Current electricity

When a body has a deficit of n electrons it has

• - ne C

• Neutral

• + ne C

• Cannot predict

What part of a circuit is this object?

• power source
• load
• pathway
• switch

The part of a circuit that helps maintain a current flow by maintaining a p.d.

• Switch

• Battery

• Ammeter

• Resistance

What is an electric current?

• a build up of electrons

• the difference in charge between 2 points

• the flow of electrons over a circuit

• the opposition to flow of electrons

What is resistance

• the rate at which a charge is flowing

• the material's tendency to resist flow of electrons

• the difference of charge between 2 points

• it is futile

What is the unit we use to measure electric current?

• ampere (amp)

• ohm

• volt

• newton

What is the function of a switch in a circuit?

• to make the current hotter or colder

• turn on and off the flow of current

• the pathway that current flows

• to add more power to the circuit

A material in which electrons are not able to move easily is called _______.

• Circuit 
• Insulator 
• Resistance 
• Conductor

This is the symbol for a _____?

• switch
• light 
• battery
• wires

What is the resistance of a 120 volt, 3 amp device?

• 360
• 40
• 4
• 0.025