Electrical Energy

Usually, the electric charge that moves is the _______. They can move from one object to another, causing the material to take on a temporary change.

• electron

• proton

• static

Tags

NGSS.MS-PS2-5

Electricity is useful, but can be dangerous if you are not careful. Many safety devices have been developed to make using electricity safer such as ______________.

• electrical wires and surge protectors

• a metal pole and a surge protector

• insulators and electrical wires

Tags

NGSS.MS-PS2-3

Units called ______ describe how strongly electrons flow from one object to another.

• joules

• volts

• watts

Particles with the ___________ charges are attracted to each other.

• same

• opposite

Tags

NGSS.MS-PS2-3

Particles with the ___________ charges repel from each other.

• same

• opposite

Electric charge travels fast in a circuit- almost as fast as the speed of light.

• True

• False

Which items are good insulators?

• wood, copper, plastic

• glass, plastic, copper

• wood, glass, and plastic

You and your friends climb to the top of a hill to sled ride. You friend pushes you down the hill and end up at the bottom. When do you have the greatest amount of kinetic energy?

• while you are sliding down the hill

• while you are climbing the hill

• at the bottom of the hill, when you are stopped

• at the very top of the hill, just before your friend pushes you

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A ______ is formed when an electric current passes through an unbroken path of conductors.

• circuit

• insulator

• electron

• proton

A ____ circuit has only one conductive path.

• series

• parallel

• short