Theory

CH11 - TEMPERATURE

(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

CH11 - TEMPERATURE

(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

CH11 - TEMPERATURE

(a) The resistance of a thermistor at $0\,^{\circ}\text{C}$ is $3840\,\Omega$. At $100\,^{\circ}\text{C}$ the resistance is $190\,\Omega$. When the th...

2010 Summer

Theory

CH11 - TEMPERATURE

(a) The resistance of a thermistor at 0 °C is 3840 $\Omega$. At 100 °C the resistance is 190 $\Omega$. When the thermistor is placed in water ...

2010 Summer

Theory

CH11 - TEMPERATURE

(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

CH11 - TEMPERATURE

(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

CH11 - TEMPERATURE

(a) A resistance thermometer and a thermocouple thermometer are both used at the same time to measure the temperature of a water bath. Explain why, a...

2011 Winter

Theory

CH11 - TEMPERATURE

(a) Two metal spheres are in thermal equilibrium. State and explain what is meant by thermal equilibrium.   [2] (b) An electric water heat...

2012 Winter

Theory

CH11 - TEMPERATURE

A microwave cooker uses electromagnetic waves of frequency 2450MHz. The microwaves warm the food in the cooker by causing water molecules in the food ...

2014 Summer

Theory

CH11 - TEMPERATURE

(a) State what is meant by an $\textit{ideal gas}$.   [2] (b) The mean-square speed of the atoms of a fixed mass of an ideal gas at $32\, ^...

2015 Winter

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which quantity can be measured in electronvolts (eV)?

2014 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The unit of specific heat capacity is $\text{J kg}^{-1} \text{K}^{-1}$.What is its equivalent in terms of SI base units?

2014 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is the vertical component of this displacement vector?

2014 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The resistance of a lamp is calculated from the value of the potential difference (p.d.) across it and the value of the current passing through it.Whi...

2014 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The display on a cathode-ray oscilloscope shows the signal produced by an electronic circuit. The time-base is set at 5.0 ns per division and the Y-ga...

2014 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A digital caliper is used to measure the 28.50 mm width of a plastic ruler. The digital caliper reads to the nearest 0.01 mm. What is the correct way...

2014 Summer

MCQ

CH3 - KINEMATICS

An experiment is performed to measure the acceleration of free fall $g$. A body falls between two fixed points. The four measurements shown below are ...

2014 Summer

MCQ

CH3 - KINEMATICS

In a cathode-ray tube, an electron is accelerated uniformly in a straight line from a speed of $4 \times 10^{3} \: \text{ms}^{-1}$ to $2 \times 10^{7}...

2014 Summer

MCQ

CH3 - KINEMATICS

The graph shows how the speed $v$ of a sprinter changes with time $t$ during a 100 m race. What is the best estimate of the maximum acceleration of...

2014 Summer

MCQ

CH4 - DYNAMICS

A tennis ball is dropped onto a table and bounces back up. The table exerts a force F on the ball. Which graph best shows the variation with time t o...

2014 Summer