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WorksheetsPhysics Challenge 10
Total questions: 40
Worksheet time: 7hrs 40mins
Which is the unit for Impulse ?
Nkg-1
Nm
Nms-1
Ns
Which graph shows T2 is inversely proportional to k?
Diagram 2 shows Ahmad is pulling a box of mass 50 kg on a rough inclined surface.
The box moves with an acceleration 2 ms-2.
Which pair of forces is correct?
Diagram 3 shows Hafiz’s new car.
The car will have the largest momentum if Hafiz drives with speed of
80 kmh-1
120 kmh-1
150 kmh-1
200 kmh-1
Diagram 4 shows Anis is launching a ball using a slingshot.
Which method and characteristic of slingshot will cause the ball to move the furthest distance?
Diagram 5 shows a car moves with constant velocity.
The forces are balanced when
net force is zero
net force is equal
net force is equal to frictional force
net force is less than frictional force
Diagram 6 shows Pak Sani is pushing a horse-cart filled with load of mass 1000 kg. The horse is pulling the cart with force 500 N and Pak Sani is pushing the cart with force 200 N.
What is the work done when the horse-cart moves a distance of 8.0 m?
8.75 x 101Nm
2.40 x 103Nm
5.60 x 103Nm
8.00 x 103Nm
Diagram 7 shows a rice mortar is used to produce rice. The dried paddy was pound with pestle to separate the rice from the husk.
Which statement shows impulsive force is produced
the pestle is moved at high velocity.
the pestle is lifted at high level
the rice is separated from husk
the pestle hits the mortar
Diagram 8 shows a ball bounces upward when a force acted on a compressed spring is released.
Which pair of energy transformation and magnitude of energy is correct?
The pressure of liquid at the bottom of a jug depends on the following factors except
shape of the jug
depth of liquid
the density of liquid
gravitational field strength
Diagram 9 shows a 20 kg wooden box with dimension of 50 cm × 30 cm × 20 cm.
What is the maximum pressure that can be exerted on the floor by this wooden box?
0.03 N cm-2
0.13 N cm-2
0.20 N cm-2
0.33 N cm-2
Diagram 10 shows a barometer is used by Aizan to study the atmospheric pressure at a seaside. The length of h is 76 cm.
What happens to the value of h if Aizan were to bring the barometer to the peak of Gunung Tahan?
Equal to 0 cm
Equal to 76 cm
Larger than 76 cm
Smaller than 76 cm
Diagram 11 shows a hydraulic pump with identical cross-sectional areas of pistons X and Y
Which statement is correct?
The force, F is greater than the weight of load, W
he weight of load, W is greater than the force, F
The pressures exerted on pistons X and Y are equal
The pressure exerted on piston X is less than the pressure exerted on piston Y
Diagram 14 shows gas X trapped inside a U-tube. The length of mercury column is 14 cm.
What is the pressure of gas X?
[ Density of mercury = 13 600 kgm-3 ]
1.90 × 103Pa
1.90 × 104Pa
1.90 × 105Pa
1.90 × 106Pa
Diagram 15 shows two metal blocks touching each other.
Thermal equilibrium is reached when both of them have the same
mass
density
volume
temperature
Diagram 17 shows a 5.0 kg metal cylinder with specific heat capacity of 450 Jkg–1oC–1
is heated using a heater of power 1 kW. The heater is switched on for 10 seconds.
What is the rise in temperature of the cylinder?
0.23oC
0.44oC
4.44oC
5.00oC
Which graph shows the relationship between the volume, V, and the absolute temperature, T, for a fixed mass of gas at constant pressure?
Diagram 18 shows a marble at the base of a glass container. The image of the marble can only be seen when liquid is poured to a depth of 10 cm in the container.
the refractive index of liquid is 1.33, what is the distance of the image from the actual marble?
1.00 cm
2.48 cm
7.52 cm
13.33 cm
Diagram 19 shows a ray diagram of a convex lens.
The power of the convex lens is
+0.2 D
+5.0 D
+10.0 D
+20.0 D
Diagram 20 shows a light ray, P is directed to the centre, O of semicircular glass block. Refractive index of the glass is 1.57.
At which direction A, B, C or D does the light propagate after point O?
A
B
C
D
Diagram 21 shows a light ray is directed towards a set of mirrors.How many times will the ray be reflected?
1
2
3
Diagram 22 shows Azli is standing in front of a plane mirror at a distance of 5 m.
What is the distance that Azli has to walk so that the distance between Azli and his image is 3 m.
1.0 m
1.5 m
2.0 m
3.5 m
Diagram24 shows an image of a coin observed by using a magnifying glass with a focal length, f.
At which position A, B, Cor D,the coin should be placed the coin so that the image formed is virtual, upright, magnified?
A
B
C
D
Diagrams 25 show a waveform of sound waves from a piano. Which statements is true?
P has a higher pitch than Q
R is louder than Q
R has the highest pitch
P has the highest loudness
What is the common characteristic of all electromagnetic-waves?
Same frequency
Same wavelength
Requires medium for propagation
Propagates with the same velocity in vacuum
Diagram 26 shows a path of light ray passing through a convex lens.
Which refracted ray is correct?
P
Q
R
S
When a system is forced to oscillate at a frequency equivalent to its natural frequency by an external force. This phenomenon is called
damping
resonance
real oscillation
Diagram 27 shows a voltage-current graph.
Which circuit is used to obtain this graph?
Diagram 28 shows a series and a parallel circuits.
Which statement is correct about the circuits?
The total voltage in the series circuit is greater than the total voltage in the parallel circuit.
The total current flow in the series circuit is higher than the total current flow in the parallel circuit.
The effective resistance of the series circuit is bigger than the effective resistance of the parallel circuit.
The brightness of the bulbs in the series circuit is larger than the brightness of the bulbs in the parallel circuit
Which graph shows the relationship between the power, P and the square of the voltage, V2of a wire with constant resistance?
Diagram 29 shows an electric circuit.
The reading of the ammeter is
0.75 A
1.33 A
1.50 A
3.00 A
Which magnetic field produced by a straight current-carrying conductor is correct?
Diagram 33 shows two coils, P and Q. Coil P is connected to a circuit consist of a battery, a switch, and a resistor. Coil Q lies in the same plane as coil P.
What is the direction of the induced current in coil Q when the switch is closed?
Clockwise.
Counter-clockwise.
There is no induced current in coil Q
The induced current changes its direction from clockwise to counter-clockwise.
The following circuit diagrams show four diodes connected to an a.c power supply.
Which circuit will make the bulb lights up the brightest?
Which circuit will not light up the bulb?
Diagram 37 shows the emission of alpha, beta and gamma rays in a magnetic field.
What do P, Q and R represent?
In a nuclear fission, the mass defect is 0.05 a.m.u.
What is the nuclear energy produced?
[Given 1 a.m.u. = 1.66 x 10-27 kg , and c = 3.0 x 108m s-1]
7.47 x 10-12J
4.50 x 10-19J
8.31 x 10-20J
9.06 x 10-27J
A monochromatic light beam with a quantum energy of 9.0 eV is incident upon a photocell. The work function of the photocell is 4.1 eV. What is the maximum kinetic energy of the electron.
4.2 eV
4.4 eV
4.7 eV
4.9 eV
A metal surface is struck with light of λ = 400 nm, releasing a stream of electrons. If the 400 nm light is replaced by λ= 300 nm light of the same intensity, what is the result?
More electrons are emitted in a given time interval
Fewer electrons are emitted in a given time interval
Emitted electrons are more energetic
Emitted electrons are less energetic
