Theory

CH9 - DEFORMATION OF SOLIDS

A spring having spring constant $k$ hangs vertically from a fixed point. A load of weight $L$, when hung from the spring, causes an extension $e$. The...

2009 Summer

MCQ

CH9 - DEFORMATION OF SOLIDS

Which is the  best defines elastic and plastic behaviour of a material?

2009 Winter

MCQ

CH9 - DEFORMATION OF SOLIDS

The graph shows the non-linear force-extension curve for a wire made from a new composite material. What could be the value of the strain energy st...

2009 Winter

MCQ

CH9 - DEFORMATION OF SOLIDS

A steel string on an electric guitar has the following properties: diameter = $5.0 \times 10^{-4}\, \text{m}$ Young modulus = $2.0 \times 10^{11}\, ...

2009 Winter

Theory

CH9 - DEFORMATION OF SOLIDS

A uniform wire has length $L$ and area of cross-section $A$. The wire is fixed at one end so that it hangs vertically with a load attached to its free...

2009 Winter

Theory

CH9 - DEFORMATION OF SOLIDS

(a) Explain what is meant by strain energy (elastic potential energy).   [2] (b) A spring that obeys Hooke's law has a spring constant $k$....

2009 Winter

MCQ

CH9 - DEFORMATION OF SOLIDS

In stress-strain experiments on metal wires, the stress axis is often marked in units of $10^8$ Pa and the strain axis is marked as a percentage. This...

2010 Summer

MCQ

CH9 - DEFORMATION OF SOLIDS

A spring is compressed by a force. The graph shows the compressing force $F$ plotted against the length $L$ of the spring. What is the spring const...

2010 Summer

MCQ

CH9 - DEFORMATION OF SOLIDS

Which graph represents the force-extension relationship of a rubber band that is stretched almost to its breaking point?

2010 Summer

MCQ

CH9 - DEFORMATION OF SOLIDS

A spring is compressed by a force. The graph shows the compressing force $F$ plotted against the length $L$ of the spring What is the spring consta...

2010 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which unit can be expressed in base units as kg m^2 s^{-2}?

2019 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The luminosity $L$ of a star is given by $L = 4\pi r^2 \sigma T^4$ where $r$ is the radius of the star, $T$ is the temperature of the star and $\si...

2019 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A particle has velocity $V$ at an angle $\theta$ to the horizontal. The components of the particle’s velocity are $V_v$ upwards in the vertical dire...

2019 Summer

MCQ

CH14 - WAVES

A whale produces sound waves of frequency 5 Hz. The waves are detected by a microphone and displayed on an oscilloscope. What is the time-base sett...

2019 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The speed shown on a car's speedometer is proportional to the rate of rotation of the tyres. The variation of the diameter of a tyre as it wears intro...

2019 Summer

MCQ

CH3 - KINEMATICS

A car travels along a straight horizontal road. The graph shows the variation of the velocity $v$ of the car with time $t$ for 6.0 s of its journey. ...

2019 Summer

MCQ

CH3 - KINEMATICS

A stone is thrown horizontally from the top of a cliff and falls into the sea some time later. Air resistance is negligible. Which graph shows how th...

2019 Summer

MCQ

CH17 - ELECTRIC FIELDS

A positive charge of $2.6 \times 10^{-8} \text{ C}$ is in a uniform electric field of field strength $300000 \text{ Vm}^{-1}$. How much work must be ...

2019 Summer

MCQ

CH4 - DYNAMICS

Each diagram illustrates a pair of forces of equal magnitude. Which diagram gives an example of a pair of forces that is described by Newton's third ...

2019 Summer

MCQ

CH3 - KINEMATICS

A stone is dropped from a tall building. Air resistance is significant. The variation of distance fallen with time is shown by the dashed line. A sec...

2019 Summer