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SP11
GCSE Separate Science Physics
| Question | Answer |
|---|---|
| Which particle in an atom has a negative charge? | Eletron |
| If an atom loses 2 electrons what will the charge of the atom be? | 2+ / 2 positive. |
| What types of materials can gain a static charge? | Insulators. |
| Why does your hair repel each other when they gain a static charge? | Because they gain the same charge and like charges repel each other. |
| What does “induction” mean?(1) | When an object becomes charged because it is brought close to an object that has a charge. |
| What are the possible charges of two objects if they attract each other when they are brought close together? | Positive – negative Negative – positive. |
| What is the charge of an atom? | No charge / neutral. |
| Why is it called “static” electricity? | Because the charges cannot move. |
| What type of objects cannot become statically charged because the charges flow away too quickly? | Conductors |
| What particle moves when objects become charged? | Electrons |
| A polythene rod is rubbed with a cloth. If the cloth becomes positively charged, what is the charge of the rod? | Negative. |
| What causes you to feel an electric shock? | he flow of electrons through your body. |
| What is the name when excess charge is removed from an object? | Discharged / Earthed. |
| What force causes there to be a build up of charge in clouds? | Friction |
| What two ways can buildings be made safe from lightening? | Be earthed (connected to the ground), or use a lightening conductor. |
| What is used on fuel pipes to aircrafts to connect it to the Earth? | Bonding line. |
| What does “Earthing” mean? | To be connected to the ground / provide a path for charge to flow to the ground. |
| What is a force field? | A region of space around an object where another object can experience a force. |
| What is the name for the area around a charged object? | Electric field. |
| Draw the field lines around the object. | 1 mark for lines spreading outwards. 1 mark for arrows pointing outwards. |
| What is the name given to a single charge? | Point charge |
| How do you know from a diagram where a field is the strongest? | Where the field lines are closest together. |
| What does “uniform” mean? | The same in all places. |
| How could you generate a uniform electric field? | Between two parallel plates. |
| What direction would a negative charge move if it was placed to the left of a negative charge? | To the left. |
| What word is used to describe a field that spreads outwards from a point? | Radial. |
Created by:
Davenant Foundation School
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