Physics
Grade-9
Easy

Question

Ruby rubs her socks along the woolen carpet as she walks across her house. She grabs onto a metal doorknob. What will most likely happen as she touches the door knob?

  1. The charge will disappear
  2. The charge will repel her
  3. She will get a light shock
  4. She will build up more charge

hintHint:

When any metals get in contact with electrons, the electrons jump to the metals that have more protons. Thus, Ruby feels the light shock.

The correct answer is: She will get a light shock


    When Ruby touches the doorknob as the electrons from her body travel to the protons of the metal doorknob, she feels the light shock.
    • When any metals get in contact with electrons, the electrons jump to the metals that have more protons.
    • The doorknob will be having more electrons.
    • When Ruby touches the doorknob, the electrons in her body travel to the metal doorknob.
    • Due to this movement, she felt a slight shock.

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