Electric Charge and Its Properties
Physics ⇒ Electricity and Magnetism
Electric Charge and Its Properties starts at 7 and continues till grade 12.
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See sample questions for grade 7
Describe what happens when a charged object is brought near a neutral object.
Describe what happens when two objects with the same type of charge are brought close to each other.
Explain why metals are good conductors of electricity.
Explain why rubbing a plastic rod with wool makes the rod negatively charged.
If a body has a charge of -4.8 × 10-19 C, how many extra electrons does it have?
If an object has a charge of 3.2 × 10-19 C, how many electrons does it have in excess or deficit?
True or False: The total charge before and after rubbing a balloon on your hair remains the same.
What is the net charge on an atom that has 8 protons and 8 electrons?
Which of the following is a conductor of electricity?
(1) Rubber
(2) Glass
(3) Copper
(4) Plastic
Which of the following is a correct statement about electric charge?
(1) It can be created from nothing
(2) It is always conserved
(3) It is not quantized
(4) It can be destroyed
Which of the following is an insulator?
(1) Silver
(2) Wood
(3) Iron
(4) Aluminum
Which of the following is NOT a method of charging an object?
(1) Friction
(2) Conduction
(3) Radiation
(4) Induction
Fill in the blank: The charge on a neutron is ________.
Fill in the blank: The process of charging an object without direct contact is called ________.
Fill in the blank: The process of transferring charge by direct contact is called ________.
Fill in the blank: The property of charge that states it cannot be divided into smaller parts than the charge of an electron is called ________.
True or False: A neutral object has equal numbers of protons and electrons.
True or False: Electric charge can exist without mass.
True or False: Electric charge is a scalar quantity.
True or False: Protons have a positive electric charge.
