Carry out these steps, and record the findings in the table. Use the gram scale to measure the mass of 2, 4, and 6 paper clips. Fill the graduated cylinder with 8.0 mL of water. Add 2 paper clips to the water in the graduated cylinder. Determine how much the volume of water increases. This increase in volume is the volume of the paper clips. Record the value. Repeat this process to find and record the volume of 4 paper clips and then 6 paper clips. Density is mass in grams divided by volume in cubic centimeters (cm3). One mL is equal to 1 cm3. Calculate and record the density of the steel used in the paper clips.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia