Current Electricity Word Scramble
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Question | Answer |
What causes an electric current | A flow of electrons |
What is a conductor | A material that allows a current to flow |
What is an insulator | A material that does not allow a current to flow |
Give an example of a conductor | Metal |
Give an example of an insulator | Wood or plastic |
Where are electrons produced | At the negative terminal |
In what direction do electrons flow in a circuit | From the positive to the negative terminal |
What do you call the difference in pressure between the positive and the negative terminals | Potential difference |
What is the other name for potential difference | Voltage |
What is voltage measured in | Volts |
What is the symbol for volts | V |
How would you measure voltage | Voltmeter |
What do you call the ability a substance has to resist the flow of electrons | Resistance |
What is resistance measured in | Ohms |
Give an example of a resistor in a circuit | light bulb filament |
What is the term used to describe the flow of electricity | Current |
What is current measured in | Amps (I) |
What would you use to measure the flow electrical charge | Ammeter |
What Law states that at constant temperature, the voltage (V) is always proportional to the current in a circuit | Ohms Law |
What type of resistor can be used to control the voltage in a current | Variable resistor |
How would you describe the relationship between voltage and current | Proportional - if voltage is increased then current will also increase |
What would you call a circuit where bulbs are connected one after the other | Series circuit |
In a series circuit, what happens the bulbs as the current passes through | They get dimmer |
What would you call a circuit where bulbs are connected side by side | Parallel circuit |
If a bulb is disconnected in a circuit but the others continue to light , what type of circuit would this be | Parallel circuit |
Name three effects of an electric current | Heating, Magnetic and Chemical |
Give an example of the heating effect of a current | Element in a kettle |
Give an example of the magnetic effect of a current | Electromagnet |
Give an example of the chemical effect of a current | Electrolysis -splitting of water |
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gcu science
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