Review of Lessons 4 - 7 Electricity

Each circuit has a switch. Identify the open and closed circuits.

• Circuit 1 is open, Circuit 2 is closed

• Circuit 1 is closed, Circuit 2 is open

• Both circuits are open

• Both circuits are closed

Tags

NGSS.4-PS3-2

Which object is an insulator? Which is a conductor? Select TWO correct answers.

• rubber hair tie is an insulator

• rubber hair tie is a conductor

• aluminum key is an insulator

• aluminum key is a conductor

What is a conductor?

• A material that allows electric current to move through it easily

• A material that does not allow electric current to flow through it

• A device that stores electric charge

• A type of battery.

An insulator is a material that _______ allow electric current to flow through it.

• does not

• does

• sometimes does

• always does

Which circuit is open?

• Circuit 1

• Circuit 2

• both

• none

Which materials are conductors?

• A) Aluminum, copper, iron, steel

• B) Rubber, plastic

Which materials would stop or slow electricity?

• Copper wire

• Glass marble

• Rubber eraser

• Aluminum key

What is mechanical energy?

• Energy due to motion or position

• Energy flowing through a circuit

• Light energy

• Traveling heat energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following is an example of mechanical energy?

• Light shining from a bulb

• Sound coming from a guitar

• Heat coming off a stove

• Electrical current in a wire

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following describes thermal energy? Select TWO correct answers.

• The movement of particles within an object.

• The energy of light waves.

• The energy of an object due to its motion.

• The energy when heat moves between objects.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3