Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

When a liquid is boiling, thermal energy must be supplied in order to maintain a constant temperature. (a) State two processes for which thermal ener...

2009 Summer

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) A student states, quite wrongly, that temperature measures the amount of thermal energy (heat) in a body. State and explain two observations that...

2009 Winter

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) State what is meant by the internal energy of a gas. (b) The first law of thermodynamics may be represented by the equation $$\Delta U = q + w.$...

2009 Winter

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) Some gas, initially at a temperature of 27.2°C, is heated so that its temperature rises to 38.8°C. Calculate, in kelvin, to an appropriate...

2010 Summer

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) (i) State the basic assumption of the kinetic theory of gases that leads to the conclusion that the potential energy between the atoms of an ideal...

2010 Winter

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) The first law of thermodynamics may be expressed in the form $$\Delta U = q + w.$$ Explain the symbols in this expression.  [3] + $\Delta...

2011 Summer

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) The first law of thermodynamics may be expressed in the form $\Delta U = q + w$. Explain the symbols in this expression.  [3] + $\Delta U...

2011 Summer

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) One assumption of the kinetic theory of gases is that gas molecules behave as if they are hard, elastic identical spheres. State two other assumpt...

2011 Winter

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) One assumption of the kinetic theory of gases is that gas molecules behave as if they are hard, elastic identical spheres. State two other assump...

2011 Winter

Theory

CH12 - THERMAL PROPERTIES OF MATERIALS

(a) Define specific latent heat.  [2] (b) The heater in an electric kettle has a power of 2.40 kW. When the water in the kettle is boiling at a...

2012 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a reasonable estimate of the mass of a raindrop?

2020 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

Which quantity is a scalar?

2020 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A galvanometer of resistance 5\(\Omega\) is to be used in a null method.In order to protect the galvanometer from damage due to an excessive initial c...

2020 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

Readings are made of the current $I$ for different voltages $V$ across a fixed resistor. The results are plotted on a graph to show the variation of $...

2020 Summer

MCQ

CH3 - KINEMATICS

A stone is dropped from a height of 20 m above water. The graph shows the variation with time of the velocity of the stone. Which statement describ...

2020 Summer

MCQ

CH3 - KINEMATICS

A car X is travelling at a constant speed $u$ along a straight road. At time $t = 0$ a second car Y is a distance $d_0$ behind car X and travelling at...

2020 Summer

MCQ

CH4 - DYNAMICS

The resultant force acting on an object is slowly increased. Which graph could show the variation with time $t$ of the momentum $p$ of the object?&nb...

2020 Summer

MCQ

CH4 - DYNAMICS

An astronaut has a weight of 660 N when she is standing on the Earth's surface. The acceleration of free fall on the surface of Mars is $3.71 \, \tex...

2020 Summer

MCQ

CH4 - DYNAMICS

A mass $m_1$ travelling with speed $u_1$ collides with a mass $m_2$ travelling with speed $u_2$ in the same direction. After the collision, mass $m_1$...

2020 Summer

MCQ

CH4 - DYNAMICS

The diagrams show a negative electric charge situated in a uniform electric field and a mass situated in a uniform gravitational field. Which row s...

2020 Summer