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WorksheetsPhysics Challenge 6
Total questions: 40
Worksheet time: 7hrs 40mins
Which value is equal to 3 500 000 W?
3.5 kW
3.5 MW
35 kW
35 MW
The diagram below shows a stationary object when forces F1, F2, F3 and F4 are applied.
Which statement is correct?
F1 > F2
F1 < F2
F3 = F4
F4 > F3
Which phenomenon shows the effect of inertia?
The diagram below shows Ali stands at O. He walks towards A, then moves towards B and stops at B.
What is the displacement of Ali?
2 m towards west
5 m towards east
7 m towards east
The diagram below shows two trolleys before and after collision.
What is the velocity of both trolleys after collision?
0.60 m s–1
0.83 m s–1
1.20 m s–1
2.00 m s–1
The diagram below shows a velocity-time graph of a bus with passengers on board.
After 10 minutes, the driver steps on the brake pedal to stop the bus.
What is the velocity of the passengers immediately after the brake is applied?
0 m s–1
2 m s–1
6 m s–1
72 m s–1
Which tape shows a movement with uniform velocity and then deceleration?
The diagram below shows a boy sucking an empty packet drink.
Which statement describes this situation?
Pressure inside the drink packet < the atmospheric pressure
Pressure inside the drink packet > the atmospheric pressure
Pressure inside the drink packet = the atmospheric pressure
The diagram below shows two divers. The mass of both divers are assumed to be the same.
The diver in position N experiences greater pressure than the diver in position M because
the weight of diver at position N is greater than the weight of diver at position M
the depth of water at N is greater than the depth of water at M
the density of water at N is higher than the density of water at M
the bouyant force acting on diver N is greater than the bouyant force acting on diver M
The diagram below shows a boy blowing over a glass rod.
Which principle explains the situation?
Pascal’s principle
Bernoulli’s principle
Archimedes’ principle
Principle of conservation of momentum
The diagram below shows three similar balls, X, Y and Z fully immersed in olive oil, glycerine and turpentine respectively. The depth of each ball is the same. The types of thread and weight used are also the same.
Which ball experiences the lowest pressure?
X
Y
Z
The diagram below shows a cross-sectional of a hydraulic jack. The weight of a car is 2.0 × 106 kg and the ratio between the surface areas of the master piston to the slave piston is 1 : 15.
What is the force exerted on the master piston?
1.3 × 106 N
1.3 × 107 N
3.0 × 106 N
3.0 × 107 N
The diagram below shows a manometer being connected to a gas X supply.
Atmospheric pressure is 76 cm Hg.
What is the pressure of gas X?
76 cm Hg
80 cm Hg
84 cm Hg
88 cm Hg
At 27°C, a balloon used in a weather forecast has a pressure of 100 kPa. As the balloon reaches a certain altitude, the pressure decreases to 90 kPa.
What is the temperature at the altitude?
–3.0°C
3.0°C
24.3°C
60.3°C
A cake is placed in a hot oven. The temperature of the cake is the same as that of the oven after several minutes.
Which concept explains the situation?
Specific latent heat of vaporisation
Specific latent heat of fusion
Specific heat capacity
Thermal equilibrium
How much heat is needed to be supplied to change 500 g of ice block at 0°C to water at 0°C?
[Specific latent heat of fusion = 3.36 × 105 J kg–1]
6.72 × 102 J
1.68 × 105 J
6.72 × 105 J
1.68 × 108 J
At night, land cools down faster than sea. Which statement explains the situation?
Solid releases heat faster than liquid
Sea absorbs heat more than land during night
The breeze blows from the sea to the land during night
Specific heat capacity of sea water is greater than land
The diagram below shows an object in front of a plane mirror.
At which position A, B, C or D is the image formed?
A
B
C
D
Which instrument uses the concept of total internal reflection?
Microscope
Magnifying glass
Prism binocular
Astronomical telescope
The diagram below shows a light ray propagating from water to air. The refractive index of water is 1.33.
What is the angle of refraction?
22.1°
41.7°
48.8°
60.0°
The diagram below shows an object in front of a convex lens.
What is the image distance?
15 cm
20 cm
25 cm
30 cm
Which diagram shows the correct refraction of light ray after passing through a lens?
The diagram below shows an electromagnetic spectrum.
What are P, Q and R?
The diagram below shows a displacement-distance graph of a transverse wave.
What is the amplitude and wavelength of the wave, in cm?
The diagram below shows two identical tuning forks, X and Y, which are placed side by side. Tuning fork X is struck to vibrate. Tuning fork Y then vibrates too.
This effect is known as
pitch
damping
resonance
oscillation
Diagram below shows the apparatus set-up of Young’s double slit experiment. The wavelength of the monochromatic light is 6.5 × 10–7 m. The distance between the two slits is 0.5 × 10–3 m and the distance between the double slit and the screen is 3 m.
What is the distance between two bright fringes?
3.9 × 10–3 m
7.8 × 10–3 m
1.1 × 10–10 m
1.6 × 10–10 m
The diagram below shows the refraction pattern of water wave from P to Q.
Which pair is correct about the characteristics of water wave in Q?
An electric motor device has the input energy of 200 J and output energy of 180 J.
Which statement is correct?
The amount of electrical energy converted into heat energy is 2.0 J when a current of 0.4 A flows through a wire for 10 seconds.
What is the potential difference across the wire?
0.5 V
0.8 V
4.0 V
8.0 V
The diagram below shows a straight conductor placed in a magnetic field. Both of the soft springs extend when the switch is on.
Which change will decrease the extension of the springs?
Use a stronger magnet
Use a thicker conductor
Increase the number of batteries
Increase the distance between magnets
The diagram below shows a wire QR hangs freely between two strong magnets.
The angle of deflection, θ is increased by
increasing the current
changing the polarity of the magnet
increasing the resistance of the wire QR
increasing the distance between the poles of the magnet
The diagram below shows an electric generator.
Which graph shows the correct output between voltage and time when the coil starts to rotate?
The diagram below shows a transistor circuit.
What is the reading of V2 when V1 is 1.5 V?
1.5 V
4.5 V
6.0 V
7.5 V
The diagram below shows a circuit for the rectification of an alternating current.
Which is the correct trace on the screen of the CRO?
The activity of sample X becomes 6.25% of its original value after 120 minutes.
What is its half-life?
30 minutes
40 minutes
60 minutes
120 minutes
The following equation shows a decay process of radium-226. The mass defect is 0.005229 u.
What is the energy released?
[1u = 1.66 × 10–27 kg, c = 3.00 × 108 m s–1]
2.60 × 10–21 J
7.81 × 10–13 J
1.57 × 106 J
4.77 × 1014 J
The diagram below shows three resistors, P, Q and R connected in a circuit.
Which is the correct type of circuit arrangement for the resistors?
