Electricity

Which of the following describes an example of current electricity?

• A lightning bolt produces sound and light.

• A student feels a shock when she touches a doorknob after walking across a carpeted surface.

• A balloon sticks to the wall after being rubbed with a piece of wool.

• A battery connected to a motor in a toy car allows the car to move.

Which of the following proves that some electricity can be harnessed by humans and converted into power?

• a. the fact that a circuit is needed for electricity to flow

• b. people using wind turbines to generate power in their homes

• c. lightning striking and damaging computers

• d. static electricity shocking you as you touch a doorknob

Identify the three parts needed to make a circuit

• a. Load, baterry and wire

• b. Load, nail, conductor

• c. insulator, light bulb and a battery

• d. Load, battery and lightning

Which of the following best describes electricity that is naturally occurring?

• a. human beings harnessing the sun for solar energy

• b. static electricity building up under a blanket

• c. Geothermal energy being harnessed and converted by people

• d. none of the above

Which of the following would repel each other?

• a. protons and protons

• b. electrons and neutrons

• c. protons and electrons

• d. electrons and protons

Tags

NGSS.MS-PS2-3

Which of the following best describes a charge?

• a. electricity flowing through a wire

• b. either positive or negative

• c. having an equal number of positive and negative charges

• d. a force that slows or stops when objects are rubbed together

a object that allows energy such as heat or electricity to move through it efficiently.

• Conductor

• Insulator

• Netural

• Repel

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Copper and steel is an example of ?

• Insulators

• Conductors

Tags

NGSS.MS-PS2-3

A object that does NOT allow energy such as heat or electricity to move through it efficiently.

• Insulator

• Conductor

Is this wood an example of an insulator or conductor?

• Conductor

• Insulator

Tags

NGSS.MS-PS3-4