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WorksheetsPhysics Challenge 3
Total questions: 40
Worksheet time: 7hrs 40mins
Which quantity is a vector quantity?
Area
Length
Distance
Displacement
Diagram below shows a velocity-time graph for a motion of an object.
What is the total distance, in m, travelled by the object in 8 s?
18
24
32
64
Diagram below shows the position of a plate before and after the table cloth is snatched away.
The plate remains stationary due to
inertia
impulse
momentum
linear motion
Diagram below shows a coconut falling from a tree.
Which graph shows the relationship between the gravitational force, F, acting on the coconut and the mass, m, of the coconut?
Which statement is correct about the earth gravitational force?
Not all objects on the earth are influenced by the earth gravitational force
The earth gravitational force is stronger when an object is further away from the centre of the earth
The acceleration of all falling objects is influenced by the earth gravitational force
The earth gravitational force that acts towards the centre of the earth is uniform
Which diagram shows forces in equilibrium?
Which graph represents Hooke’s Law?
Diagram below shows a container filled with water.
Which is the correct comparison of the pressures at P and Q?
Pressure at P > pressure at Q
Pressure at P = pressure at Q
Pressure at P < pressure at Q
Diagram below shows a mercury barometer.
Which change increases the height, h, of the mercury?
Add more mercury in the container
Place the barometer at the seaside
Place the barometer below sea-level
Place the barometer to the top of a mountain
What happens to the gas molecules in a balloon at room temperature when the balloon is placed inside a freezer?
The kinetic energy of the gas molecules decreases
The potential energy of the gas molecules increases
The distance between the gas molecules increases
The size of the gas molecules decreases
Diagram below shows a simple hydraulic system in equilibrium.
A1, A2 and A3 are the areas of the piston.
F1, F2 and F3 are the forces which act on the piston.
Which comparison is correct?
Pressure at A1= pressure at A2= pressure at
A3
Pressure at A1< pressure at A2< pressure
at A3
Pressure at A1> pressure at A2> pressure
at A3
Pressure at A1> pressure at A2= pressure at
A3
Diagram below shows a wooden block floating on water.
Which statement explains this situation?
The weight of the wooden block < the upthrust
The weight of the wooden block = the upthrust
The weight of the wooden block > the upthrust
Diagram below shows a cup of hot coffee.
What happens when the coffee and the cup are in thermal equilibrium?
The temperature of the cup is increasing
The temperature of the coffee is decreasing
There is no net heat flow from the coffee to the cup
There is a net heat flow from the coffee to the cup
The specific heat capacity of aluminium is 900 J kg-1°C-1.
Which statement explains the specific heat capacity of aluminium correctly?
1 kg of aluminium absorbs 900 J of heat energy during heating
The temperature of 1 kg of aluminium will rise by 1 °C when it absorbs 900 J of heat energy
The temperature of 1 kg of aluminium will drop by 1 °C when it absorbs 900 J of heat energy
Aluminium requires 900 J of heat energy to increase its temperature by 1 °C
Diagram below shows the heating curve of a sample of naphthalene.
Naphthalene starts to melt at the time
t0
t1
t2
t3
Diagram below shows a syringe connected to a Bourdon gauge.
The readings on the Bourdon gauge before and after the piston is pushed in are shown below.
Which of the following explains this situation?
Boyle’s Law
Charle’s Law
Pascal’s principle
Bernoulli’s principle
Diagram below shows the apparatus used to investigate the relationship between the length, l, and the temperature, T, of the trapped air.
Which graph represents the relationship between l and T?
Diagram below shows the positions of a man, a flower pot and a plane mirror.
What is the distance, in m, between the flower pot and the image of the man?
1
4
6
7
Diagram below shows the apparent position of a fish as seen by an observer standing by a lake.
At which point, A, B, Cor D, is the actual position of the fish?
A
B
C
D
The velocity of light in air is 3.0 × 108m s-1.
What is the velocity of light in a glass block of refractive index 1.60?
5.6 × 10-10 m s-1
5.3 × 10-9m s-1
4.8 × 108m s-1
1.9 × 108m s-1
The critical angle of a type of coloured liquid is 48°.
Which diagram shows the total internal reflection?
Which ray diagram is correct for a convex lens?
Which diagram shows the production of a longitudinal wave?
Diagram below shows a sound wave reflected from a concrete wall.
Which comparison is correct about the reflected sound wave and the incident sound wave?
The wavelength of the incident wave is shorter than the reflected wave
The speed of the incident wave and the reflected wave is the same
The frequency of the incident wave is less than the reflected wave
The angle of incidence of the incident wave is greater than the angle of reflection of the reflected wave
Diagram below shows water waves propagating through a perspex block in a ripple tank.
Which wave pattern is observed when the waves pass through the perspex block?
Diagram below shows a stretched steel wire which produces a loud sound when the wire is plucked.
A loud sound means
a high speed
a large amplitude
a high frequency
a large wavelength
Which is the correct arrangement of electromagnetic waves in order of increasing frequency?
Infrared rays, Microwaves, Gamma rays,
Ultraviolet rays
Gamma rays, Ultraviolet rays, Infrared rays,
Microwaves
Microwaves, Infrared rays, Ultraviolet rays,
Gamma rays
Ultraviolet rays, Gamma rays, Microwaves,
Infrared rays
Which of the following is an ohmic conductor?
Thermistor
Bulb filament
Constantan wire
Vacuum diode
What is the meaning of 60 W?
The rate of change of power is 60 W
The rate of change of energy is 60 W
The rate of change of voltage is 60 W
The rate of change of current is 60 W
Diagram below shows an electrical circuit.
Which changes to the wire will produce the greatest reading on the ammeter?
Diagram below shows an electrical circuit.
The voltmeter reading is 8 V.
What is the value of the current flowing through the resistor R
2.0A
3.0A
4.0A
5.0A
Diagram below shows four identical compasses placed around a conductor.
The switch is switched on and current passes through the conductor.
In which direction do the compasses P, Q, R and S show the direction of the magnetic field?
A
B
C
D
Diagram below shows an electric motor.
The magnitude of force F increases when
the number of turns of the wire coil decreases
the magnitude of the electric current decreases
the magnitude of the magnetic field decreases
the resistance of the wire coil decreases
Diagram below shows a conductor placed between two magnets.
Which action produces an induced e.m.f. in the conductor?
Moving the conductor along WV
Moving the conductor along PQ
Moving the conductor along XY
Moving the conductor and the magnet
together along PQ
What is the type of copper wire used and the function of the laminated soft iron core in a transformer?
Diagram below shows a full wave rectifier circuit.
The output wave form is smoothen because
the resistant of the resistor is always increasing
and decreasing
the charges in the capacitor is always
increasing and decreasing
the number of electrons in the CRO is always
increasing and decreasing
the current flows through the diode is always
increasing and decreasing
Diagram below shows a p-n junction diode.
When the diode is in reverse biased, the depletion layer widens because
the electrons and holes are pulled away from
the p-n junction
the electrons from the n-type are pulled across
the p-n junction
the negative charges flow from the negative
terminal to the p-type semiconductor
the positive charges flow from the positive
terminal to the n-type semiconductor
Which diagram shows the structure of the atom and the composition of its nucleus?
The initial mass of polonium is 10 g and its halflife is 138 days.
Which graph shows the decay curve of polonium?
A large amount of energy is released when two light nuclei combine to form a heavy nucleus.
What is the name of this process?
Chain reaction
Nuclear reaction
Nuclear fission
Nuclear fusion
