Circuits

What is a switch's function 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 able to move easily

• Circuit
• Insulator 
• Resistance 
• Conductor 

Tags

NGSS.MS-PS2-3

This circuit is .....?

• open
• parallel
• closed
• The cutest little circuit evah!

A class prepared some electrical circuits using battery, connecting wires, and three light bulbs.  Which of these circuits can make the three bulbs light?

• A
• B
• C
• D

Tags

NGSS.MS-ETS1-2

The electrician in this picture is wearing rubber gloves for protection.  The purpose of the rubber gloves is to --

• keep the electrician dry
• create an electrical circuit
• produce electricity
• protect the electrician

Which of these substances conducts electricity the best?

• wood
• brick
• copper
• plastic

What material would be safest to use as an insulator to cover electrical wires?

• rubber
• tin
• aluminum
• water

Which energy transformation most likely occurs in a steam iron?

• electrical energy changes to heat energy
• electrical energy changes to sound energy
• mechanical energy changes to heat energy
• mechanical energy changes to light energy

Tags

NGSS.MS-PS1-4

Which form of energy is being used by the toaster?

• chemical
• electrical
• solar
• nuclear

Bits of paper are attracted to the surface of this balloon.  What attracts the paper pieces to the balloon?

• Friction
• Static Electricity
• Magnetism
• Potential Energy

Tags

NGSS.MS-PS2-3