Conduction, Induction, Friction

What is this an example of?

• Heat

• Friction

• Gravity

• Induction

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-3

If a negatively charged rod touches a conductor, the conductor will be charged by what method?

• Friction

• Conduction

• Induction

• Convection

Tags

NGSS.MS-PS2-5

If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that

• friction destroyed electrons in the rod.

• the silk has become negatively charged.

• protons have moved to the rod.

• glass attracts more protons.

Tags

NGSS.MS-PS1-2

Charging by Friction results in two objects with the same charge.

• True

• False

Tags

NGSS.MS-PS2-3

What happens when you touch a metal doorknob after rubbing your shoes on the carpet?

• The doorknob sends a burst of electric current into your body

• Millions of electrons go from your finger into the doorknob

• The doorknob sends millions of electrons into your finger

• Your finger becomes negatively charged

Tags

NGSS.MS-PS2-5

The negatively charged balloon is brought near, not touching, the two cans. What happens?

• The negative charges in Can B move towards the balloon

• The negative charges in Can A move away from the balloon

• The positive charges in Can B move towards the balloon

• The positive charges in Can A move away from the balloon

Tags

NGSS.MS-PS2-3

Two electrically neutral metal spheres, A and B, on insulating stands are placed in contact with each other. A negatively charged rod is brought near, but does not touch the spheres, as shown in the diagram below. How are the spheres now charged?

• A is positive and B is positive.

• A is negative and B is positive.

• A is positive and B is negative.

• A is negative and B is negative.

Tags

NGSS.MS-PS2-3

Walking across a carpet is an example of charge being transferred by

• friction.

• induction.

• contact.

The girl's hair and the comb are attracting  one another.  The hair and the comb have

• opposite charges

• like charges

Tags

NGSS.MS-PS2-3

A method of redistributing the charge on an object by means of the electric field of another object

• Conduction

• Induction

• Convection

• Electricity

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5