U2L10 Quiz

Mr. Rodeschin has a light bulb and a battery. He wants to light up the light bulb, but he needs one more component. What is the item needed?

• Power Source

• Resister / load

• Conductive Wires

• Switch

In executing an experiment, a student places a penny in between two conducting wires in a circuit. What scientific question were students likely trying to answer by executing this experiment?

• Does the penny provide energy to the light bulb?

• Is the penny a conductor or insulator?

• Will the penny prevent sparks forming in the circuit?

• Does the penny use up energy?

The below table shows an experiment where the number of light bulbs was changed in each circuit. All other components stayed the same. Based only on the table, how would you describe the relationship of Voltage, resistance, and current?

• As resistance increases, voltage increases and current increases

• As resistance increases, voltage decreases and current decreases

• As resistance increases, voltage stays the same and current increases

• As resistance increases, voltage stays the same and current decreases

Look at the two objects below. The glass rod is positively charged. What must the charge be on the cloth?

• must be negative

• Must be positive

• must be neutral

The brightness of lightbulbs on a series circuit will ____________________ as you increase the number of lightbulbs.

• Increase

• Decrease

• remamin constant

• not turn on

Which of the following materials, when replacing the lightbulb, would act as a load in the circuit that converts electrical energy to another form of usable energy?

• Rubber eraser

• a gas powered engine

• an electrical fan

• a pencil

How do electrons power a light bulb in a circuit?

• Electrons flow through a circuit, and their motion creates energy

• Electrons transfer their charge from the battery to the light bulb

• Electrons gain energy at the battery and deposit that energy at the light bulb

• Electrons move and provide their color to the light bulb, turning the light bulb on as they pass.

What is the best way to describe a battery within a circuit?

• A storage point for electrons

• power source

• conductor

• load

What type of circuit is show in the image?

• Series Circuit
• Parallel Circuit

Which best describes a parallel circuit?

• Electricity flows along one pathway.
• The flow of electricity comes from one source. 
• Electricity flows along more than one pathway. 
• The flow of electricity comes from more than one source.