Electricity and Circuits

Question 1

what do we need in order to build an electric circuit?

Answer 1

• a power source
• connecting wires
• something to use the energy

Question 2

what is a series circuit?

Answer 2

a circuit where the electricity has only one path that it can travel from one side of the battery to the other. all the components are connected in one loop

Question 3

what is resistance in a circuit?

Answer 3

this where components try to stop the flow of electric current. it is caused by the atoms in the wire getting in the way of the electrons that carry the electric current

Question 4

what is voltage?

Answer 4

voltage (or potential difference) is what makes the current flow around a circuit.

Question 5

what is a parallel circuit?

Answer 5

a parallel circuit has branches, so the resistance splits according to the number of branches

Question 6

differences: series circuit and parallel circuit

Answer 6

series:
- if one bulb breaks, the others go off
- adding more bulbs will male them dimmer, because the resistance will increase
- the voltage from the cell or power pack is divided between the components

parallel:

• the voltage is the same across all branches of the circuit
• the current splits up when it comes to a branch. the current in a branch adds up to the current in the main part of the circuit

Question 7

what NOT to do (electrical safety)

Answer 7

DONT

• use main appliances in the bathroom
• touch switches or sockets with wet hands
• use appliances with frayed cables
• overload sockets
• unplug appliances at the cable