REVISION

REVISION

PAPER 1

Multiple Choice

Which unit is a derived unit?

• ampere

• meter

• kelvin

• joule

Multiple Choice

Which distribution of gunshots is consistent and accurate?

Multiple Choice

Which quantity is a scalar quantity?

• Force

• Energy

• Velocity

• Displacement

Multiple Choice

Diagram 1 shows the scale of a vernier calliper used to measure the external diameter of a test tube. What is the actual reading of the external diameter of the test tube?

• 5.54 cm

• 5.62 cm

• 5.64 cm

• 5.66 cm

Multiple Choice

Diagram 2 shows a ticker tape. Which statement is correct about the motion?

• The object decelerates

• The velocity of the object increases

• The object moves with a constant velocity

• The object decelerates ans then moves with constant velocity

Multiple Choice

Diagram 3 shows an experiment carried out to study the motion of an object. Which of the graph shows the correct displacement, s against time, t?

Multiple Choice

Which motion shows the biggest momentum?

Multiple Choice

Diagram 4 shows a man pulling a heavy box along a rough surface. Which combinations of forces, F₁ and F₂ will produce an acceleration of 1 m s^-2?

• F₁: 100 N

  F₂: 200N

• F₁: 200 N

  F₂: 400N

• F₁: 300 N

  F₂: 600N

• F₁: 400 N

  F₂: 800N

Multiple Choice

Diagram 5 shows a sicker displayed inside a public transportat as a regulation. Why should passengers abide this regulation?

• The impulse during an accident can be increased

• The inertia effect during an accident can be increased

• The time impact during an accident can be increased

• The impulsive force during an accident can be increased

Multiple Choice

Which situation needs a high impulsive force?

Multiple Choice

Diagram 6 shows the movement of an orange and a feather of different masses when dropped from the same height simultaneously in a vacuum tube. Both the orange and the feather reach the base simultaneously. Whici physics concept is involved?

• Gravitational accelration

• Inertia

• Momentum

• Impulsive force

Multiple Choice

Diagram 7 shows a hanging basket of orchids with strings on the wall and the ceiling. Which diagram shows the three forces, R, T, and W acting on the hanging basket?

Multiple Choice

Diagram 8 shows a ball is thrown from the edge of a cliff. In which position does the ball has maximum kinetic energy and minimum gravitational potential energy.

• Maximum kinetic energy: X

  MAximum gravitational potential energy: Y

• Maximum kinetic energy: Y

  MAximum gravitational potential energy: Z

• Maximum kinetic energy: Z

  MAximum gravitational potential energy: Y

• Maximum kinetic energy: Z

  MAximum gravitational potential energy: Z

Multiple Choice

Diagram 9 shows a fish in a lake. What is the total pressure exerted on the fish? [Atmospheric pressure = 10 m water]

• 3 m water

• 7 m water

• 10 m water

• 13 m water

Multiple Choice

Diagram 10 shows a girl holding a bunch of balloons The air pressure inside the balloons is

• equal to the atmospheric pressure

• smaller than the atmospheric pressure

• greater than the atmospheric pressure

Multiple Choice

Diagram 11 shows a ping pong ball hovering over a nozzle when air is passed through it. Which region A, B, C and D, experiences he lowest pressure?

• A

• B

• C

• D

Multiple Choice

Diagram 12 shows two identical toy ducks floating on the surface of different liquids X and Y. Which statement is correct?

• The density of liquid X = the density of liquid Y

• The buoyant force acting in liquid X = the buoyant force acting in liquid Y

• The density of liquid Y < the density of liquid Y

• The buoyant force acting in liquid X > the buoyant force acting in liquid Y

Multiple Choice

Diagram 13 shows an electrical iron. Which property is the most suitable for the iron sole plate?

• Low density

• Low energy consumption

• Low resistivity of electricity

• Low specific heat capacity

Multiple Choice

Diagram 14 shows 0.4 kg of water at a temperature of 30^oC is poured into a glass of ice at 0^oC. What is the mass of the ice that melts?

