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 quantity can be measured in electronvolts (eV)?

2014 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The unit of specific heat capacity is $\text{J kg}^{-1} \text{K}^{-1}$.What is its equivalent in terms of SI base units?

2014 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is the vertical component of this displacement vector?

2014 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The resistance of a lamp is calculated from the value of the potential difference (p.d.) across it and the value of the current passing through it.Whi...

2014 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The display on a cathode-ray oscilloscope shows the signal produced by an electronic circuit. The time-base is set at 5.0 ns per division and the Y-ga...

2014 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A digital caliper is used to measure the 28.50 mm width of a plastic ruler. The digital caliper reads to the nearest 0.01 mm. What is the correct way...

2014 Summer

MCQ

CH3 - KINEMATICS

An experiment is performed to measure the acceleration of free fall $g$. A body falls between two fixed points. The four measurements shown below are ...

2014 Summer

MCQ

CH3 - KINEMATICS

In a cathode-ray tube, an electron is accelerated uniformly in a straight line from a speed of $4 \times 10^{3} \: \text{ms}^{-1}$ to $2 \times 10^{7}...

2014 Summer

MCQ

CH3 - KINEMATICS

The graph shows how the speed $v$ of a sprinter changes with time $t$ during a 100 m race. What is the best estimate of the maximum acceleration of...

2014 Summer

MCQ

CH4 - DYNAMICS

A tennis ball is dropped onto a table and bounces back up. The table exerts a force F on the ball. Which graph best shows the variation with time t o...

2014 Summer