NEW
Font size
WorksheetsPhysics Challenge 4
Total questions: 40
Worksheet time: 7hrs 40mins
Diagram below shows an electric circuit used to investigate the relationship between the resistance and the length of a wire.
Which of the following is correct?
Diagram below shows two identical wooden blocks, R and S, paced on trolleys P and Q respectively.
What happens to the wooden blocks R and S when trolley P collides with the stationary trolley Q?
Which physical quantity is equal to
Speed
Velocity
Distance
Acceleration
Which graph shows the correct relationship between the force, F, and the extension, x, of a spring?
Diagram below shows a car.
The crumple zone is designed to
reduce the momentum
increase the impulsive force
lengthen the collision time
turn the kinetic energy into gravitational
potential energy
Diagram below shows a toy car of mass 4 kg. The car is pushed forward by a force of 10 N.
The frictional force between the toy car and the floor is 2 N.
What is the acceleration of the toy car?
2.0 m s-2
1.2 m s-2
2.5 m s-2
2.2 m s-2
Diagram below shows a wooden block and a weight connected by an inelastic string through a frictionless pulley.
When the weight is released, the energy change that happens in the system is
potential energy of the wooden block → kinetic energy of the weight
potential energy of the weight → kinetic energy of the wooden block
potential energy of the weight → kinetic energy of the wooden block and weight
potential energy of the weight and wooden block → kinetic energy of the wooden block
Diagram below shows a feather and a stone falling freely in a vacuum.
Which statement is correct about the motion?
The feather and the stone fall with constant velocity
The feather and the stone have the same kinetic energy
The feather and the stone reach the ground at the same time
The gravitational force acting on the feather and the stone are the same
Diagram below shows two divers in a lake and a diver in a sea.
The pressure of water at T, S and U is PT, PS and PU respectively.
Which of the following comparisons is correct about the pressure exerted on the divers?
PU> PT> PS
PU< PT< PS
PU= PT> PS
PU= PT< PS
Diagram below shows water spurting out from a container at different depths.
Which graph shows the correct relationship between the pressure exerted by the water, p and the depth of the water, h?
Diagram below shows a manometer connected to a balloon.
What is the pressure, PB, inside the balloon?
(ρ = density of mercury, g = gravitational acceleration, Patm= atmospheric pressure)
PB= hρg
PBPatm. hρg
PB= Patm+ hρg
Diagram below shows the shovel and the arm of a digger lifting a heavy load.
Which principle is used in the arm of the digger?
Pascal’s prinsiple
Bernoulli’s principle
Principle of equilibrium of forces
Principe of conservation of momentum
Diagram below shows an airship floating at a constant height.
The upthrust exerted on the airship is equal to
the mass of the airship
the weight of the airship
the density of the airship
the volume of air displaced by the airship
Diagram below shows an object with an aerofoil shape plced in a wind tunnel.
Which position, A,B, C or D, experiences the lowest pressure?
A
B
C
D
Diagram below shows two identical test tubes, P and Q, containing ball bearings X and Y. All the ball bearings have the same size but different densities.
The upthrust on test tube P and Q are FP and FQ, respectively.
Which comparision is correct?
FP= FQ
FP> FQ
FP< FQ
Diagram below shows the pressure-temperature graph for a fixed mass of gas at constant volume.
Which statement is correct about the condition of the gas?
The gas pressure is zero at 0°C
The gas molecules are stationary at -273°C
The kinetic energy of the molecules is maximum at -273°C
The gas pressure is inversely proportional to the temperature
Diagram A shows a dented ping-pong ball.
Diagram B shows the condition of the ball after being placed in hot water.
Which of the following is correct about the mass of the air and the kinetic energy of the air molecules inside the ping-pong hall when the ball is placed in hot water?
Diagram below shows a lead block, an iron block and an aluminium block. All the blocks have the same mass and heated with same amount of heat energy in 15 minutes. The specific heat capacity, c, of each metal is different.
