1
Q
what does a voltmeter measure?
A
the potential difference between 2 points in the circuit
2
Q
voltmeters have to be attached in?
A
parallel
3
Q
what 2 roles does the cell have within the circuit?
A
- drives the current around the circuit
- transfers energy to the components
4
Q
what is voltage?
A
the energy transferred per unit charge passed
5
Q
what is a volt?
A
a joule per coulomb
6
Q
formula for voltage?
A
energy / charge
7
Q
formula for voltage( with resistance) ?
A
voltage = current x resistance
physics
flashcards
Decks in class (47)
# Cards
-
sound waves20
-
longitudinal and transverse waves10
-
wave properties14
-
EM spectrum23
-
distance and velocity time graphs10
-
forces9
-
skydiver in free fall5
-
hookes law9
-
momentum27
-
reflection and refraction28
-
snells law24
-
total internal reflection6
-
current5
-
voltage7
-
resistance9
-
current in series and parallel6
-
voltage in series and parallel4
-
combined resistance2
-
IR graphs4
-
electrical components11
-
electrical power and fuses10
-
electrical safety13
-
AC and DC7
-
conductors1
-
how insulating materials can be charged by friction0
-
ideal gases32
-
radioactivity97
-
energy transfers and stores20
-
conservation of energy6
-
thermal conduction11
-
convection4
-
thermal radiation5
-
reducing energy loss14
-
work done8
-
gravitational potential energy8
-
kinetic energy5
-
power3
-
energy resources10
-
comparing different energy sources16
-
density7
-
density practicals2
-
pressure between solids5
-
pressure in liquids7
-
solids liquids and gases10
-
changes of state2
-
practical-changes of state10
-
specific heat capacity6