[Specific Latent Heat of ice = 3.36 x 10⁵ J kg^-1;

Specific Heat Capacity of water = 4200 J kg^{-1 o}C^-1]

• 0.05 kg

• 0.10 kg

• 0.15 kg

• 0.20 kg

Multiple Choice

An experiment is carried out to investigate the relationship between volume, V and temperature, T of a gas at constant pressure. Which graph shows the correct relationship?

Multiple Choice

Diagram 15.1 shows the initial position of a piston. Diagram 15.2 shows the final position of the pistion after being pulled to the right. The temperature of the gas remains constant. What changes in the density and the pressure of the gas?

• Density: Decreases

  Pressure: Decreases

• Density: Decreases

  Pressure: Unchanged

• Density: Increases

  Pressure: Decreases

• Density: Increases

  Pressure: Unchanged

Multiple Choice

Diagram 16 shows a side mirror of a car that uses a plane mirror/ Which characteristic of image is formed by the side of mirror?

• Magnified

• Real

• Smaller than the object

• Same size as the object

Multiple Choice

Table 1 shows three different mediums with their refractive indices. Which ray diagram is correct?

Multiple Choice

Diagram 17 shows parallel light rays passing through a concave lens. What happens to the focal length, f and its power if the thickness of the lens is decreased?

• Focal length, f: Decreases

  Power, P: Increases

• Focal length, f: Increases

  Power, P: Increases

• Focal length, f: Decreases

  Power, P: Decreases

• Focal length, f: Increases

  Power, P: Decreases

Multiple Choice

Daigram 18 shows the arrangement for an astronomical telescope at normal adjustment. If the power of the eyepiece lens is 20D, what is the linear magnification of the astronomical telescope?

• 1.5

• 2.0

• 2.5

• 4.0

Multiple Choice

Diagram 19 shows an oscillation of a pendulum bob at the highest position. Which physical quantity represents the displacement between G and H?

• Speed

• Frequancy

• Wavelength

• Amplitude

Multiple Choice

Diagram 20 shows an incident wave reflected by a plane reflector. Which comparison is correct?

• Speed of reflected waves < speed of incident waves

• Amplitude of reflected wave > Amplitude of incident wave

• Frequency of reflected wave < Frequency of incident wave

• Wavelength of reflected wave = wavelength of incident wave

Multiple Choice

Diagram 21 shows an ambulance. The sound of ambulance siren can e heard clearly at night due to refraction of sound. Which physical quantity remains unchanged in the phenomenon?

• Velocity

• Frequency

• Amplitude

• Wavelength

Multiple Choice

Diagram 22 shows waves travel from the ocean towards the beach. Which comparisons are correct about the velocity and the wavelength of water waves at point P and Q?

• vP = vQ ; $\lambda P=\lambda Q$

• vP < vQ ; $\lambda p<\lambda Q$

• vP > vQ ; $\lambda p>\lambda Q$

• vP < vQ ; $\lambda P=\lambda Q$

Multiple Choice

Diagram 23 shows the pattern seen when light passing through a razor blade. What is the wave phenomenon that occurs?

• Reflection

• Refraction

• Diffraction

• Interference

Multiple Choice

Diagram 24 shows the horns of a ship that emit sound that can be heard from afar. The sound is detected and shown on the screen of cathode ray oscilloscope (CRO). Which signal represents the sound?

Multiple Choice

Diagram 25 shows a communication satellite. What is the type of wave used in the communication satellite?

• Infrared

• Ultrasound

• Microwave

• Radio wave

Multiple Choice

Diagram 26.1 shows an apparatus set-up to show the pattern of an electric field. Diagram 26.2 shows the pattern of the electric field lines. What are the charges for X and Y?

• X: Negative

  Y: Positive

• X: Positive

  Y: Negative

• X: Positive

  Y: Positive

• X: Negative

  Y: Negative

Multiple Choice

Which circuit will produce the brightest bulb if all of the resistors are identical?

Multiple Choice

Diagram 27 shows an electric circuit. What is the reading of the ammeter when switch S is closed?

