1 Diagram 1 shows a thermometer. The degree Fahrenheit, °F is an example of flag bookmark A SI unit B metric unit C imperial unit D derived unit T4 Chapter 1.1 Physical Quantities The Fahrenheit scale is part of the imperial system of units, so it is correctly classified as an imperial unit.
2 Diagram 2 shows a graph of V against I. Which statement is **correct**? flag bookmark A V is increase linearly with I B Unit for the gradient of the graph is AV⁻¹ C The value of the gradient is given by 9/0.8 D V is manipulated variable, while I is responding variable T5 Chapter 3.2 Resistance From the graph, the straight line passes through the point (0.8 A, 9 V). The gradient is ΔV/ΔI, which is equal to 9/0.8.
3 Diagram 3 shows a ticker-tape strip of a trolley moving down an inclined runway. The ticker timer used produces 50 ticks in one second. What is the time taken for the trolley to move from R to S? flag bookmark A 0.02 s B 0.18 s C 0.20 s D 0.50 s T4 Chapter 2.1 Linear Motion One tick interval is 1/50 = 0.02 s. There are 9 intervals between R and S, giving 9 × 0.02 s = 0.18 s.
4 Diagram 4 shows a jeep moving up a hill. The jeep decelerates while going up the hill and accelerates while going down the hill. Which displacement-time graph describes the movement of the jeep? flag bookmark A B C D T4 Chapter 2.2 Linear Motion Graphs The curve's gradient decreases from D to E, indicating deceleration uphill, then becomes increasingly negative from E to F, indicating acceleration downhill.
5 Diagram 5 shows a toy is launched vertically upwards at a velocity of 10 m s⁻¹. What is the time taken for the toy to reach maximum height? flag bookmark A 0.981 s B 1.019 s C 5.097 s D 98.10 s T4 Chapter 2.3 Free Fall Motion At maximum height, velocity is zero. Using v = u − gt, 0 = 10 − 9.81t, so t = 10 ÷ 9.81 = 1.019 s.
6 Diagram 6 shows final position of two curling stones on the surface of an ice rink. A curling stone with a greater mass takes a longer distance to stop. The physical quantities involved to describe the following situation is flag bookmark A force B weight C inertia D momentum T4 Chapter 2.5 Momentum Greater mass means greater inertia, which is the tendency to resist changes in motion. Thus, a stone with more mass takes a longer distance to stop.
7 Diagram 7 shows a cloth of mass 0.18 kg fired from a cloth launcher gun of mass 3.5 kg. The velocity of the cloth, v, is 55 m s⁻¹. What is the recoil velocity of the cloth launcher gun after the cloth is fired from the gun? flag bookmark A 0.07 m s⁻¹ B 0.63 m s⁻¹ C 2.83 m s⁻¹ D 9.90 m s⁻¹ T4 Chapter 2.5 Momentum Using conservation of momentum, the recoil velocity is (0.18 × 55) / 3.5 = 2.83 m s⁻¹, so option C is correct.
8 Why are Formula 1 racing car bodies made of lightweight composite materials? flag bookmark A Produces a large inertia B Produces a large force C Momentum increases D Acceleration increases T4 Chapter 2.6 Force Lightweight materials reduce the car’s mass, so the same engine force produces greater acceleration, since acceleration = force ÷ mass. This is why D is correct.
9 Which of the following statements is **correct** about the gravitational field strength of the Earth? flag bookmark A Each 1 kg of mass will experience a gravitational force of 9.81 N B Each 10 kg of mass will experience a gravitational force of 9.81 N C An object with a mass of 1 kg will experience free fall with a velocity of 9.81 m s⁻¹ D An object with a mass of 10 kg will experience free fall with a velocity of 9.81 m s⁻¹ T4 Chapter 2.8 Weight Gravitational field strength 9.81 N/kg means every 1 kg of mass experiences a gravitational force of 9.81 N. Options C and D confuse acceleration with velocity.
10 Diagram 8 shows two soda cans falling from the same position on a table. It was found that the soda can that fell on the rock was dented while the soda can that fell on the towel remained unchanged in shape. Which statements is **correct**? flag bookmark A The impact time increases, the change of momentum decreases B Hard rock surfaces cause the impact time to increase C The change in momentum increases, so the impulsive force increases D The impact time decreases, so the impulsive force increases T4 Chapter 2.7 Impulse and Impulsive Force The change in momentum is the same for both cans. Falling on the hard rock shortens the impact time, which increases the impulsive force.