Energy Review

What is an electric current?

• a mix of heat and sound

• when objects collide

• a group of magnets

• a flow of electric charges

These objects do not transfer energy through them easily. They are called __________.

• conductors

• insulators

These objects do transfer energy through them easily. They are called __________.

• conductors

• insulators

Tags

NGSS.MS-PS3-5

What is the difference between an electrical circuit with an open loop and one with a closed loop?

• The circuit with an open loop will transfer energy.

• The circuit with a closed loop will transfer energy.

A _______________ stores energy and transfers it to electrical energy when it's connected to metals.

• motor

• buzzer

• battery

• light bulb

All sounds start with...

• a source of heat.

• a vibration.

• a collision.

• a moving object.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What do you call the ability to do work?

• motion

• energy

• force

• momentum

Which is kinetic energy?

• energy that is stored in the position, or structure, of an object

• energy that is increasing

• energy that is decreasing

• the energy of a moving object

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which is potential energy?

• energy that is stored in the position, or structure, of an object

• energy that is increasing

• energy that is decreasing

• the energy of a moving object

Tags

NGSS.MS-PS3-2

What type of energy does a roller coaster car at the top of a hill have?

• kinetic energy

• energy of motion

• heat energy

• potential energy

Tags

NGSS.MS-PS3-2