WorksheetsPhysics Quiz
Total questions: 40
Worksheet time: 23mins
The periodic time of a simple pendulum can be increased by
increasing the length oft he cord
decreasing the length of the cord
increasing the mass of the bob
decreasing the amplitude of oscillation
2 µm means
2 x l0 6 rn
2 x 103 rn
2 x 10-6 m
2 x 10-3 m
A falling raindrop reaches a constant speed when
there is no net force acting on it
the pull of the earth on the raindrop is equal to the weight of the raindrop
the upthrust due to the air is at a
minimum
the air surrounding the raindrop becomes saturated with water vapour
Which of the following measurements has THREE SIGNIFICANT figures?
0.0293 kg
0.94 A
5.321 v
10.42 m
A stable well designed racing car must have a
low centre of gravity
narrow wheel base
sunroof
long front
"When body A exerts a force on body B, body B exerts an equal and opposite force on body A. " This principle is attributable to which of the following scientists?
Aristotle
Einstein
Galilee
Newton
If the resultant force on an object is zero, the object will move with
decreasing velocity
constant velocity
constant acceleration
increasing velocity
Two smooth spheres, A and B, coIIide head on. Which of the following statements is/are true?
I. The momentum of A is the same after collision as it was before.
II. The momentum of B is the same after collision as it was before.
III. The total momentum of A and B is
the same after collision as it was be tore.
I only
Ill only
ll and lll only
I, II and Ill
Which of the following is a scalar quantity?
Energy
Acceleration
Velocity
Weight
A ball attached to a string is whirled round at a constant speed in a horizontal circle. It is true to say that
the velocity is constant
there are no forces acting on the body
the motion is accelerated
if the string breaks the ball drops vertically downwards
Item 11 refers to the following diagram which shows two resistors, R1 of 6.0 Ω and R2 of 4.0 Ω, in a parallel.
What is the current through R1 if the current through R2 is 1.8 A as recommended?
1.2 A
1.8 A
2.7 A
3.0 A
The figure above shows a cell E, a diode P, and a resistor R, connected in series.
Which of the following graphs BEST illustrates the current through R?
An object is removed from the ground and placed on a shelf. Which of its properties would you expect to change?
Mass
Volume
Kinetic energy
Potential energy
Coal is sometimes burnt in order to drive steam engines. Which of the following is the sequence of energy changes involved in this activity?
Chemical→ kinetic →electrical
Chemical→ heat→ kinetic
Kinetic→ electrical→ chemical
Chernical →kinetic→heat
Which of the following implements is/are designed to take advantage of a large moment provided by a relatively small force?
I. Claw hammer
II. Crowbar
Ill. Pair of tweezers
IV. Pair of wire cutters
Ill only
l and IV only
I, II and Ill only
I, 11 and lV only
What is the gain in gravitational potential energy of a body of weight 2OOO N as it rises from a height of 20 m to a height of 25 m above the earth's surface?
400 J
1000 J
10000 J
20000 J
A balloon when filled with hydrogen gas and released will accelerate upwards. The balloon must therefore have displaced a weight of air
less than its own weight
equal to its own weight
greater than its own weight
equal to the weight of the basket and fabric only
A light bulb is filled with a gas at a temperature of 293 K. If the initial pressure of the gas is P, what will it be when the temperature increases to 360 K?
360293×P
293360×P
360293×P1
293360×P1
Which of the following would explain why an ordinary 0-110 °C laboratory thermometers not used to measure human body temperature?
I. The reading would change when the thermometer is taken from the patient's mouth.
II. It is not sensitive enough to measure small changes in temperature.
Ill. It does not have a large enough range.
I only
I and II only
II and Ill only
I, II and III
Which of the following statements about heat radiation is NOT true?
Radiation is the transfer of heat by electromagnetic waves.
A shiny surface is a better emitter of radiation than a dull black surface.
Radiation can occur through a vacuum.
Solar heat panels on houses are painted black to absorb more thermal radiation.
The graph above, arising from an experiment on change of phase, shows that solidification started at Q.
