Grade 9 static electricity

An atom has

• postive electrons and negative protons

• postive neutrons and negative electrons

• negative electrons and positive neutrons

• negative electrons and positive protons

Tags

NGSS.MS-PS1-1

Static electricity involves

• a transfer of electrons

• a flow of positive charge

• a transfer of protons

• a flow of negative charge

Which particle is easiest to remove from an atom?

• proton

• electron

• neutron

• nucleus

Static electricity is the result of

• an imbalance of charge on the surface of an object

• the flow of charge moving through a conductor

• lightning

• the flow of charge moving through an insulator

If a build up of negative charge occurs in your body and you touch a neutral, metal door handle, then your body becomes

• less positive

• more negative

• less negative

• neutral

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A rod is rubbed with a cloth as shown in the diagram. Which of one the following is correct?

• the rod becomes negatively charged and the cloth positively charged

• the rod becomes positively charged and the cloth negatively charged

• both the rod and cloth become positively charged

• the rod becomes neutral and the cloth negatively charged

Tags

NGSS.MS-PS2-3

Two balloons hanging from a piece of string are each rubbed with identical pieces of cloth. What will happen if one balloon is brought close to the other?

• the balloons will be attracted to each other

• nothing will happen

• the balloons will repel each other

• both balloons will pop

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5