Science Ch. 3 - Electricity

Which of the following is a resistor when transforming electricity into heat energy?

• a car engine

• a solar panel

• a toaster

• a freezer

Why would an electric current not be able to flow in a series circuit?

• there is a resistor

• there is a break in the circuit

• the switch is on

• there is a wire

Which one is a resistor?

• a filiment

• a power cord

• a battery

• a parallel circuit

In a flashlight, the battery is the

• resistor, converting electricity into light energy.

• insulator, allowing the flashlight to be handled safely.

• conductor, carrying charges from the battery to the light bulb.

• switch, opening and closing the circuit.

• energy source, providing the energy for the flashlight to generate light.

Which of the materials would be a good conductor?

• an eraser

• a rock

• glass

• gold

In a flashlight, the handle is the

• resistor, converting electricity into light energy.

• insulator, allowing the flashlight to be handled without an electric shock.

• conductor, carrying charges from the battery to the light bulb.

• switch, opening and closing the circuit.

• energy source, providing the energy for the flashlight to generate light.

What happens in a parallel circuit if one of the loops is broken?

• electricity will stop flowing through all of the loops

• electricity continue flowing through the unbroken loops

• electricity will still flow through the broken loop

• the energy source will stop providing energy

In a flashlight, the wire is the

• resistor, converting electricity into light energy.

• insulator, allowing the flashlight to be handled without an electric shock.

• conductor, carrying charges from the battery to the light bulb.

• switch, opening and closing the circuit.

• energy source, providing the energy for the flashlight to generate light.

What is one use of an insulator?

• It makes electrically charged objects safe to handle.

• It slows down the flow of electric current to produce heat and light.

• It stores electric energy for later.

• It allows electric current to flow through it.

Tags

NGSS.MS-PS3-3

In a flashlight, the light bulb is the

• resistor, converting electricity into light energy.

• insulator, allowing the flashlight to be handled without an electric shock.

• conductor, carrying charges from the battery to the light bulb.

• switch, opening and closing the circuit.

• energy source, providing the energy for the flashlight to generate light.