Theory

CH6 - WORK, ENERGY & POWER

A signal is to be transmitted along a cable system of total length 125 km. The cable has an attenuation of 7 dB km$^{-1}$. Amplifiers, each having a g...

2009 Summer

MCQ

CH6 - WORK, ENERGY & POWER

A projectile is launched at 45° to the horizontal with initial kinetic energy $E$. Assuming air resistance to be negligible, what will be the kin...

2009 Winter

MCQ

CH6 - WORK, ENERGY & POWER

Two trolleys are placed together on a horizontal runway with a compressed spring between them. When they are released, the 2 kg trolley moves to th...

2009 Winter

MCQ

CH6 - WORK, ENERGY & POWER

An electric railway locomotive has a maximum mechanical output power of 4.0 MW. Electrical power is delivered at 25 kV from overhead wires. The overal...

2009 Winter

MCQ

CH6 - WORK, ENERGY & POWER

A force of 1000 N is needed to lift the hook of a crane at a steady velocity. The crane is then used to lift a load of mass 1000 kg at a velocity of 0...

2010 Summer

MCQ

CH6 - WORK, ENERGY & POWER

A constant force $F$, acting on a car of mass $m$, moves the car up the slope through a distance $s$ at constant velocity $v$. The angle of the slope ...

2010 Summer

MCQ

CH6 - WORK, ENERGY & POWER

A constant force $F$, acting on a car of mass $m$, moves the car up the slope through a distance $s$ at constant velocity $v$. The angle of the slope ...

2010 Summer

MCQ

CH6 - WORK, ENERGY & POWER

A force of 1000 N is needed to lift the hook of a crane at a steady velocity. The crane is then used to lift a load of mass 1000 kg at a velocity of 0...

2010 Summer

MCQ

CH6 - WORK, ENERGY & POWER

A constant force $F$, acting on a car of mass $m$, moves the car up the slope through a distance $s$ at constant velocity $v$. The angle of the slope...

2010 Summer

MCQ

CH6 - WORK, ENERGY & POWER

A force of 1000 N is needed to lift the hook of a crane at a steady velocity. The crane is then used to lift a load of mass 1000 kg at a velocity of 0...

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