niche spec

different types of force

gravitational, electrostatic

define elastic behaviour

when the force is removed the material returns to its original shape

proper unit for current

ampere

what things are used to protect the user/device in domestic appliances? (5)

• insulation

• double insulation

• earthing

• fuses

• circuit breakers

what components can be used to indicate the presence of a current in a circuit

• LDR

• lamps

define amplitude

the difference between the maximum displacement and equilibrium position

define wavefront

imaginary planes that connect point on adjacent waves

change in wavelength radio—>gamma

decreases

what else can total internal reflection be used for

prisms

how can you reduce unwanted energy transfer

insulation

define power

rate of doing work

kinetic energy of particles at absolute 0

0

what is absolute 0

-273C

what is the kelvin temperature of a gas proportional to

average kinetic energy of its molecules

other way of measuring ionising radiation

photographic film

what is the energy source for stars

fusion