Current Electricity

Which one does NOT represent Ohm's Law?

• V = I x R

• $R\ =\ \frac{V}{I}$
  

• I = $\frac{V}{R}$

• I = $\frac{R}{V}$

An example of a conductor is :

• a glass paperweight
• a plastic cap
• a metal screw
• a wooden handle

Tags

NGSS.MS-PS3-3

In a series circuit  with 4 bulbs:

• a switch is never used
• all of the bulbs become dimmer if another bulb is added
• There are many paths for electricity to take
• the remaining 3 bulbs stay lit if one burns out

An example of an insulator is:

• iron
• silver
• copper wire
• rubber

Tags

NGSS.MS-PS3-3

All wires used in electric circuits should be covered with:

• a colored material.
• a conducting material.
• an insulating material.
• none of these.

Tags

NGSS.HS-ETS1-3

What part of a circuit is this object?

• power source
• load
• pathway
• switch

What is the purpose of a switch?

• To open and close the circuit.
• To carry the electricity through the circuit.
• To make a fun clicking sound
• To supply the power to the circuit

What are the components of a simple circuit?

• wires, switch, outlet
• battery, switch, motor
• wires, light bulb, motor
• wires, battery, light bulb

What is another name for the wires in a circuit?

• Conductor

• Load

• Power Source

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

Tags

NGSS.HS-PS2-5