1 Which of the following is the correct method for making predictions from a graph? flag bookmark A Interpolation of the graph. B Extrapolation of the graph. C Calculate the gradient of the graph. D Calculate the area under the graph. T4 Chapter 1.2 Scientific Investigation Extrapolation extends the graph’s trend beyond the plotted data, allowing predictions for values outside the given range. Interpolation only estimates within the data range.
2 Diagram 1 shows a strip of ticker tape of a trolley. Which of the following statements is correct to describe the movement of the trolley? flag bookmark A Uniform deceleration. B Zero deceleration. C Uniform acceleration. D Zero acceleration. T4 Chapter 2.1 Linear Motion The spacing between dots decreases in the direction of motion, indicating a constant decrease in speed. Hence, the trolley undergoes uniform deceleration.
3 Diagram 2 shows velocity-time graph for a car. Which acceleration-time graph describes the motion of the car? flag bookmark A B C D T4 Chapter 2.2 Linear Motion Graphs From 0 to 10 s, the gradient is (20-0)/10 = 2 m/s². From 10 to 15 s, the gradient is (0-20)/5 = -4 m/s², which matches graph B.
4 Diagram 3 shows a black smith striking a hammer handle against a hard surface and suddenly stopping it to tighten the hammer head. Based on the situation above, what is the physics concept involved? flag bookmark A Inertia. B Impulse. C Momentum. D Resultant force. T4 Chapter 2.4 Inertia When the handle stops suddenly, the hammer head keeps moving down due to its inertia, tightening the fit.
5 Diagram 4 shows movement of an air-filled balloon when it is released by a student. What will happen to the total momentum if a larger balloon is released by the student? flag bookmark A Increases. B Decreases. C Zero. T4 Chapter 2.5 Momentum The total momentum remains zero because the balloon and the expelled air move in opposite directions with equal momentum, cancelling each other out.
6 Diagram 5 shows the graph obtained from an experiment to study the relationship between acceleration, a, and mass, m, for an object. What is the relationship of the graph? flag bookmark A a increases with m. B a directly proportional with m. C a inversely proportional with m. D a increases linearly with m. T4 Chapter 2.6 Force Since the graph of a against 1/m is a straight line through the origin, a is directly proportional to 1/m. This means a is inversely proportional to m.
7 Diagram 6 shows two bodies at rest on the Earth and each experiences a force with the same magnitude. What is the physics law involved? flag bookmark A Newton's First Law of Motion. B Newton's Second Law of Motion. C Newton's Third Law of Motion. D Newton's Universal Law of Gravitation. T4 Chapter 2.7 Impulse and Impulsive Force The mutual attraction force between two masses, equal in magnitude, is the gravitational force described by Newton's Universal Law of Gravitation.
8 Diagram 7 shows planet M and planet N orbiting the Sun. Which of the following statement is correct? flag bookmark A The gravitational force between the Sun and planet M is higher than planet N. B The orbital radius of planet M is lower than planet N. C The escape velocity of planet M is higher than planet N. D The orbital period of planet M is higher than planet N. T4 Chapter 3.2 Kepler's Laws Planet M has a larger orbital radius. According to Kepler's Third Law, a larger orbital radius results in a longer orbital period.
9 Diagram 8 shows a heating curve of a solid with a mass of 0.5 kg using a heating plate with a power of 48 W. Determine the specific heat capacity, c of the solid. flag bookmark A 12 J kg⁻¹ °C⁻¹ B 24 J kg⁻¹ °C⁻¹ C 720 J kg⁻¹ °C⁻¹ D 1440 J kg⁻¹ °C⁻¹ T4 Chapter 4.2 Specific Heat Capacity Use the first segment before melting: Pt = mcΔθ. Energy supplied = 48 × 300 = 14400 J. Δθ = 80 − 60 = 20 °C. So c = 14400 / (0.5 × 20) = 1440 J kg⁻¹ °C⁻¹.
10 Diagram 9 shows a pressure cooker used to reduce cooking time. Which gas law is involved in the situation? flag bookmark A Boyle's Law. B Charles' Law. C Gay-Lussac's Law. T4 Chapter 4.4 Gas Laws In a sealed volume, heating raises pressure, which raises the boiling point and shortens cooking time.