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Flashcards: Electricity and Circuits 44 Flashcards 
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Card: 1 / 44 
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An electric cell generates an electric current through ___ reactions. |
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Card: 2 / 44
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Chemical  |
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Card: 3 / 44
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What is the function of the filament in a light bulb? |
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Card: 4 / 44
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The filament produces light when an electric current passes through it. |
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Card: 5 / 44
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The inside of a bulb is typically filled with ___ gases. |
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Card: 6 / 44
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Inert  |
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Card: 7 / 44
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True or False: The two terminals of a light bulb are designed to touch each other. |
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Card: 8 / 44
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False; the terminals are fixed in such a way that they do not touch each other. |
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Card: 9 / 44
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A torch bulb is used to provide light when ___ is applied. |
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Card: 10 / 44
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Electricity  |
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Card: 11 / 44
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Fill in the blanks: The base of the bulb and the ___ of the bulb are the two terminals. |
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Card: 12 / 44
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Metal tip  |
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Card: 13 / 44
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Which part of the bulb supports the filament? |
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Card: 14 / 44
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Two thicker wires |
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Card: 15 / 44
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What are the two terminals of an electric cell called? |
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Card: 16 / 44
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The two terminals of an electric cell are called the positive terminal and the negative terminal. |
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Card: 17 / 44
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Fill in the blank: The chemical inside an electric cell decreases in strength when it is ___ to a device. |
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Card: 18 / 44
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Connected |
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Card: 19 / 44
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True or False: A rechargeable cell cannot be used after its energy is spent. |
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Card: 20 / 44
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False: A rechargeable cell can be recharged and used again. |
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Card: 21 / 44
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What is the main function of a torch bulb when connected to an electric cell? |
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Card: 22 / 44
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The main function of a torch bulb when connected to an electric cell is to allow electricity to pass through the filament, causing it to glow.  |
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Card: 23 / 44
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In a torch bulb, what supports the filament? |
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Card: 24 / 44
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The filament is supported by two thick wires at its ends.  |
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Card: 25 / 44
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Fill in the blank: The dark powdery substance inside an electric cell is known as ___ . |
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Card: 26 / 44
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Chemical  |
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Card: 27 / 44
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What happens to an electric device when the chemical energy in the cell is completely used up? |
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Card: 28 / 44
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When the chemical energy in the cell is completely used up, the device connected to the cell stops functioning. |
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Card: 29 / 44
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What is the characteristic feature of an electric circuit? |
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Card: 30 / 44
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An electric circuit is a closed path through which electric current flows.  |
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Card: 31 / 44
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In an electric circuit, the direction of current flow is from the ___ terminal to the ___ terminal. |
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Card: 32 / 44
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Positive; negative  |
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Card: 33 / 44
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True or False: A bulb will glow if the positive terminal of the electric cell is connected to the positive terminal of the bulb. |
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Card: 34 / 44
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False; A bulb will only glow if the positive and negative terminals of the electric cell are connected to the respective terminals of the bulb.  |
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Card: 35 / 44
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What happens to a bulb when the filament is broken? |
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Card: 36 / 44
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The bulb does not glow and is said to be fused.  |
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Card: 37 / 44
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Fill in the blank: A compact fluorescent lamp (CFL) is known for being ___ and having a ___ life than ordinary bulbs. |
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Card: 38 / 44
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Energy-saving; longer |
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Card: 39 / 44
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What is required for the flow of electricity to be complete in an electric circuit? |
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Card: 40 / 44
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The positive and negative terminals of the power source must be connected to the respective terminals of the load (like a bulb).  |
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Card: 41 / 44
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What is the primary function of an electric switch? |
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Card: 42 / 44
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The primary function of an electric switch is to control the flow of electricity by either breaking the circuit (open switch) or completing it (closed switch). |
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Card: 43 / 44
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Fill in the blank: A switch that completes the circuit is called a ___ switch. |
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Card: 44 / 44
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Closed |
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 Completed! Keep practicing to master all of them. |
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