OCR - AS Level Physics A H156/01 Breadth in physics paper 1

SECTION A You should spend a maximum of 25 minutes on this section. Answer all the questions. Write your answer to each question in the box provided. 1 Which statement is not correct about an electromagnetic wave? A It can be diffracted. B It can be polarised. C It is a longitudinal wave. D It can travel through a vacuum. Your answer [1] 2 A narrow beam of light in air is directed at the surface of a triangular glass prism. Which is the correct diagram for the light refracted by the prism? prism prism prism prism D C B A Your answer [1] PMT 3 © OCR 2017 Turn over 3 The force F against extension x graphs for four different wires A, B, C and D up to their breaking points are shown below. 0 x F 0 A B C D Which wire has the greatest work done on it before it breaks? Your answer [1] 4 An object experiences two forces, 3.0 N and 4.0 N, in the same plane. The directions of the forces are not known. What is the magnitude of the resultant force F acting on the object? A F = 5.0 N B F = 7.0 N C 1.0 N G F G 7.0 N D 4.0 N G F G 7.0 N Your answer [1] PMT 4 © OCR 2017 5 A projectile is fired in a horizontal direction at time t = 0. Ignore air resistance. Which graph correctly shows the horizontal component of the velocity VH of the projectile against time t? 0 t VH A 0 0 t VH B 0 0 t VH C 0 0 t VH D 0 Your answer [1] PMT 5 © OCR 2017 Turn over 6 A ball, initially at rest, is struck by a hockey stick. It leaves the hockey stick at speed v. Which quantity, together with the mass of the ball, can be used to determine v? A The time of the impact. B The weight of the hockey stick. C The impulse of the force. D The final momentum of the hockey stick. Your answer [1] 7 Two forces act on an object in the same plane. Which diagram shows a couple? object object A B C D object 10N 20N 10N 10N 20