Physics at L 6 FC What is Physics

Physics at L 6 FC

Ø What is Physics? Ø What sort of topics are you expecting to study at A-level Physics? Ø Why is Physics literally one of the best subjects to study at A-level and/or university? https: //www. youtube. com/watch? v=o. Op. Quf. Ncx 0 I

Course content Full A-level only

st AS/1 topics year

nd A 2/2 topics year

To be successful in A-level Physics you need to be good at maths. In particular, you need to be especially confident with the following: Standard Index Form (huge and tiny numbers) Significant figures (used at A-level instead of d. p. ) Rearranging formulae (algebra) Trigonometry (soh cah toa) 2 nd year only: Exponentials Logarithms (base 10 and natural base e)

The SUVAT equations! (an A-level Physics classic) v = final velocity u = initial velocity a = acceleration t = time taken for the velocity change s = distance travelled during the velocity change v = u + at v 2 = u 2 + 2 as s = ½ (u + v) t s = ut + ½ at 2 s = vt – ½ at 2

Question 1 Calculate the final velocity of a car that accelerates at 2 m/s 2 from an initial velocity of 3 m/s for 5 seconds. v = u + at v = 3 + (2 x 5) = 3 + 10 final velocity = 13 m/s

Question 2 A stone is dropped from the edge of a cliff. It reaches the bottom after 1. 5 seconds. Calculate the height of the cliff. s = ut + ½ at 2 s = 0 x 1. 5 + ½ x 9. 81 x 1. 52 s = ½ x 10 x 2. 25 cliff height = 11. 0 m

Spiderman and Gwen Stacey Watch the clip from the film…

Spiderman and Gwen Stacey has fallen from the top of a clocktower. Spiderman fires a web from his webslinger to try and catch her. Gwen accelerates downwards at 9. 8 m/s 2. The clock tower is 125 m tall. a) Use one of the SUVAT equations to find the time taken for Gwen to reach the floor. 5. 05 s If Spiderman had stayed put and fired his web the moment Gwen began to fall, he could actually have saved her. Assume the web travels at a constant speed of 25 m/s and that Spiderman has to fire his web at a slight (negligible) angle as he is not directly above Gwen. b) Show that Spiderman could save Gwen Stacey. 5. 0 s * Extension A*: Actually, Spiderman does leap off the beam so that he is also falling himself, but he was delayed in jumping off. If he leaps off 2 sec after she falls, can he save her? Time for web to reach Gwen = 5. 10 sec; so sadly, he cannot save her.

** Extension question A bullet is fired vertically upwards from a shotgun at 80 m/s. Air resistance can be ignored. Calculate: a) The maximum height reached by the bullet. b) The time taken for the bullet to hit the ground. c) The speed of the bullet as it hits the ground. Answers: a) 326. 2 m b) 16. 3 s c) 80 m/s

st 1 Yr exams

nd 2 Yr exams + Separate certificate to supplement A-level qualification

Summer project • • Learn the prefixes Learn the SUVAT equations Learn the base units Additional physics reading

Hope to see you all in September!