ACSI 2024 Promo HL Phys P1A

This paper consists of 16 printed pages (including cover page). END-OF-YEAR EXAMINATION 2024 YEAR 5 IB DIPLOMA PROGRAMME PHYSICS (HIGHER LEVEL) PAPER 1A Monday 23 September 2024 2 hours INSTRUCTIONS TO STUDENTS Write your index number in the provided OTAS sheet. Do not open this booklet until you are told to do so. There are 40 questions. Answer all the questions. For each question, choose the answer you consider to be the best and indicate your choice on the answer sheet provided. The maximum mark for paper 1A is [40 marks]. The maximum mark for paper 1A and 1B is [60 marks]. The combined time for both Paper 1A and Paper 1B is 2 hours. INFORMATION FOR STUDENTS Data booklet will be provided. Calculators are allowed for this paper. Index Number Name

2 1 An object is sliding from rest down a frictionless inclined plane. The object slides 1.0 m during the first second. What additional distance will the object slide during the next second? A 1.0 m B 2.0 m C 3.0 m D 4.9 m 2 A ball is thrown horizontally at a speed of 15 m s−1 from the top of a cliff that is 80 m above the surface of the sea. Air resistance is negligible. What is the distance from the bottom of the cliff to the point where the ball lands in the sea? A 45 m B 61 m C 80 m D 240 m 3 A balloon rises at a steady vertical velocity of 10 m s–1. An object is dropped from the balloon at a height of 40 m above the ground. Air resistance is negligible. What is the time taken for the object to hit the ground? A 10 s B 5.1 s C 4.1 s D 2.1 s

3 4 A projectile is launched at an angle above the horizontal with a horizontal component of velocity Vh and a vertical component of velocity Vv . Air resistance is negligible. Which graphs show the variation with time of Vh and of Vv?

4 5 The graph shows how an external force applied to an object of mass 2.0 kg varies with time. The object is initially at rest. What is the speed of the object after 0.60 s? A 7.0 m s−1 B 14.0 m s−1 C 18.0 m s−1 D 28.0 m s−1 6 A mass is released from the top of a smooth ramp of height h. After leaving the ramp, the mass slides on a rough horizontal surface. The mass comes to rest in a distance d. What is the coefficient of dynamic friction between the mass and the horizontal surface? A gd h B 2 d gh C d h D h d

5 7 A person with a weight of 600 N stands on a scale in an elevator. What is the acceleration of the elevator when the scale reads 900 N? A 4.9 m s−2 downwards B 1.5 m s−2 downwards C 1.5 m s−2 upwards D 4.9 m s−2 upwards 8 An object of mass 8.0 kg is falling vertically through the air. The drag force acting on the object is 60 N. What is the best estimate of the acceleration of the object? A zero B 2.3 m s−2 C 7.5 m s−2 D 10 m s−2 9 X and Y are two objects on a frictionless table connected by a