Page 3 of 36 Page 3 metadata Page 3 of igcse/edexcel/4ph1-1p-que-20240523.pdf comet(2) gravity(8) orbits(12) planet(2)
Page 4 of 36 Page 4 metadata Page 4 of igcse/edexcel/4ph1-1p-que-20240523.pdf activity(9) alpha(8) atom(4) beta(8) gamma(5) half-life(9) multiple-choice(12) neutron(2) nuclear(16) proton(2) radiation(21)
Page 5 of 36 Page 5 metadata Page 5 of igcse/edexcel/4ph1-1p-que-20240523.pdf activity(9) alpha(8) atom(4) beta(8) gamma(5) half-life(9) multiple-choice(12) neutron(2) nuclear(16) proton(2) radiation(21)