Energy
What do we call a material that does not conduct heat very well?
insulator
What is Ohm's Law?
V = I R
Which state of matter has the greatest distance between particles?
gas
What do we call the region at the centre of an atom that contains most of the atom's mass?
nucleus
If you heat a container of gas, what happens to the pressure inside?
it increases
In the formula for kinetic energy, what does the m stand for?
mass
Which electrical component only allows current to flow through in one direction?
diode
Which state of matter has the strongest forces of attraction between the particles?
solid
What do we call an atom that has lost an electron?
What piece of lab equipment do we use to measure the volume of a liquid?
measuring cylinder
What type of energy is symbolised by Ee?
elastic potential energy
What is measured in coulombs?
charge
What term describes the amount of energy it takes to change the temperature of a substance?
specific heat capacity
If you start with 100 g of radioactive material, how many grams will remain after two half-lives?
25 grams
What do we call the giant "fans" that generate electricity when they turn in the wind?
wind turbines
Which energy resource comes from heat inside the Earth?
geothermal
50 Hz
What is the formula that relates density, mass and volume?
density = mass / volume
Which type of nuclear decay causes an element's mass number to decrease?
alpha decay
Who discovered the electron?
J J Thomson
When energy is dissipated, it spreads out to the surroundings into which store?
thermal store
In an electric circuit, what particles carry the charge around?
electrons
What do we call the change of state when a liquid changes into a gas below the boiling point?
evaporation
In 1986, a meltdown at a nuclear power plant in Ukraine caused an explosion that scattered nuclear fallout across Europe. Name the power plant.
Chernobyl
What colour is the live wire in a UK plug?
brown