Heat

The thermal energy contained in an object

Temperature

A measure of the average KE of a particle

When heat energy is transferred to an object, its temperature will...

Increase

Temp rise will be effected by...

The mass of the material

What the material is

The amount of thermal energy supplied to the material

Definition of SCH

The amount of heat energy needed to raise
the temp. of 1 kg of a material by 1°C

Equation for SHC

E = m x c x delta theta

What are theunitx of the equation for SHC

J / kg / °c

What does SCH mean?

Different materials need different amounts of thermal energy to raise their temp

By heating 1 Kg of material u can compare

How do you measure the SHC of metals?

Heat a 1 kg block of metal

Measure the temp rise every minute

Calculate the thermal energy gained by using the formula

Equation for the change in thermal energy...

P.d x current x time (power x time)

Is the SHC of water high or low?

Very high

Specific latent heat

The heat energy required to make 1 kg of substance change state at a constant temperature

SLH equation

Energy = mass x Specific heat capacity

Calculating % uncertainty

Your value for L - accepted value for L

Divide the answer by the accepted value

Multiple by 100

Pressure equation

Pa = height × density of fluid × gravitational field strength

Gas pressure equation

P = F / A

pressure...

The force applied per unit surface

Is pressure indirectly or directly proportional to volume?

Indirectly

What is the equation for pressure and volume?

PV = a constant

Pressure equation

P = F / A

Density equation

Density = mass ÷ volume

Why does an object flow?

Because its density is less than the density of liquid

Rutherfords experiment...

R fired alpha particles at a thin piece of gold foil

The plum pudding model would predict that all would pass through

R found that a few bounced back

What was rutherfords conclusion?

A very small central nucleus with a positive charge

Nearly all the mass is in the nucleus

Negative charges orbiting at a relatively large distance from the nucleus