 # Form 5 Physics Mid Year 2014 with answer .pdf - Form 5...

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3Section A: Objective Questions (30%) 1Which of the following lists make up of scalar quantities? AVelocity, acceleration, time BWork, power, inertia CMomentum, impulse, weight DElectric current, energy, distance
2A vernier callipers being used to measure the thickness of glass wall of a boiling tube. The vernier callipers has zero error of 0.02 cm. The internal diameter and external diameter of the boiling tube are measured as shown in Diagram 1 (a) and Diagram 1 (b) respectively. Diagram 1 (a) 0 10 3 cm 0 10 2 5 cm
What is the thickness of the glass wall of the boiling tube?
3Which of the following diagrams shows that the gun shots on a target board is consistent but less accurate?
D 4The gravitational force, F, between two bodies of masses m1and m2which are separated by a distance ris given by the equation below. 221rmGmFwhere Gis universal gravitational constant. What is the unit of G?
5A trolley pulled a ticker tape through a ticker timer of frequency 50 Hz and the tape produced is shown in Diagram 2. Diagram 2 Find the acceleration of the trolley.
2 0 10 3 cm 0 10 2 5 cm 5 3
46During collision, the large bumper of a vehicle serves as a safety feature to reduce
7An object is launched vertically upwards from point X. The object reaches the maximum height at point Y. If the air friction is neglected, which of the following statements is correct? AThe kinetic energy of the object at point Y is maximum. BThe momentum of the object at point Y is maximum. CThe acceleration of the object at point Y is zero. DThe acceleration of the object at point Y is the same as that at point X.
8Diagram 3 shows an object with a weight of Wbeing hung between two sides of a wall using ropes K, L and M. The tensions of rope K and rope L is T1and T2respectively. Which of the vector diagrams shows the correct triangle of forces when the object is in static equilibrium?
B
D
Diagram 4 shows an object of mass 24 kg is pulled up rough ramp using a force of 100 N. The object is moving up the ramp at constant speed of 1.0 ms1. Diagram 4 Calculate the energy lost in form of heat to overcome the friction moving up the ramp. A308 J B320 J C480 J D492 J

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