantity – it has an associated direction as well as a magnitude**.

## Why does the speed of a satellite not change?

Its speed does not change, but its velocity (speed and direction) does. Acceleration (as in F=ma ) implies a change of velocity but not necessarily of speed. **A circular orbit is the orbit which is exactly balanced so that the speed never changes**.

## Which one is constant for a satellite in orbit?

According to Kepler, **Angular momentum** is conserved for a satellite in orbit.

## Is the centripetal force that causes a satellite to move in a circle?

Centripetal forces cause centripetal accelerations. In the special case of the Earth’s circular motion around the Sun – or any satellite’s circular motion around any celestial body – the centripetal force causing the motion is the result of the **gravitational attraction between them**.

## What must be true of a force that causes an object to move in a circular motion?

What must be true of a force that causes an object to move in a circular motion? **It acts parallel to the velocity and is directed toward the center of the circle**.

## What happens to an object close to Earth’s surface if it is given a speed exceeding 11.2 km s?

What happens to an object close to Earth’s surface if it is given a speed exceeding 11.2 km/s? With such speed, called escape speed, **the object continues to move away from Earth indefinitely**.

### Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of

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## Why doesn’t the force of gravity change the speed of a satellite in circular orbit?

15. Why doesn’t the force of gravity change the speed of a satellite in circular orbit? In circular orbit the force of gravity is everywhere perpendicular to the satellite’s path (like the radius of a circle is perpendicular to the circumference). **There’s simply no component of force along the path to change speed**.

## How can a projectile fall around the Earth?

In a circular orbit around a spherical planet, the force and the fall are always toward the center. The projectile falls 5 m for every 8 km and so does Earth. A projectile can ‘fall around Earth’ **if the distance it falls matches the curvature of Earth**.

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