What is current?

Current is:

• Electric voltage measurement
• the flow of electrons in a circuit

• Resistance of a circuit
• Power consumption rate

To use electricity we need the electrons to

• stay still in a vacuum
• flow only in insulators
• combine to form new elements
• to flow in the same direction around a circuit.

To make electrons to move around a circuit, we need to apply a​ ​ ​ (a)  

• voltage
• magnetism
• friction
• gravity

Voltage is the pushing​ ​ (a)  

• the pushing force
• the pulling force
• the resistance
• the magnetic field

The more voltage we have, the more​ ​ (a)  

• electrons can flow.
• fuses will blow
• resistance increases
• current decreases

More voltage =​ ​ (a)  

• the more electrons can flow.
• less resistance in the circuit
• decreased current flow
• more heat generation in the wires

More current =​ (a)  

• the faster the electrons are moving
• the slower the electrons are moving
• the heavier the electrons become
• the more electrons are added to the system

If too many electrons pass through the cable or the lamp, then they will

We refer to the flow of electrons as ​ ​ (a)   and we measure this in the unit of ​ ​ (b)   or just ​ (c)   , represent with ​ (d)  

• current
• ampere's
• amps
• A

Tags

NGSS.HS-PS2-5

AC = ​ ​ ​ (a)  

• alternating current
• direct current
• static voltage
• pulsating current

Tags

NGSS.HS-PS2-5