Exploring Smoke Particles in a Glass Tube with a Microscope

[unknownn148]

Homework Statement

Using a microscope, smoke particles can be seen moving inside a glass tube. They appear as tiny spots of light that move in various directions. The air molecules inside the glass tube cannot be seen with the aid of the microscope.

a) State why a microscope is needed to see the smoke particles.

b) Explain why the smoke particles appear as spots of light.

c) State what makes the smoke particle moves in this way.

Homework Equations

No need for equations

The Attempt at a Solution

I do not know how to explain.

 

[catkin]

Do you know how to search the Internet?

 

[Moetasim]

a) A microscope is needed to see the smoke particles because they are too small to be seen with the naked eye. The microscope magnifies the particles, making them visible.

b) The smoke particles appear as spots of light because they scatter light as it passes through them. This scattering of light makes them visible as tiny dots.

c) The smoke particles move in various directions due to Brownian motion. This is the random movement of small particles suspended in a fluid, caused by collisions with the molecules of the fluid. In this case, the air molecules inside the glass tube are the fluid in which the smoke particles are suspended, causing them to move randomly.