Physics_B_062325

A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?

• plastic straw
• cotton string
• aluminum foil
• rubber eraser

Tags

NGSS.MS-PS2-3

Electrons need a GOOD PATH made of a ______ for them to flow. 

• Conductor
• Insulator

Tags

NGSS.4-PS3-2

The diagram shows a complete circuit but the bulb did not light up. Why?

• The plastic spoon is an insulator of electricity and prevented electric current from flowing through the circuit.

• The plastic spoon is not connected properly and prevented electric current from flowing through the circuit.

• The plastic spoon is a conductor of electricity and prevented electric current from flowing through the circuit.

Tags

NGSS.MS-PS2-3

Metals such as copper and aluminum are good ______________. 

• insulators
• conductors
• circuits
• charges

Tags

NGSS.MS-PS2-3

Which of these could be placed in the gap to complete the circuit?

• rubber band

• iron nail

• wooden toothpick

• paperclip

Which of the following materials would NOT allow electricity to flow through a circuit?

• Aluminum foil

• Copper wire

• Plastic ruler

• Iron nail

What is the main function of a switch in an electric circuit?

• To provide resistance

• To increase the voltage

• To store electrical energy

• To open or close the circuit

If you want to make a light bulb glow brighter in a simple circuit, which of the following should you do?

• Add another battery in series

• Add another bulb in series

• Use a longer wire

• Replace the bulb with an insulator

Which of the following is necessary to complete an electric circuit and allow current to flow?

• An open switch

• A closed path made of conductors

• A plastic insulator

• A broken wire

What happens to the brightness of bulbs in a parallel circuit if one bulb is removed?

• All other bulbs go out

• The brightness of the remaining bulbs stays the same

• The circuit stops working

• The brightness of the remaining bulbs increases