7 P 2 3

What is required to supply electric power to a television?

• a conductor, to produce a closed circuit that includes the television and the wall outlet

• a conductor, to produce an open circuit that includes the television and the wall outlet

• an insulator, to produce a closed circuit that includes the television and the wall outlet

• an insulator, to produce an open circuit that includes the television and the wall outlet

A circuit consists of four light bulbs connected in a row. If the first light bulb burns out, what will most likely happen to the other light bulbs?

• The other light bulbs will also go out.

• The other light bulbs will blink on and off.

• The other light bulbs will become 33% brighter.

• The other light bulbs will become 25% dimmer.

What term is defined as "a continuous flow of electric charge"?

• current

• insulator

• resistance

• superconductor

Tags

NGSS.HS-PS2-5

In a closed circuit made of a batter, a wire, a lightbulb, and a switch, which part's main responsibility is allowing electricity to flow over a long distance?

• battery

• lightbulb

• switch

• wire

When energy transforms from one type to another, some energy is usually also lost. The lost energy is of which type?

• electrical

• heat

• light

• potential

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which point has the most potential energy?

• G

• F

• B

• A

Tags

NGSS.MS-PS3-2

At which point of the roller coaster is potential energy the greatest?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS3-2

Which of the following energy transformations occur when the lamp is plugged into the outlet and the bulb is inserted into the lamp?

• thermal - electrical - light

• electrical - light - thermal

• light - thermal - electrical

• electrical - thermal - light

What type of energy is stored in batteries or food?

• Potential energy

• Thermal energy

• Chemical energy

• Mechanical energy

Tags

NGSS.MS-PS3-2

What type of energy do springs and stretched rubber bands store?

• thermal kinetic

• elastic potential

• electrical kinetic

• gravitational potential