VERY SHORT Q & A:
Q1: Electric cell is the source of __________.
Q2: What are the two terminals of electric cell?
Ans: Negative terminal and positive terminal.
Q3: An electric cell produce electricity from chemical stored in it. (TRUE/FALSE)
Q4: The metal cap is _________ terminal of electric cell and metal disc is _________terminal.
Ans: Positive, negative
Q5: The filament of bulb is made up of _________.
Q6: The switch is said to be ‘ON’ when it allows current to pass through it. (TRUE/FALSE)
Q7: In an electric circuit the direction of current is taken to be from ________ to __________ terminal of electric cell.
Ans: Positive to negative
Q8: The thin coiled wire that gives off light is called ____________ of the bulb.
Q9: To break the flow of current in a circuit, ____________is used.
Q10: There are ________terminals in an electric cell.
Q11: What is a switch?
Ans: The simple device that either breaks the circuit or completes it is called switch.
Q12: Name any two electrical gadgets that have switches built into them.
Ans: Torch and oven
Q13: Give any two examples of conductors of electricity.
Ans: Copper and aluminium
Q14: Is air a conductor or insulator?
Ans: Air is insulator
Q15: Which of the following is good conductor of electricity: Rubber, wood, graphite
Q16: What are conductors?
Ans: Materials that allow electric current to pass through them are called conductors.
Q17: Electric wires are made up of __________ but they are covered with ___________.
Ans: Conductor, insulator.
Q18: Which part of electric cell or bulb can be connected to form a circuit?
Ans: The two terminals-negative and positive.
Q19: What are insulators?
Ans: Materials that do not allow electric current to pass through them are called insulators.
Q20: Which of the following is not good conductor of electricity: Copper, aluminium, mercury, rubber
Q21: Give two examples of insulators.
Ans: Rubber and plastic
Q22: Electricians must wear __________gloves while repairing electric switch.
Q23: The materials which do not allow electric current to pass through them are called __________.
Q24: In an electric bell, ___________energy is transformed into __________energy.
Ans: Electrical, magnetic
Q25: Cotton and thermo Col are good conductors of electricity.(TRUE/FALSE)
Q26: Electric ______is a path along which current flows.
Q27: Switch can break electricity flow.(TRUE/FALSE)
Q28: The material that allows electric current to pass through it is called ___________.
Q29: Our body is __________of electricity.
Q30: All metals are good conductors. Is the statement true? Give example.
Ans: Yes. For example- iron, copper etc.
Q31: Which materials can be used to cover electric wires, plug tops, switches etc?
Ans: Insulators such as plastic, rubber etc
Q32: Gold is a conductor. (TRUE/FALSE)
Q33: What are electric wires made up of?
Ans: Electric wires are made up of copper, aluminium.
Q34: Name any three components of electric circuit.
Ans: Electric cell, wire and electric bulb.