Circuit and Electricity

Electrical lights will not come on unless their electrical circuit is a --

• parallel circuit
• series circuit
• closed circuit
• short circuit

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

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

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

• rubber
• tin
• aluminum
• water

• Close switches 1 and 2;  Leave switch 3 open
• Close switch 3;   Leave switches 1 and 2 open
• Close switches 2 and 3 ; Leave switch 1 open
• Close switch 2; Leave switches 1 and 3 open

• The battery is not charged.
• The lightbulb is not part of a complete circuit.
• The circuit does not have a switch.
• The bell uses most of the energy from the battery.

• Only the white bulbs will operate.
• None of the bulbs will operate.
• Only the white and yellow bulbs will operate.
• Only the red and blue bulbs will operate.

What energy do you produce riding your bike? __________

• Sound Energy
• Mechanical Energy
• Light Energy
• Electrical Energy

When you plug in a radio, how do you know the radio produced energy? ________

• You see sound energy
• You feel light energy
• you hear sound energy
• You are energized

All of the following are examples demonstrating mechanical energy EXCEPT –

• an oven cooking food.
• a fan blowing out air. 
• a boy riding a bicycle.
• a girl writing with a pen.