MCQ

Efficiency and Energy Density

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

3

MCQ

Efficiency and Energy Density

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

2

MCQ

Efficiency and Energy Density

In many old-style filament lamps, as much as 92 J of energy is emitted as thermal energy for every 8 J of energy emitted as light. What is the effici...

2011 Winter

3

MCQ

Efficiency and Energy Density

An electric motor is required to produce 120 W of mechanical output power. The efficiency of the motor is 80%. Which is correct?  

2011 Winter

1

MCQ

Efficiency and Energy Density

An electric motor is required to produce 120 W of mechanical output power. The efficiency of the motor is 80%. Which row is correct?

2011 Winter

2

MCQ

Efficiency and Energy Density

The data below are taken from a test of a petrol engine for a motor car. power output 150 kW fuel consumption 20 litres per hour energy content of ...

2012 Summer

2

MCQ

Efficiency and Energy Density

The diagram shows the design of a water wheel which drives a generator to produce electrical energy. The flow rate of the water is 200$ kg  s^{-1...

2012 Summer

3

MCQ

Efficiency and Energy Density

The pump of a water pumping system uses 2.0 kW of electrical power when raising water. The pumping system lifts 16 kg of water per second through a ve...

2013 Winter

2

MCQ

Efficiency and Energy Density

A bow of mass 400 g shoots an arrow of mass 120 g vertically upwards. The potential energy stored in the bow just before release is 80 J. The system h...

2013 Summer

3

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which pair of quantities contains one vector and one scalar quantity?

2013 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

One property Q of a material is used to describe the behaviour of sound waves in the material. Q is defined as the pressure P of the sound wave divide...

2013 Summer

2

MCQ

CH3 - KINEMATICS

A cannon fires a cannonball with an initial speed $v$ at an angle $\alpha$ to the horizontal. Which equation is correct for the maximum height $H$ re...

2013 Summer

3

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

A wave has a frequency of 5 GHz. What is the period of the wave?

2013 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

In an experiment to determine the acceleration of free fall $g$, the period of oscillation $T$ and length $l$ of a simple pendulum were measured. The ...

2013 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

The Y-input terminals of a cathode-ray oscilloscope (c.r.o.) are connected to a supply of amplitude 5.0 V and frequency 50 Hz. The time-base is set at...

2013 Summer

2

MCQ

CH3 - KINEMATICS

A body is released from rest and falls vertically in air of constant density. Which statement about the motion of the falling body is correct?

2013 Summer

2

MCQ

CH3 - KINEMATICS

A goods train passes through a station at a steady speed of 10 m s$^{-1}$. An express train is at rest at the station. The express train leaves the st...

2013 Summer

2

MCQ

CH3 - KINEMATICS

A car is stationary at traffic lights. When the traffic lights go green, the driver presses down sharply on the accelerator. The resultant horizontal ...

2013 Summer

2

MCQ

CH4 - DYNAMICS

Which of the following is a statement of the principle of conservation of momentum?

2013 Summer

2