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Perak Trial 2025 Fizik Kertas 1

1
Which of the following is not a base quantity?
2
When an object is moving at a constant velocity, its acceleration will be
3
A student threw a ball upward with a velocity of 35 m s^{-1} as shown in Diagram 1. How long does it take for the ball to return to his hand?
4
Diagram 2 shows a boy being chased by a cow. The boy ran in a zigzag pattern because he knew that it was difficult for the cow to change the direction of its movement due to its large inertia compared to him. What causes the inertia of the cow to be bigger?
5
Diagram 3 shows a boy running and jumping on a stationary skateboard. Which of the following statement is correct about the above situation?
6
Diagram 4 shows a parachutist in four positions. Based on Newton's Law of Universal Gravitation, at which position does the gravitational force act on the parachutist?
7
The following is a conversation between a teacher and a student during a Physics class. > Student: Why does the Moon take shorter time to orbit the Earth than the Earth orbits the Sun? > Teacher: This is because the radius of orbit of the Moon is smaller than the radius of orbit of the Earth. The larger the radius of an orbit, the longer the orbital period. Which law supports the teacher's answer?
8
Earth has an orbital period of 365 days and its mean distance from the Sun is 1.495 x 10^8 km. The planet of Pluto's mean distance from the Sun is 5.896 x 10^9 km. What is the Pluto's orbital period?
9
Which of the following statement is correct about geostationary satellites?
10
What is the concept used in measuring the temperature of water using a thermometer?
11
The specific latent heat of vaporisation of water is the heat absorbed by
12
A gas of volume 20 m^3 at 37 °C is heated until its temperature becomes 87 °C at constant pressure. What is the increase in volume?
13
Diagram 6 shows the displacement-time graph. Based on the graph above, what is the frequency of the wave?
14
Diagram 7 shows an incident sound wave reflected from a concrete wall. Which of the following statement is correct about the above situation?
15
Diagram 8 shows the application of electromagnetic wave. Which pair shows the characteristics of the wave used?
16
Diagram 9 shows a light ray propagating from water to air. The refractive index of water is 1.33. What is the value of angle θ?
17
Which of the following equipment is the application of total internal reflection?
18
Which of the following is the characteristics of the objective lens for a telescope?
19
Which of the following are the characteristics of the image produced by a concave mirror? I Real, inverted, diminished II Real, inverted, same size as object III Virtual, inverted, magnified IV Virtual, upright, diminished
20
Which diagram shows the correct resultant force?
21
Diagram 10 shows a father pushing a baby stroller with a force, F of 100 N. What is the horizontal force, Fx and vertical force, Fy applied?
22
A lorry moves with a uniform velocity. Which of the following statement describes the situation?
23
Which of the following device is the application of atmospheric pressure?
24
Diagram 11 shows a hydraulic brake system of a vehicle. The cross-sectional area of small piston is 2.5 x 10^4 m^2. If the driver presses the brake pedal with force 100 N, calculate the pressure produced in the system.
25
An athlete with a mass of 60 kg is paddling a kayak. The mass of the kayak is 30 kg. The kayak is floating on the river water. The kayak has displaced a certain volume of river water while floating. Calculate the volume of river water displaced, V. [Density of river water, p = 1000 kg m^-3]
26
Diagram 12 shows a fine spray of water coming out when the sprayer is squeezed. Which of the following statement is true about the speed of air and air pressure at the nozzle?
27
Which diagram shows the correct electric field pattern?
28
Wire P and Q are made from the same material. A student connects wire P in a circuit. | Dawai | Panjang dawai (cm) | Luas keratan rentas dawai (mm^2) | |---|---|---| | Wire | Length of wire (cm) | Cross sectional area of wire (mm^2) | | P | 30 | 1 | | Q | 30 | 2 | What happen to the current when wire P is replaced with wire Q in the circuit?
29
Diagram 13 shows a single core wire with a length of 0.8 m. The wire has a resistivity of 1.7 \times 10^{-8} \Omega m and a diameter of 1.5 \times 10^{-3} m. What is the resistance of the wire? [\pi = 3.142]
30
Diagram 14.1 shows a circuit with one dry cell. Diagram 14.2 shows two dry cells arranged in parallel. State the change in the current flowing in the circuit in Diagram 14.2 compared to the circuit in Diagram 14.1.
31
What is the main function of Fleming's left-hand rule?
32
What is the law that explains the direction of induced current in solenoid?
33
What will happen if the transformer is connected to direct current?
34
Diagram 15 shows two diodes which are connected in parallel in a circuit. When the switch is closed, which bulb will light up?
35
Which of the following statement is correct about transistor?
36
Which of the following radioactive decay equation shows beta decay?
37
The tremendous energy released in a nuclear fission reaction is due to
38
Quantum physicist had confirmed the properties of light and electron through experiment. Choose the correct statements. I Light exhibits wave characteristics. II Light exhibits particle characteristics. III Electron exhibits wave characteristics. IV Electron exhibits particle characteristics.
39
In the experiment of photoelectric effect, one physical quantity, V_a can be obtained through V-intercept from the graph of I against V as shown in Diagram 16. What is represented by the physical quantity of V_a?
40
Diagram 17 shows a graph of maximum kinetic energy of photoelectron, K_max against the reciprocal of wavelength, \frac{1}{\lambda} of a photocell shone with red light. What happen to value of K_max when the value of \lambda decreases?
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