Static Electricity

Worksheet by Danielle Wiggins
Static Electricity Grade 9 worksheet preview
Subjects
Science
Grades
Grade 9
Language
ENG
Assignments
43 classrooms used this worksheet

Fill in the blanks with the correct term. static electricityrefers to an excess of charges that stay in place on a material.All matter is made of tiny particles called atoms.The negative charges of an atom are called electrons and the positive charges are called protons.When different materials are rubbed together, only the electrons are rubbed off from one material to another.The material that loses the electrons will have an overall positivecharge because it has more protons than electrons.The material that gains the electrons will have an overall negative charge because it has more electrons than protons.The law of electric charges states that opposite charges attract each other and like charges repel each other.How easily charges move through a material is called the material's conductivity.Copper and gold allow electrons to move freely through them, so they are examples of conductors. Glass and plastic do not allow electrons to move easily through them, so they are examples of insulators. Matching conductor A material in which electrical charges can move easily electrically neutral Having equal numbers of positive and negative charges insulators A material in which electrical charges cannot move easily negative charges Electrical charges that can be rubbed off a material positive charges Electrical charges that are left behind when negative charges are rubbed off a material conductivity An indication of how easily charges move winthin a material Which statement from the Law of Electric Charges is demonstrated by each picture? A - opposite charged objects attractB - like charged objects repelC - a charged object will attract a neutral object Decide whether the object described is positively charged or negatively charged. Positively Charged contains more positive charges than negative charges results from losing electrons will attract a negatively charged object will repel a positively charged object Negatively Charged contains more negative charges than positive charges results from gaining electrons will attract a positively charged object will repel a negatively charged object Use the diagram above to determine if the object is positive , negative or neutral You use a plastic comb to comb your hair.The comb becomes negative.The hair becomes positive.As you take clothes out of the dryer, a wool sock clings to a silk shirt.The wool sock has become positive.The silk shirt has become negative.You rub clean a glass mirror with a cotton cloth.The glass becomes positive.The cotton cloth becomes negative.You rub a rubber balloon along a cat's back.The balloon becomes negative.The cat's fur becomes positive.

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