Which statement is correct at the end of the 15 minutes?
The lead block has the lowest final
temperature
The aluminium block has the highest final
temperature
The final temperature of the iron block is
equal to the aluminium block
The final temperature of the lead block is
higher than the iron block
Diagram below shows a boy looking at the image of a letter ‘P’ in a mirror.
How far is the image from the boy?
3 M
4 M
6 M
7 M
Diagram below shows the appearance of the word PHYSICS as seen through a magnifying lens.
Which light phenomenon explains this situation?
Reflection
Refraction
Diffraction
Total internal reflection
Diagram below shows a ray of light propagating from air to water.
What is the refractive index of the water?
0.75
0.92
1.34
2.39
Diagram below shows a wave.
The speed of the wave is 4.0 m s-1. The distance of 5 consecutive crests is 8 m. What is the frequency of the wave?
0.4 Hz
0.5 Hz
2.0 Hz
2.5 Hz
Diagram below shows an object placed 20 cm in front of a concave mirror of focal length, f,10 cm.
What are the characteristics of the image formed?
Real, same size, inverted
Real, diminished, inverted
Virtual, same size, upright
Virtual, diminished, upright
Diagram below shows water waves passing through a gap.
Which phenomenon explains the propagation of the waves?
Reflection
Refraction
Difraction
Interference
Diagram below shows an interference pattern of water waves from two sources, S1and S2.
form of wave happens at point X from sources S1and S2?
Which physical quantity of a wave changes when the wave is reflected?
Speed
Frequency
Wavelength
Direction of wave propagation
Diagram below shows how the reflection of a sound wave is used to find the depth of a wrecked ship.
What is the depth of the wrecked ship if the reflected sound wave is detected 0.2 s later?
[Speed of sound wave in water = 1 530 m s-1
153 m
306 m
7 650 m
15 300 m
Which statement is correct about the properties of electromagnetic waves?
Electromagnetic waves are longitudinal
waves
Electromagnetic waves propagate at 300 m s-1
Electromagnetic waves undergo reflection,
refraction, diffraction and interference
Electromagnetic waves consist of an electric
field and a magnetic field oscillating parallel
to each other
Diagram shows a left hand which represents the Fleming Left-Hand Rule.
X represents the
motion
current
magnetic field
potential difference
Diagram below shows a voltage-current graph.
Which circuit is used to obtain this graph?
Diagram below shows a circuit with two different resistors, R1and R2. The current flows through R1is I1and through R2is I2.
Which comparision is correct?
I1= I2
I1< I2
I1> I2
A cell has an e.m.f of 1.5 V. When it is connected to an external resistor, the potential difference is 1.3 V and the currrent is 0.2 A.
What is the value of the internal resistance?
0.2 Ω
0.4 Ω
1.0 Ω
1.5 Ω
Diagram below shows the apparatus set-up to observe the magnetic field due to a current in a coil.
Which diagram shows the magnetic field correctly?
Diagram below shows an electronic symbol representing an electronic component.
What is the electronic component?
Diode
Inductor
Resistor
Transistor
Diagram below shows the beginning of a chain reaction.
A chain reaction takes place because
U is highly radioactive
the two nuclei Sr and Xe are still radioactive
the number of neutrons released is continuously multiplying as time increases
the energy released during the nuclear reaction is very high
When a sample of Radium-226 decays, the energy released is 7.81 × 10-13 J.
What is the mass defect?
8.68 × 10-30 kg
2.60 × 10-21 kg
3.84 × 1020kg
1.15 × 1029kg
If waves can behave like particles, then particles can behave like a wave. This is the idea behind...
Quantization of Energy
Photoelectric Effect
Compton Effect
deBroglie Waves
Uncertainty Principle
A ____ is a discrete, quantized bundle of energy
Photoelectric effect
Photon
Quantized
Proton
