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 quantity with its unit is correct?

2016 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, $\sig...

2016 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The diagram shows two vectors X and Y, drawn to scale. If X = Y − Z, which diagram best represents the vector Z?

2016 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The diagram shows a cathode-ray oscilloscope (c.r.o.) being used to measure the rate of rotation of a flywheel.The flywheel has a small magnet M mount...

2016 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A student determines the density $\rho$ of steel by taking measurements from a steel wire. mass $m = 6.2 \pm 0.1 \text{ g}$ length $l = 25.0 \pm 0.1 \...

2016 Summer

MCQ

CH3 - KINEMATICS

The acceleration of free fall on the Moon is $1.6 \, \text{m}\,\text{s}^{-2}$. The Moon has no atmosphere. An astronaut standing on the surface of the...

2016 Summer

MCQ

CH3 - KINEMATICS

A tennis ball is released from rest at the top of a tall building. Which graph best represents the variation with time $t$ of the acceleration $a$ of ...

2016 Summer

MCQ

CH3 - KINEMATICS

The graph shows how the velocity $v$ of an object moving in a straight line varies with time $t$ from $t = 0$ to $t = T$. Which graph represents th...

2016 Summer

MCQ

CH4 - DYNAMICS

A ball falls vertically onto horizontal ground and rebounds, as shown. The ball has momentum $p_1$ downwards just before hitting the ground. After ...

2016 Summer

MCQ

CH4 - DYNAMICS

A sphere falls from rest through the air. The graph shows the variation with time of the sphere’s velocity. Which diagram shows the forces ac...

2016 Summer