Download Physics Chapter 2: Key words to understand

Physics Chapter 2: Key words to understand
There are lots of new key terms that you need to make sure you understand in preparation for your exam. It’s really
important that you recognise what each of the words mean and are able to use them correctly in a sentence. This
will help you to explain ideas scientifically and ensure you pick up important marks in your exam.
Some tips for learning science vocabulary.
Tip 1 -Play some games with the keywords
You could play hangman with your friends or family using the words you need to learn. Make sure you explain what
the word means when they have guessed it.
You could play Pictionary for some of the energy types or renewable energy sources. Ask someone to draw you a
picture for one of these terms and see if you can guess which one they are drawing.
You could make a puzzle such as a crossword or a key word wordsearch
http://www.armoredpenguin.com/crossword/
Tip 2 – Use flash cards
Write out the key word and the definition on separate cards, mix them up and see if you can match the keyword
with the correct description.
Write the keyword on one side and the definition on the other. Look at the keyword side and see if you can
remember the definition or read the definition and try to remember the keyword. Turn the card over to check, or
ask someone else to read them out to you.
See if you can sort the keywords into groups of similar words. For example, you could group together all the words
that give a different type of energy. Try to explain why you have grouped them together to a friend or family
member.
Tip 3 – Spelling strategies
Use the spelling strategies that you talk about in tutor time to help with any words that you find difficult to spell.
Break it into sounds
Break it into syllables
Break it into word parts
Use a mnemonic
Refer to word in the same family
Say it as it sounds
Words within words
Make connections between words
Think about the meaning of words
Apply spelling rules
Learn by sight
(d-i-a-r-y)
(re-mem-ber, con-tin-ent)
(dis+satisfy)
(necessary—one collar, two sleeves, rhythm has your
two hips moving)
(muscle—muscular)
(Wed-nes-day)
(Parliament—I AM parliament, GUM in argument)
(bright, light, night, etc)
(bi+cycle = two+wheels)
(writing, written)
(look—cover—write—check)
Lesson 1:- Charging up
Atom
Attract
Current
Electric Charge
Electric Field
Electron
Lightning
Negative
Neutral
Neutron
Positive
Proton
Repel
A neutral particle, everything is made of atoms
Be pulled together
The flow of electrical charge (electrons around a complete circuit per
second)
A property of a material (or particle) which can be positive or negative
A region where a charge material or particle experiences a force
A negatively charged particle found in atoms. Electrons move through a
wire when a current flows
A current through the air which produces light and sound
The charge on an electron, or a material which has had electrons
transferred to it
Describes and object or particle which has no charge, or on which
positive and negative charges cancel out, giving no overall charge.
A neutral particle found in atoms
The charge of a proton, or the charge of a material which has had
electrons transferred from it.
A positively charged particle found in atoms
Be pushed away from each other
Lesson 2:- Circuits and Current
Ammeter
Amps
Battery
Cell
Current
Motor
Switch
A device for measuring electrical current in a circuit
Units of measurement for measuring electrical current. (symbol A)
Two or more electrical cells joined together.
A chemical store of energy which provides the push that moves charges
around a circuit
The flow of electrical charge (electrons) around a complete circuit per
second
A component or machine which spins when current passes through it
A component which controls the current by making or breaking the
circuit.
Lesson 3:- Potential Difference
Potential difference
Rating
Voltage
Voltmeter
Volts
A measure of the push of a cell or battery, or the energy that the cell
or battery can supply
The value of potential difference at which a cell or battery opperates
A measure of the strength of a cell or battery used to send a current
round a circuit
A device for measuring voltage
A unit of measurement of voltage (unit V)
Lesson 4:- Parallel and series
Parallel
Series
A circuit on which there are two or more paths or branches for the current.
A circuit in which components are joined in a single loop
Lesson 5:- Resistance
Conductor
Insulator
Ohms
Resistance
Material which conducts charge or energy well such as metal or graphite
A material which does not conduct electricity or energy well
The units of resistance
How difficult it is for current to flow through a component in a circuit.
Lesson 6:- Magnets and Magnetic fields
Magnetic field
Magnetic field lines
Magnetic material
North pole
South Pole
A region in which there is force on a magnet, or magnetic material
Imaginary lines which she the direction of the force on a magnetic material
A material which is attracted to a magnet such as iron, steel, nickel or cobalt
The pole of the magnet which points towards north
The pole of the magnet which points towards the south
Lesson 7 :- Electromagnets
Core
Electromagnet
Magnetise
A rod of magnetic material placed inside a coil to make the magnetic field of an
electromagnet stronger
A temporary magnet produced using electric current
Make into a magnet
Lesson 8:- Using Electromagnets
Relay
Electrical device which uses current flowing through it in one circuit to switch on and of a
current in a second circuit.