Types of Charging

Charging by rubbing is due to -

• Friction

• Induction

• Conduction

• Contact

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

• Friction

• Conduction

• Induction

• Convection

Choose TWO objects that negatively charged when rubbed.

• Nylon

• Polythene

• Glass

• Animal fur

Tags

NGSS.MS-PS2-5

Choose the correct reason why the hair stand and attracted to the balloon when the balloon is rubbed to the hair?

• Both balloon and hair are neutral

• Both balloon and hair are same charged

• The balloon is negatively charged and hair is neutral

• The balloon and hair are different charged

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What types of charges attract?

• Positive and Positive

• Positive and Neutral

• Negative and Neutral

• Positive and Negative

Tags

NGSS.MS-PS2-3

Why does the child's hair stick up?

• The boy is grounded since he's at the bottom of the slide

• He gained a charge from the slide, and since he's not grounded, his hairs have the same charge so they repel one another

• He gained a charge from the slide, and since he's not grounded, his hairs have opposite charges so they repel one another

• When hair is neutral, some have a positive side and some have negative side, so they will attract to each other, making it stand up

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

When a balloon is rubbed on clothes it acquires a charge by ___________

• Induction

• reduction

• friction 

• concuction

During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that ...

• the plastic strip acquired extra protons from the cotton.

• the plastic strip acquired extra protons from the charging process 

• protons were created as the result of the charging process

• the plastic strip lost electrons to the cotton during the charging process 

What is the process called when a charged object is brought near a neutral object, causing a separation of charges within the neutral object?

• Friction

• Conduction

• Induction

• Convection

Tags

NGSS.HS-PS3-5

Which of the following materials will become positively charged when rubbed with wool?

• Glass

• Rubber

• Polythene

• Silk

Tags

NGSS.MS-PS2-3