KS3 Y7 Resistance

Gap-fill exercise.

Name:_________________________Class:___________________Date:__________________

  
Fill in all the gaps, then press "Check" to check your answers. If available use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button if available to get a clue. Note that you will lose points if you ask for hints or clues!
   blow out      bright      difficult      flow      flow around      flowing      flows through      glow      harder      high resistance      light up      little      low resistance      much      not light      Ohms      Resist      resistance      resistor      Resistors      smaller      thin filament      variable resistor   

When an electric current a bulb the bulb will . If too current flows, the bulb might up. If too current flows through the bulb might get too and eventually .

The bulb has a which when hot will . The bulb works by making it more for the current to the circuit. We call this . An electric component like bulbs is said to have . Some components may not make it too difficult for an electric current to flow. We say that they have a .

Inside electrical appliances like the radio there are places in the circuit where the current through may need to be made . are used to make the current smaller. are said to have and make it for electricity to .

There are times when we need to be able to change the at that point in the circuit whenever we want to. We use a special and we call this a .

ance is measured in .

 

 

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