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Which of the following is NOT an example of static electricity?
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Lightning
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Balloon sticking to a wall
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Electric shock
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Electromagnet
What happens when two objects with different charges are brought close together?
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They repel each other.
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They attract each other.
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Nothing happens
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It depends on the charges.
What is the SI unit of electric charge?
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Coulomb
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Ampere
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Ohm
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Volt
Which of the following materials is an insulator?
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Copper
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Aluminum
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Silver
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Rubber
What causes an object to become positively charged?
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Gain of electrons
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Loss of electrons
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Gain of protons
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Loss of protons
What is the process of transferring charge from one object to another by direct contact called?
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Conduction
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Induction
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Repulsion
Which of the following statements about electric fields is correct?
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Electric fields are only produced by charged objects
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Electric fields can exist even in the absence of charges
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Electric fields are limited to metallic objects
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Electric fields are visible to the naked eye
What happens to the electric field strength between two charged objects as the distance between them increases?
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It increases.
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It remains constant.
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It becomes zero.
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It decreases.
What is the process of charging an object without direct contact called?
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Induction
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Conduction
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Repulsion
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Electrification
Which of the following factors affect the strength of the electric force between two charged objects?
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Mass and speed
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Charge and distance
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Density and volume
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Temperature and pressure
