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WorksheetsPhysics 2: Unit 1 FA
Total questions: 23
Worksheet time: 22mins
The law, governing the force between electric charges is known as
Ampere's law
Ohm's law
Coulomb's law
Faraday's law
The negatively charged particles in an atom are called ____.
negatrons
neutrons
electrons
protons
Which is a conductor?
glass
wood
copper
plastic
The process of transferring charge by touching is called __.
charge conveyance
charging by contact
covalent charging
electron exchange
A material in which electrons are able to move/flow easily is a(n) __.
conductor
none of these
electric field
insulator
A method used to charge an object without actually touching the object to any other charged object.
Induction
Conduction
Friction
Grounding
States that the total amount of charge among the objects is the same before the process starts as after the process ends
Law of Conservation of Charge
Law of Conservation of Energy
Static Electricity
Static Discharge
Occurs when there is a buildup of electric charge on the surface of a material
Static Electricity
Grounding
Induction
Conduction
A transfer of electrons between the two objects that are rubbed together
Friction
Conduction
Induction
Grounding
The Law of Conservation of Charge states that charges are neither _________ or _________. SELECT the TWO answers that go in the blank
cancelled
created
acquired
destroyed
An insulator
Is usually a metal
Opposes electrical current meaning electric charges do not flow freely
Conducts electrical current very easily
Works by electrons jumping from atom to atom through a wire
The best insulators are
Plastic, rubber, wood, glass
Silver, air, paper, silicon
Copper, aluminium, gold, steel
Ceramic, fabric, paper clip, cork
Why are the wires of a toaster coated in plastic?
Plastic is stronger than other materials
Plastic is a good electrical conductor
Plastic protects people from electricity because it is an insulator
Only plastic can be made into the right shape of a wire
Which two particles are attracted to each other?
Two neutrons
A proton and an electron
Two protons
An electron and a neutron
As two oppositely charged particles approach each other, what happens to the electrical force between them?
The attractive force increases
The magnitude of the electric force decreases
The repulsive force increases
The magnitude of their charges increases
A balloon is rubbed on a student's head. What occurs because of this?
Charged particles on the balloon are destroyed
Positively charged particles move from head to balloon
Charged particles from the balloon are released into the air
Negatively charged particles move from head to balloon
Which is the value of the constant in Coulomb's equation?
k = 9·10-9
k = 9.8
k = 6.67·10-11
k = 9 ·109
What does "r" measure?
the distance between the two charged objects
the amount of charge carried by the objects
the amount of force between two charged objects
the constant value for forces between the objects
A repulsive force exists between which two particles?
Two neutrons
An electron and a neutron
An electron and a proton
Two protons
What is the formula for calculating electric force using Coulomb's Law?
F = k * (|q1 * q2| / r^2)
F = m * a
F = q * E
F = G * (m1 * m2) / r^2
What units are used to measure Electric Fields?
Newtons
Coulombs
N/C
Volts
