Electricity and Magnetism Test Review

A material where electrical charges can move easily is a....

• insulator

• conductor

• nothing

• rubber

Glass, rubber, wood, and plastic are all examples of ​ (a)   since electricity cannot pass through them.

• Insulators
• Conductors
• Thermel conductivity
• Materials

Label the atom pictured:

a

b

c

Neutron

Electron

Proton

Tags

NGSS.MS-PS1-1

When an object gains electrons, what is its charge?

• Positive

• Negative

• Neutral

• No charge

Tags

NGSS.MS-PS2-3

When an object loses electrons, what is its charge?

• Positive

• Negative

• Neutral

• No charge

Tags

NGSS.MS-PS2-3

Transfer of electrons between two conductors due to two objects sliding against each other.

• Conduction

• Induction

• Friction

• Polarization

Transfer of electrons between 2 surfaces with direct contact is​ (a)   Transfer of electrons between 2 surfaces with no contact is​ (b)  

• conduction
• induction
• Friction
• Polarization

Select all that apply: How can you make an electric force STRONGER?

• Bring the charged objects closer together

• Move the charged objects further away

• Increase the amount of charge

• Decrease the amount of charge

Tags

NGSS.MS-PS2-3

​ (a)   measure the voltage or difference in potential energy and ​ (b)   measure the electric current.

• Volts
• Amperes

Tags

NGSS.MS-PS2-3

In electric currents, ​ (a)   flow from ​ (b)   to ​ (c)  

• Electrons
• Positive
• Negative
• Neutrons

Tags

NGSS.MS-PS1-1