# When a flag waves in the wind the flag ripples back and forth as the energy?

May 6, 2020 Off By idswater

## When a flag waves in the wind the flag ripples back and forth as the energy?

3.3

Matter ____ transferred as a wave moves is not
When a flag waves in the wind, the flag ripples back and forth as the energy ____ along the flag. travels
A ____ wave travels only though matter. mechanical
An ____ wave can travel through empty space or through matter. electromagnetic

## What is it called when a wave bounces back and comes back to the source?

It is called an echo or a reflection when a wave bounces back and comes back to the source.

## What type of wave is a flag in the wind?

electromagnetic waves
Both the waves in the flag and the ocean waves are waves that you can see. There are other kinds of waves. We cannot see these waves, but we experience them every day. These waves are called electromagnetic waves.

## What type of wave is a flag?

Waves that travel through matter—such as the fabric of a flag—are called mechanical waves. The matter they travel through is called the medium. When the energy of a wave passes through the medium, particles of the medium move. The more energy the wave has, the farther the particles of the medium move.

## How does water move when a wave of energy passes through it?

Waves are actually energy passing through the water, causing it to move in a circular motion. As a wave passes through water, not only does the surface water follow an orbital motion, but a column of water below it (down to half of the wave’s wavelength) completes the same movement.

## What are two common waves in nature?

In understanding the earth, it’s useful to concentrate on two general classes of waves, mechanical and electromagnetic waves. Common types of mechanical waves include sound or acoustic waves, ocean waves, and earthquake or seismic waves.

## What are three properties in waves?

However, all waves have common properties—amplitude, wavelength, frequency, and speed. Amplitude describes how far the medium in a wave moves. Wavelength describes a wave’s length, and frequency describes how often it occurs. Speed describes how quickly a wave moves.

## What is it called when a wave bounces back?

reflection : When a wave bounces off an object and changes direction. Refraction is the bending of a wave as it passes from one medium to another.

## What is the highest wave ever recorded?

An earthquake followed by a landslide in 1958 in Alaska’s Lituya Bay generated a wave 100 feet high, the tallest tsunami ever documented. When the wave ran ashore, it snapped trees 1,700 feet upslope. Five deaths were recorded, but property damage was minimal because there were few cities or towns nearby.

## Which 3 types of waves can be harmful to life?

However, the Earth’s atmosphere protects us from exposure to a range of higher energy waves that can be harmful to life. Gamma rays, x-rays, and some ultraviolet waves are “ionizing,” meaning these waves have such a high energy that they can knock electrons out of atoms.

## What are the two main types of waves?

Types and features of waves Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.

## Why does a flag ripple when suspended in the air?

You also have gravity pulling down on the flag, so parts of the flag are trying to “flop” over. The turbulence is related to wind speed, it gets worse as speeds increase. If a flag were suspended from a horiztonal line, and a very slow wind was blowing downwards, there would be little flapping.

## How is the windspeed of a flagpole determined?

More importantly, however, a flagpole’s windspeed rating is calculated according to the size of flag that the pole is engineered to fly. This is because wind can also wreak tremendous havoc on flagpoles. Flag size and wind force are used to calculate the maximum wind-load on a flagpole.

## How does a flag move in the wind?

to move freely and gently back and forth or up and down, as by the action of air currents, sea swells, etc.: flags waving in the wind.

## Why does a flag wave when it is on a pole?

You are correct that the force that the wind acts on the flag is not directly upward. However, remember that the flag is fixed to the pole, so the horizontal force causes a torque that raises the flag. I believe the real answer lies in the propagation of a Kármán vortex street behind a cylindrical surface in a fluid flow.

## How is a flag flapping in the wind related to physics?

Making an analogy to the physics of sails, two scientists in France propose a simple model to explain how wind-driven waves in a flapping flag give rise to lift forces. Since gravity tends to collapse a flag along its diagonal, while wind tends to stretch it out, the wavelike motion of folds in a flag is at an oblique angle to its length.

You are correct that the force that the wind acts on the flag is not directly upward. However, remember that the flag is fixed to the pole, so the horizontal force causes a torque that raises the flag. I believe the real answer lies in the propagation of a Kármán vortex street behind a cylindrical surface in a fluid flow.

More importantly, however, a flagpole’s windspeed rating is calculated according to the size of flag that the pole is engineered to fly. This is because wind can also wreak tremendous havoc on flagpoles. Flag size and wind force are used to calculate the maximum wind-load on a flagpole.

You also have gravity pulling down on the flag, so parts of the flag are trying to “flop” over. The turbulence is related to wind speed, it gets worse as speeds increase. If a flag were suspended from a horiztonal line, and a very slow wind was blowing downwards, there would be little flapping.