What Is a Circuit?

What is an electrical circuit?

• lets you turn the energy on and off

• a closed path where electricity flows

• stop electricity from flowing through

When all parts of the circuit are connected, it is a ______ circuit. 

• open

• closed

When you flip a light switch on and off you are closing and opening a circuit.

• true

• false

A complete circuit has .......

• motor in it

• switch in it

• two bulbs in it

• no breaks in it

Tags

NGSS.MS-ETS1-1

A​ (a)   circuit is when a current flows through only one pathway.

• series

• parallel

• open

• closed

This circuit won't work. What essential part is missing from this circuit?

• resistance

• source of electric current

• conductor

• ammeter

What is a switch's function in a circuit?

• to make the current hotter or colder

• turn on and off the flow of electrical current

• the pathway that electrical current flows

• to add more power to the circuit

Look at the picture.  Why won't the light bulb light up?

• The wires from the light bulb are not connected to the battery

• The switch is not closed to form a complete circuit 

• The wires from the light bulb are not connected to the switch 

• The wires from the battery are not connected to the switch 

Tags

NGSS.4-PS3-2

A student began building a circuit to light a bulb.  What else does the student need to produce light?

• a battery that has energy

• a wire that is insulated

• a switch that is open

• another bulb of the same size

Tags

NGSS.4-PS3-2

This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -

• the switch gives energy to the battery

• the buzzer is made of special plastic

• the wires are cooled by the surrounding air

• electricity can flow in a complete path

Tags

NGSS.4-PS3-2