PAPER 1 PERLIS, KEDAH, MRSM TRIAL SPM 2018

The speed of sound in liquid is 1.5 x 10⁶ mms^-1. What is the speed in ms^-1?

Laju cahaya dalam cecair ialah 1.5 x 10⁶ mms^-1. Berapakah laju ini dalam ms^-1?

• 1.5 X 10³

• 1.5 X 10⁴

• 1.5 X 10^-3

• 1.5 X 10^-4

The power generated by a power station is 45 MW. What is the power in standard form?

Kuasa yang dijanakan oleh sebuah stesen janakuasa ialah 45 MW. Berapakah kuasa ini dalam bentuk piawai?

• 4.5 X 10⁶

• 4.5 X 10⁷

• 45 X 10⁶

• 45 X 10⁷

Table 1 shows the reading of internal diameter, d, and the thickness, l, of a cup in Diagram 1 measured by a student.

What is the measuring instrument used by the student?

• Vernier calipers

• meter rule

• measuring tape

• micrometer screw gauge

Which graph shows that V increasing linearly with θ?

Graf manakah yang menunjukkan V bertambah secara linear dengan θ?

• 
• 
• 
• 

Which statement is true?

Pernyataan manakah yang benar?

• The toy car is at rest from P to Q

• The toy car moves with uniform velocity from Q to R

• The to car moves with uniform acceleration from Q to R

• The toy car moves with increasing velocity from R to S

Diagram 3 shows a simple water rocket. When the rocket is released from its launcher, water jet is expelled from the nozzle with high velocity.

Which statement is true?

• Total initial momentum bigger than 0 kg m s^-1

• Total momentum after launching is equal to total momentum before launching

• Total momentum before launching is half of the total momentum after launching

• Total momentum after launching is half of the total momentum before launching

Diagram 4 shows an object of mass 10 kg is pulled by force F₁ on an inclined plane with a frictional force F₂.

• F₁ = 120 N

  F₂ = 50 N

• F₁ = 100 N

  F₂ = 50 N

• F₁ = 60 N

  F₂ = 50 N

• F₁ = 50 N

  F₂ = 50 N

Diagram 5 shows a leg of a motorcyclist which was injured during illegal racing undergoes a physical treatment in the hospital.

What is total upward force, F exerted on the leg? Ignore the friction force and mass of the pulleys.

• 15 N

• 30 N

• 40 N

• 56 N

Diagram 6.1 shows a high jump athlete experiences force F₁ in time t₁ when he falls on the mattress. Diagram 6.2 shows a golfer hit the golf ball with force F₂ in time t₂.

Which statement is correct?

• t₁ = Longer

  F₁ = Smaller

  t₂ = Longer

  F₂ = Bigger

• t₁ = Shorter

  F₁ = Bigger

  t₂ = Shorter

  F₂ = Bigger

• t₁ = Longer

  F₁ = Smaller

  t₂ = Longer

  F₂ = Smaller

• t₁ = Longer

  F₁ = Bigger

  t₂ = Shorter

  F₂ = Bigger

Diagram 7 shows a shoe of weight, W, is placed on an inclined plane at an angle of θ to the horizontal. The area of the sole of shoe is A. R is the normal reaction and F is the frictional force.

What is the pressure exerted on the inclined plane?

• W cos Ɵ

  A

• W sin Ɵ

  A

• W

  A

• F

  A