Lesson on Electricity and Magnetism

To complete a circuit the switch must be

• unattached

• open

• closed

Where is the strongest attraction force of the magnet?

• at the poles

• in the middle

• above the magnet

• below the magnet

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?

• 25 V

• 10 V

• 2.5 V

• 0.4 V

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?

• 3 Amps

• 192 Amps

• 2 Amps

• 4 Amps

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm

• 3 Ohms

• 4 Ohms

• 12 Ohms

Electricity is the flow of _________.

• Protons

• Neutrons

• Electrons

What kind of circuit is this?

• series

• parallel

Which statement is true?

• Lights in the series circuit are brighter than the parallel.

• Lights in the parallel circuit are brighter than the series.

• Both circuits have the same brightness

• Neither circuit will light the bulbs

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Add more coils of wire to the nail.

• Use a smaller battery.

• Reverse the poles of the magnet.

• Remove all the coils and the nail.

Tags

NGSS.MS-ETS1-1

What two forces are required for generators and electric motors to work? 

• magnetism and thermal 

• electricity and thermal 

• electricity and magnetism 

• magnetism and radiant 

Tags

NGSS.MS-PS2-3