Theory

CH5 - FORCES, DENSITY & PRESSURE

(a) Define the $\emph{torque}$ of a couple.   [2] (b) A torque wrench is a type of spanner for tightening a nut and bolt to a particular to...

2009 Summer

MCQ

CH5 - FORCES, DENSITY & PRESSURE

What is the centre of gravity of an object?

2009 Winter

MCQ

CH5 - FORCES, DENSITY & PRESSURE

The diagrams show two ways of hanging the same picture. In both cases, a string is attached to the same points on the picture and looped symmetrica...

2009 Winter

MCQ

CH5 - FORCES, DENSITY & PRESSURE

The diagram shows two pulley wheels connected by a belt. Wheel Q is driven by a motor and rotates clockwise at a constant rate. Wheel Q puts tensio...

2009 Winter

MCQ

CH5 - FORCES, DENSITY & PRESSURE

The diagram shows an ice cube floating in water. Both the ice cube and the water are at 0°C. Which statement correctly compares the molecular ...

2009 Winter

MCQ

CH5 - FORCES, DENSITY & PRESSURE

In the kinetic model of gases, what is pressure equal to?

2009 Winter

MCQ

CH5 - FORCES, DENSITY & PRESSURE

A rectangular metal bar exerts a pressure of 15 200 Pa on the horizontal surface on which it rests. If the height of the metal bar is 80 cm, what is ...

2009 Winter

Theory

CH5 - FORCES, DENSITY & PRESSURE

(a) (i) State one similarity between the processes of evaporation and boiling.   [1] (ii) State two differences between the processes of ev...

2009 Winter

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

MCQ

CH5 - FORCES, DENSITY & PRESSURE

An object, immersed in a liquid in a tank, experiences an upthrust. What is the physical reason for this upthrust?

2010 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which is an SI base unit?

2015 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which pair contains one vector and one scalar quantity?

2015 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

When a constant braking force is applied to a vehicle moving at speed $v$, the distance $d$ moved by the vehicle in coming to rest is given by the exp...

2015 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

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 setting...

2015 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The angular deflection of the needle of an ammeter varies with the current in the ammeter as shown in the graph. Which diagram could represent the ap...

2015 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The strain energy $W$ of a spring is determined from its spring constant $k$ and extension $x$. The spring obeys Hooke's law and the value of $W$ is c...

2015 Summer

MCQ

CH3 - KINEMATICS

A sphere is released and falls. Its initial acceleration reduces until it eventually begins to travel at constant terminal velocity. Which displacemen...

2015 Summer

MCQ

CH3 - KINEMATICS

An insect jumps with an initial vertical velocity of 1.0 $\text{m s}^{-1}$, reaching a maximum height of 3.5 $\times 10^{-2} \text{m}$. Assume the dec...

2015 Summer

MCQ

CH3 - KINEMATICS

A body having uniform acceleration $a$ increases its velocity from $u$ to $v$ in time $t$. Which expression would not give a correct value for the bo...

2015 Summer

MCQ

CH4 - DYNAMICS

What is a reasonable estimate of the average gravitational force acting on a fully grown woman standing on the Earth?

2015 Summer