Theory

CH14 - WAVES

(a) Explain the main principles behind the use of ultrasound to obtain diagnostic information about internal body structures.   [4] (b) Dat...

2009 Summer

MCQ

CH14 - WAVES

The order of magnitude of the frequency of the longest-wavelength ultraviolet waves can be expressed as $10^x$ Hz. What is the value of $x$?

2009 Winter

MCQ

CH14 - WAVES

The light from two lasers passes through a vacuum. One laser emits red light and the other emits green light. Which property of the two laser beams m...

2009 Winter

Theory

CH14 - WAVES

(a) State what is meant by a progressive wave.   [2] (b) The variation with distance x along a progressive wave of a quantity y, at a parti...

2009 Winter

MCQ

CH14 - WAVES

Electromagnetic waves from an unknown source in space were found to be significantly diffracted when passing through gaps of the order of $10^{-5}\, \...

2010 Summer

MCQ

CH14 - WAVES

Electromagnetic waves from an unknown source in space were found to be significantly diffracted when passing through gaps of the order of $10^{-5} \te...

2010 Summer

Theory

CH14 - WAVES

(a) A source of sound has frequency $f$. Sound of wavelength $\lambda$ is produced by the source. (i) State what is meant by the frequency of the so...

2010 Summer

Theory

CH14 - WAVES

Explain the main principles behind the generation of ultrasound to obtain diagnostic information about internal body structures.

2010 Summer

Theory

CH14 - WAVES

Explain the main principles behind the $\textbf{generation}$ of ultrasound to obtain diagnostic information about internal body structures.

2010 Summer

MCQ

CH14 - WAVES

The graph shows how the displacement of a particle in a wave varies with time. Which statement is correct?

2010 Winter

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

When a force $F$ moves its point of application through a displacement $s$ in the direction of the force, the work $W$ done by the force is given by $...

2012 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a possible unit for the product $VI$, where $V$ is the potential difference across a resistor and $I$ is the current through the same resistor...

2012 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a reasonable estimate of the average kinetic energy of an athlete during a 100 m race that takes 10 s?

2012 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A light-meter measures the intensity $I$ of the light falling on it. Theory suggests that $I$ varies inversely as the square of the distance $d$. W...

2012 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

In an experiment, a radio-controlled car takes $2.50 \pm 0.05$ s to travel $40.0 \pm 0.1$ m. What is the car’s average speed and the uncertaint...

2012 Summer

MCQ

CH3 - KINEMATICS

In an experiment to determine the acceleration of free fall using a falling body, what would lead to a value that is too large?

2012 Summer

MCQ

CH3 - KINEMATICS

Which feature of a graph allows acceleration to be determined?

2012 Summer

MCQ

CH3 - KINEMATICS

The diagram shows a laboratory experiment in which a feather falls from rest in a long evacuated vertical tube of length $L$. The feather takes tim...

2012 Summer

MCQ

CH3 - KINEMATICS

In the absence of air resistance, a stone is thrown from P and follows a parabolic path in which the highest point reached is T. The stone reaches poi...

2012 Summer

MCQ

CH5 - FORCES, DENSITY & PRESSURE

Each option gives a correct word equation involving force. Which option gives the definition of force?

2012 Summer