Outcomes

Pupils can describe Geiger and Marsden's experiment with gold foil and alpha particles
Pupils can describe and explain the actual structure of the atom
Pupils understand that alpha, beta and gamma radiation are emmited from unstable nuclei in a random process
Pupils describe the nature of all types of radiation

Specification References

7.2 describe the structure of an atom in terms of protons, neutrons and electrons and use symbols such as to describe particular nuclei
7.3 understand the terms atomic (proton) number, mass (nucleon) number and isotope
7.4 understand that alpha and beta particles and gamma rays are ionising radiations emitted from unstable nuclei in a random process
7.5 describe the nature of alpha and beta particles and gamma rays and recall that they may be distinguished in terms of penetrating power

Give pupils the mini white boards and ask them to draw the plum pudding model of the atom. Discuss their drawings.

Ask them to recall the Geiger and Marsden experiment. Discuss.

Invesitgate three different resistors (10 ohm, 20 ohm and 30 ohm), plot an I-V graph, find the gradient, make conclusions
Make a 10 ohm resistor - classic. Give pupils a length of wire and ask them to make a 10 ohm resistor - either use trial and error (quick method) or plot graph of resistance against length and read off ideal value. USe the PASCO kit to find the winner. Award prize if you are feeling generous.

Look at rearranging the V=IR equation. What happens if we increase...

Read pages 180-181 and answer questions Answer Q6 page 198 Or there is a question sheet in the form of a powerpoint in the shared folder

12x the following: