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

The SI unit for potential difference (the volt) is given, in base units, by

2010 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The product of pressure and volume has the same SI base units as

2010 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

An ion is accelerated by a series of electrodes in a vacuum. A graph of the power supplied to the ion is plotted against time.What is represented by t...

2010 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

A vector quantity $V$ is resolved into two perpendicular components $X$ and $Y$. The angle between $V$ and component $X$ is $\theta$. The angle betwee...

2010 Summer

MCQ

CH3 - KINEMATICS

The diagram shows a velocity-time graph for a vehicle. The vehicle, moving at 4.0 ms-1, begins to accelerate at time = 0. What is the vehicle's ac...

2010 Summer

MCQ

CH3 - KINEMATICS

A small steel ball falls freely under gravity after being released from rest. Which graph best represents the variation of the height $h$ of the ball...

2010 Summer

MCQ

CH4 - DYNAMICS

Two equal masses travel towards each other on a frictionless air track at speeds of $60 \text{ cm s}^{-1}$ and $40 \text{ cm s}^{-1}$. They stick toge...

2010 Summer

MCQ

CH4 - DYNAMICS

A brick weighing 20 N rests on an inclined plane. The weight of the brick has a component of 10 N parallel with the plane. The brick also experiences ...

2010 Summer

MCQ

CH4 - DYNAMICS

The diagram shows two identical spheres X and Y. Initially, X moves with speed v directly towards Y. Y is stationary. The spheres collide elastical...

2010 Summer

MCQ

CH5 - FORCES, DENSITY & PRESSURE

Forces of 3 N, 4 N and 5 N act at one point on an object. The angles at which the forces act can vary. What is the value of the minimum resultant for...

2010 Summer