WorksheetsElectricity: Static SJA
Total questions: 40
Worksheet time: 25mins
You rub two balloons with a piece of wool. What will happen when the balloons are brought near each other?
The balloons will repel each other.
The balloons will attract each other.
The balloons will become positively (+) charged.
The balloons will pop.
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
Uncharged object has equal number of these CHARGES.
atoms
protons and electrons
positive and negative
positive and positive
The Law of Conservation of Charges states that
Energy is not created nor destroyed by transferred
Like charges repel and opposite charges attract
Like charges attract and opposite charges repel
Charges are not created nor destroyed but transferred
When an object has more positives charges, it will have a _________ net charge.
Positive
Negative
Proton
Neutral
What is the purpose of a lightning rod on a tall building?
To send charge throughout the building
To ground the charge by sending charges into the ground
To repel the negative charges
To attract the positive charges
Buildup of charges on an object. These charges do not flow but are still.
Current Electricity
Static Electricity
Grounded
Neutral
Instrument used to detect if something is charged. Does not indicate if charge is positive or negative.
Electroscope
Ohmmeter
Lightning Rod
Ground Wire
Loss of static electricity as electrons transfer from one object to another object.
Grounded
Static electricity
Conductor
Discharge
Transfer of charge by rubbing.
Conduction
Induction
Friction
Discharge
How can you tell when static electricity has been discharged?
Heat is released that can be felt.
Light is released and you can feel a shock.
Static electricity gives off many different colors.
The object begins to spin rapidly when it is shocked.
Rubbing objects together causes the _________ particles to move.
positive
negative
neutral
To figure out what kind of ______ something has, you have to see if it has extra positives or negatives.
position
charge
static electricity
Joan rubs two balloons with a woolen sock and suspends them from a fixed point with string. The balloons push away from each other. Which of the following is most likely true?
One balloon has a positive charge, and one balloon has a negative charge.
One balloon has a neutral charge, and one balloon has a negative charge.
Both balloons have a negative charge.
Both balloons have a neutral charge.
Which of these is an example of static electricity?
A piece of metal is repelled by another piece of metal.
A person is shocked by sticking a fork in a toaster oven.
A person's hair stands up straight after taking off a sweater.
A current runs through a wire and a light bulb lights up.
The picture shows a little boy that has gone down a slide. Which sentence BEST explains why his hair is standing up straight after going down the slide?
His hair and the slide have like charges, making them repel each other.
His hair and slide have opposite charges, making them repel each other.
The slide caused friction making each of his hairs have a like charge, which repel each other.
The slide caused friction making each of his hairs have an opposite charge, which attract each other.
Halle has an object with a positive charge on her desk. Which will MOST likely happen if she places an object with a neutral charge near it?
The objects will move away from each other because an electrically charged object will repel a neutral object.
The objects will move toward each other because an electrically charged object will repel a neutral object.
The objects will move toward each other because an electrically charged object is attracted to a neutral object.
The objects will move away from each other because an electrically charged object is attracted to a neutral object.
The center of an atom is called the
neutron
nucleus
proton
electron
These subatomic particles are found inside the nucleus
protons and electrons
neutrons and electrons
protons and neutrons
protons, neutrons, and electrons
Matter is defined as anything that has
mass and volume
length and width
mass and height
volume and length
Most objects you encounter daily are
neutral
positively charged
negatively charged
no charge
When you move a negatively charged rod toward a neutral piece of paper, ______ within the paper move away from the rod, causing the objects to attract.
protons
neutrons
electrons
A neutrally charged object can be attracted to
positively charged objects
negatively charged objects
both positively and negatively charged objects
neutrally charged objects
Does glass tend to gain or lose electrons?
gain
lose
neither
If silk and cotton were rubbed together, cotton would likely _____ electrons.
gain
lose
neither
If PVC and teflon were rubbed together, PVC would become
positively charged
negatively charged
remain neutrally charged