• 0.70 A

• 1.20 A

• 1.62 A

• 2.82 A

Multiple Choice

Diagram 28 shows the result obtained from an experiment to determine the electromotive force, E,and the internal resistance, r of a dry cell. Which of the following shows the correct values of E and r?

• Emf : P

  r : (P - Q) / R

• Emf : Q

  r : R / (P-Q)

• Emf : P

  r : P / Q

• Emf : Q

  r : -(Q - P) / R

Multiple Choice

Which graph shows the correct relationship between power, P and the voltage squared V² of a wire at constant resistance?

• A

• B

• C

• D

Multiple Choice

Diagram 29 shows two compasses, J and K to determine he direction of a magnetic field around a straight current-carrying conductor. When the switch is closed, What is the direction of compasses J and K?

• J: P

  K: R

• J: S

  K: P

• J: Q

  K: R

• J: S

  K: P

Multiple Choice

Diagram 30 shows the basic structure of a ceiling fan motor that uses an alternating current to rotate continuously in one direction. Which statement is correct?

• The turning effect of the motor is due to several coil wound around slots in a commutator that has many segments

• The magnitude of the alternating current flowing in the motor is massive

• The polarity of the electromagnet changes at the same frequency as the alternating current

• The continuous rotation is due to the existence of a permanent magnet inside he motor of the ceiling fan.

Multiple Choice

Daigram 31 shows a process to produce an induced current. Which action will not affect he magnitude of the induced current?

• Increase the speed of movement of the magnet

• Change the polarity of the magnet

• Reduce the rate of change of magnetic flux

• Increase the strength of the magnet

Multiple Choice

Leakage of magnetic field will reduce the efficiency of a transformer. Which action can reduce this problem?

• Using a thicker wire

• Using a soft iron core

• Winding the secondary and primary coils on top of each other

• Using the laminated core

Multiple Choice

Diagram 32 shows a National Grid Network for electricity ransmission. Which method can reduce the power loss during the transmission?

• Using a high resistivity cable

• Using a low density cable

• Using a high voltage

• Using a high current

Multiple Choice

Diagram 33 shows the path of a cathode ray in a deflection tube. Which direction the cathode ray is reflected when the EHT supply is switched on?

• P

• Q

• R

• S

Multiple Choice

Diagram 34 shows a transistor circuit, Which statement is correct about the transistor circuit?

• If E₂ power is reversed, the current through the milliammeter is still the same but in opposite direction.

• Increasing E₁ will give the same effect to the milliammeter as increasing E₂ with the same value.

• The type of transistor used in he circuit is pnp transistor

• No current flows through the miliammeter when E₁ is reversed

Multiple Choice

Diagram 35 shows the current flow through a transistor. What is the base current, I_B?

• 0.01 mA

• 0.02 mA

• 0.03 mA

• 0.04 mA

Multiple Choice

Diagram 36 shows the circuit representing a logic gate with inputs P and Q, and output R. Which Boolean Expression represents the output R?

• $R=\overline{P+Q}$

• $R=P+Q$

• $R=P\ \circ\ Q$

• $R=\overline{P\ \circ\ Q}$

Multiple Choice

The nuclide notation of X is as shown. If nuclide Y has 3 protons and 4 neutrons more than X, what is the nuclide notation for Y?

Multiple Choice

The equation shows the decay process of a uranium-238 sample. What is the values of X and Y?

• X: 3

  Y: 2

• X: 3

  Y: 3

• X: 6

  Y: 4

• X: 12

  Y: 6

Multiple Choice

Diagram 37 shows a robot holding a Geiger-Muller tube to detect radiation from a thick aluminium container. Which type of radiation can be detected?

• α - particles

• β - particles

• γ rays

• X-rays

Multiple Choice

The equation shows the decay pf uranium-235.

Mass of uranium-235 = 235.0439 u

Mass of thorium-231 = 231.0363 u

Mass of alpha particle = 4.0026 u

1 u = 1.66 x 10^-27 kg

What is the mass that is converted to energy?

• 5.0 x 10^-3 kg

• 7.5 x 10^-13 kg

• 7.9 x 10^-27 kg

• 8.3 x 10^-30 kg