End Of Years Flashcards
(29 cards)
What is a circuit with one loop?
A series circuit
What does an ammeter measure?
current
What is the charge flowing per second?
current
Two positively charged rods will…
repel
The charge on a proton is…
positive
A rod with no charge is…
neutral
The charge on an electron is…
negative
What side of the magnet attracts?
south
What side of the magnet repels?
north
What is the law of conservation of energy?
It cannot be created or destroyed: it can only change form
What is a parallel circuit?
a circuit with junctions
What is potential difference measured in?
volts
How can you measure potential difference?
a voltmeter
Objects that allow electricity to electricity to flow through them are called?
conductors
What is the measurement for resistance?
Ohms
Name all the energy stores
magnetic.
internal (thermal)
chemical.
kinetic.
electrostatic.
elastic potential.
gravitational potential.
nuclear.
What is the best emitter
Matte black
what is the worst emitter
silver
What is conduction?
When vibrating particles pass on energy to neighbouring particles
What is thermal equillibrium?
When two objects are at the same temperature
How does heat travel in fluids?
convection
What is a convection current physics?
when heat is transferred by the movement of liquids or gases.
What objects make it hard for energy to travel?
Wood or plastic
What is an insulator?
a material that does not conduct heat well