During which of the stages is the substance in the liquid phase?
At P only
Between Q and R
Between R and S
Between P and Q
A ray of light, LM, is incident on one side of a glass prism as shown in the diagram above.
The light emerges on the other side along the path
AW
AX
BY
BZ
Which of the following diagrams MOST clearly shows the path of a ray of light when it strikes a plane mirror?
Which of the following does NOT apply to sound waves?
They can travel fast in a vacuum.
They can be diffracted.
They transmit energy.
They are propagated by a series of compressions and rarefractions.
Which of the following would be true of the image of an object placed at the bottom of a tank of water and viewed vertically from above?
I. It is virtual.
II. lt is diminished.
lll. It is nearer to the eye than the object.
IV only
I and Il only
I and III only
II and III only
The atom of an element 73 Li has
3 protons,4 neutrons, 3 electrons
4 protons, 3 neutrons, 7 electrons
4 protons, 3 neutrons, 3 electrons
3 protons,4 neutrons, 7 electrons
Which of the following electromagnetic radiations is produced only by a change in a nucleus?
ultra-violet radiation
Infra-red radiation
Gamma radiation
Radio-waves
An alpha particle is
a high speed electron
a positive electron
high frequency electromagnetic radiation
a helium nucleus
An electromagnet consists of insulated wire wrapped around an iron core. lt works because
iron is a good electrical conductor
a magnetic field is produced inside the coil
an electric field is produced inside the coil
iron is always magnetised
The diagrams above show the magnetic field lines plotted by a student.
Which of the following are correct?
I and II only
l and lll only
II and III only
I. Il and III only
The diagram above shows the thermostat in an electric oven.
Brass expands more than iron when heated. To cut off the current at a higher temperature it would be necessary to
adjust the screw so that it is higher than shown
adjust the screw so that it is lower than shown
raise the bimetallic strip
increase the current in the heater circuit
In the diagram above, a piece of rubber magnet from a refrigerator is surrounded by plotting compasses.
The rubber magnet has
poles at the ends
poles at the centre
poles at the sides
no poles
The diagram above shows a simple force (F)/ extension ( w) graph for a light spring.
Which of the following statements would be true?
I. The elastic limit of the spring was exceeded.
II. The spring obeyed Hooke's law over its entire extension.
III. The force per unit extension in the elastic region was 7.5 N cm·1.
I only
I and III only
II and III only
I, II and lll
The following graph shows the journey made by a motorist.
When is the velocity constant?
Between 0 and K
Between K and L
Between I. and M
Between 0 and M
Which of the following is true of evaporation?
It occurs throughout the liquid at definite temperature.
It occurs at the surface of the Iiquid at no definite temperature.
It occurs at the surface of the liquid at a definite temperature
It occurs throughout the liquid at a definite temperature.
Which of the following statements about waves is NOT correct?
The amplitude is the distance between maximum and minimum displacements.
The wavelength is the distance the wave travels in one cycle.
The period is the time taken to go through one cycle.
The frequency of a wave is the number of cycles it describes in one second.
In an experiment designed to investigate the relationship between the volume and pressure of a gas at constant temperature, the pressure is increased step by step. Before reading the new volume of the gas after each pressure increase, it is advisable to wait a minute or two to allow
the pressure to equalize throughout the gas
the volume change to be completed
for changes in atmospheric pressure
the temperature of the gas to return to room temperature
When smoke in a cell is viewed with bright illumination under a microscope, bright specks are seen moving in an irregular jerky manner. The MAIN conclusion that we can draw from this observation is that
smoke particles move when illuminated
air molecules are moving about randomly
air molecules can he seen under a microscope
smoke particles have more energy than air molecule
If sounds of differing frequencies are played on a piano. in which of the following would a change be detected?
Loudness
Speed
Pitch
Wavelength
A normal human ear can detect frequencies in a range of about
10 Hz to 20 Hz
10 Hz to 100 Hz
20 Hz to 20 kHz
20 Hz to 100 kHz
