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

Proton

Electron

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

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

• Conduction

• Induction

• Friction

• Polarization

Tags

NGSS.MS-PS2-3

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

• Bring the magnets closer together

• Move the magnets further away

• Increase the strength of the magnets

• Decrease the strength of the magnets

Tags

NGSS.MS-PS2-3

Select all that apply: Which of the following would create a pulling force (attracting each other)?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which of the following is NOT TRUE about magnetic fields:

• Magnetic fields are why object can be pushed/pulled without touching the magnet

• Field lines move from North to South

• The magnetic field is stronger when the field lines are closer together

• The field is stronger further away from the poles

Tags

NGSS.MS-PS2-3

​ (a)   will INCREASE their electric potential energy. ​

(b)   will DECREASE their potential energy.

• Pulling them away form each other
• Pushing them together

Tags

NGSS.MS-PS2-3

NGSS.MS-PS3-2