Physics SPM 2025 Selangor 州试卷 Set 1 Kertas 1（40 题附答案）- Cerdek

1

Which of the following is a vector quantity?

A Power B Energy C Pressure D Momentum

2

Diagram 1 shows a graph of R against $\frac{1}{A}$. Which statement is correct?

A R is directly proportional to A B R is inversely proportional to $\frac{1}{A}$ C The unit of the gradient of the graph is Ω mm² D The gradient of the graph = $\dfrac{\text{change in R}}{\text{change in A}}$

3

Diagram 2 shows a motorcyclist riding up a hill with uniform deceleration. The motorcyclist then goes down the hill with uniform acceleration. Which graph correctly shows the relationship between velocity, $v$, and time, $t$, for the motion of the motorcycle?

A

B

C

D

4

Diagram 3 shows the state of a Newton's cradle after several balls are displaced and then released to collide with the other balls. Which statement is correct about the motion of the Newton's cradle?

A The total energy before and after the collision is different B The momentum before and after the collision is conserved C The difference in total momentum before and after the collision is zero D The total kinetic energy before the collision is greater than after the collision

5

Diagram 4 shows a satellite of mass 2600 kg orbiting the Earth at a distance of 705 km from the surface of the Earth. Using the formula $T^2 = \dfrac{4\pi^2 r^3}{GM}$, calculate the orbital period of the satellite. [Mass of the Earth = $5.97 \times 10^{24}$ kg; radius of the Earth = $6.37 \times 10^{3}$ km]

A $5.522 \times 10^{3}$ s B $5.925 \times 10^{3}$ s C $2.563 \times 10^{7}$ s D $3.049 \times 10^{7}$ s

6

Which of the following is true about the satellites used in the Global Positioning System (GPS)?

A The orbital period is 24 hours B They orbit the Earth in the same direction as the Earth's rotation C They are located in a lower orbit than the geostationary Earth orbit D They are always above the same geographical location on the Earth

7

A bowl of hot rice is left at room temperature. Thermal equilibrium is reached when

A the temperature of the rice decreases B the temperature of the surrounding air increases C there is no net heat transfer between the surrounding air and the rice D the amount of heat energy in the surrounding air and in the rice is the same

8

Diagram 5 shows the temperature-time graph of substance P with a mass of 0.025 kg heated using a 100 W heater. What is the specific latent heat of fusion of substance P?

A $1.6 \times 10^{5}$ J kg⁻¹ B $2.0 \times 10^{5}$ J kg⁻¹ C $3.2 \times 10^{5}$ J kg⁻¹ D $3.6 \times 10^{5}$ J kg⁻¹

9

A Kinetic energy increases, air pressure increases B Kinetic energy decreases, air pressure decreases C Kinetic energy increases, air pressure decreases D Kinetic energy decreases, air pressure increases

10

Diagram 7 shows a displacement-time graph of a wave. Which one shows the amplitude of the wave?

A A B B C C D D

Selangor Trial 2025 Physics Kertas 1 · Set 1

Selangor Trial 2025 Physics Kertas 1 · Set 1

Selangor Trial 2025 Physics Kertas 1 · Set 1

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