Question One a. Define the following terms a. Vector quantity b. Scalar quantity (1 mark) (1 mark) (1 mark) (1 mark) b. Give two supplementary quantities stating the respective units (4 marks) c. State the two types of errors in measurements (2 marks) d. Explain how to minimize the errors above (2 marks) e. A truck of mass 2,000 kg starts from rest on horizontal rails. Find the speed 3 seconds after starting if the tractive force by the engine is 1,000 N. (4 marks) f. A bullet of mass 10g is shot into water melon of mass 0.2kg which is resting on a c. Physical quantities d. System of units -1 platform. At the time of impact, the bullet is travelling horizontally at 20ms Calculate the common velocity after impact (3 marks) g. A ray of light travelling through a liquid of absolute refractive index 1.4 is incident on the plane surface of a perspex block at an angle of 55. Calculate the angle of refraction in the Perspex if it has an absolute refractive index 1.5 h. state two conditions for total internal reflection to take place. i. An object is placed 10cm in front of a concave mirror of radius of curvature 15 cm. Find the position, nature, and magnification of the image in each case. (3 marks) (2 marks) j. List two applications of magnetic effect of electric current. (4 marks) (2 marks)