CAMBRIDGE SIMULATION AS LEVEL

CAMBRIDGE SIMULATION

AS LEVEL

Which pair contains one vector and one scalar quantity?

A displacement : acceleration  B force : kinetic energy

C momentum : velocity  D power : speed

The notation s is used as an abbreviation for a certain unit of time. What is the name and value of this unit?

What is the reading shown on this milliammeter

A 2.35 mA   B 2.7 mA C 3.4 mA   D 3.7 mA

The following trace is seen on the screen of a cathode-ray oscilloscope.

The setting of the time base is then changed from 10 ms cm to 20 ms cm and the Y-sensitivity is unaltered.

Which trace is now seen on the screen?

In a simple electrical circuit, the current in a resistor is measured as (2.50 ± 0.05) mA. The resistor is marked as having a value of 4.7 ± 2 %. If these values were used to calculate the power dissipated in the resistor, what would be the percentage uncertainty in the value obtained?

A B C D

A student measures a current as 0.5 A. Which of the following correctly expresses this result?

A 50 mA B 50 MA   C 500 mA D 500MA

A thermometer can be read to an accuracy of ±0.5 °C. This thermometer is used to measure a temperature rise from 40 °C to 100 °C. What is the percentage uncertainty in the measurement of the temperature rise?

A B C D

The time-base on a cathode-ray oscilloscope is set at 6ms / cm. A trace consisting of two pulses is recorded as shown in the diagram

What is the time interval between the two pulses?

A 0.42 ms B 0.75 ms   C 1.33 ms   D 27 ms

A student carries out a series of determinations of the acceleration of free fall g. The table shows the results.

g/ms 4.89 4.88 4.90 4.93 4.92

What can be said about this experiment?

A It is accurate and precise.  B It is accurate but not precise.

C It is not accurate and not precise.  D It is not accurate but is precise.

A particle is moving in a straight line with uniform acceleration. Which graph represents the motion of the particle?

A quantity X is measured many times. A graph is plotted showing the number n of times a particular value of X is obtained. X has a true value X 0. Which graph could be obtained if the measurement of X has a large systematic error but a small random error?

A tennis ball is released from rest at the top of a tall building. Which graph best represents the variation with time t of the acceleration a of the ball as it falls, assuming that the effects of air resistance are appreciable?

A car at rest in a traffic queue moves forward in a straight line and then comes to rest again. The graph shows the variation with time of its displacement. What is its speed while it is moving?

A 0.70ms B 0.80ms C 1.25ms D 1.40ms

The diagram shows two vectors X and Y.

In which vector triangle does the vector Z show the magnitude and direction of vector X - Y?

Which graph represents the motion of a car that is travelling along a straight road with a uniformly

Increasing speed?

The graph of velocity against time for an object moving in a straight line is shown

Which of the following is the corresponding graph of displacement against time

Isotopes of a given element all have the same

A charge / mass ratio.  B neutron number.  C nucleon number.  D proton number.

A thin gold foil is bombarded with -particles as shown. The results of this experiment provide information about the  A binding energy of a gold nucleus. B energy levels of electrons in gold atoms. C size of a gold nucleus.  D structure of a gold nucleus.

The nucleus of one of the isotopes of nickel is represented by ⁶⁰ ₂₈ Ni. Which line in the table correctly describes a neutral atom of this isotope?

Which set of radioactive emissions corresponds to the descriptions given in the table headings?

Protons and neutrons are thought to consist of smaller particles called quarks. The 'up' quark has a charge of 2/3 *e : a 'down' quark has a charge of - 1/3 *e, where e is the elementary charge (+1.6 x 10 C).

How many up quarks and down quarks must a proton contain?

The graph shows how the displacement of a particle in a wave varies with time. Which of the following is correct? A The wave has an amplitude of 2 cm and could be either transverse or longitudinal.

B The wave has an amplitude of 2 cm and must be transverse.

C The wave has an amplitude of 4 cm and could be either transverse or longitudinal.

D The wave has an amplitude of 4 cm and must be transverse

A stationary sound wave has a series of nodes. The distance between the first and the sixth node is 30.0 cm. What is the wavelength of the sound wave? A 5.0 cm B 6.0 cm C 10.0 cm D 12.0 cm

Which of the following applies to a progressive transverse wave?

Which of the following may be used to produce stationary waves? A blowing air over the top of an empty bottle  B making a loud sound near a mountain  C passing monochromatic light through a double slit

D passing water waves through a narrow slit

In an interference experiment, two slits are illuminated with white light.

What is seen on the screen? A The central fringe is black with black and white fringes on each side.

B The central fringe is black with coloured fringes on each side.

C The central fringe is white with black and white fringes on each side.

D The central fringe is white with coloured fringes on each side.

Microwaves of wavelength 3.00 cm are incident normally on a row of parallel metal rods. The separation of the rods is 8.00 cm. The first order diffraction maximum is observed at an angle of 22.0° to the direction of the incident waves. What is the angle between the first and second order diffraction maxima?

A B C D

What is the approximate range of frequencies of infra-red radiation? A 1 x 10 Hz to 1 x 10 Hz

B 1 x 10 Hz to 1 x 10 Hz  C 1 x 10 Hz to 1 x 10 Hz  D 1 x 10 Hz to 1 x 10 Hz

The lines of a diffraction grating have a spacing of 1.6 x 10^-6 m. A beam of light is incident normally on the grating. The first order maximum makes an angle of 20 ⁰ with the undeviated beam. What is the wavelength of the incident light? A 210 nm   B 270 nm C 420 nm D 550 nm

Two progressive waves of frequency 300 Hz are superimposed to produce a stationary wave in which adjacent nodes are 1.5m apart. What is the speed of the progressive waves?

A 100ms B 200ms C 450ms D 900ms

Which electrical quantity would be the result of a calculation in which energy is divided by charge?

A current B potential difference  C power D resistance

A wire carries a current of 2.0 amperes for 1.0 hour. How many electrons pass a point in the wire in this time? A B C D

The diagram shows a circuit in which the battery has negligible internal resistance. What is the value of the current I A 1.0 A B 1.6 A C 2.0 A D 3.0A

The diagram shows currents I I I I and I in different branches of a circuit. Which one of the following is correct? A I I I B I I I C I I I D I I I

Which diagram shows a potential divider circuit that can vary the voltage across the lamp?

Which diagram represents the electric field of a negative point charge -q

A potential difference V is applied between two parallel plates a small distance d apart, and produces an electric field of strength E between the plates. What is the electric field strength between the plates when both V and d are doubled? A E B E   C E D E

In the circuit below, the distance between the two parallel plates is 2.0 m. An electron is situated between the plates. What is the force on the electron?

A N B N C N D N

The diagram shows a parallel combination of three resistors. The total resistance of the combination is 3W What is the resistance of resistor X? A W B W C W D W