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

When a force $F$ moves its point of application through a displacement $s$ in the direction of the force, the work $W$ done by the force is given by $...

2012 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a possible unit for the product $VI$, where $V$ is the potential difference across a resistor and $I$ is the current through the same resistor...

2012 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a reasonable estimate of the average kinetic energy of an athlete during a 100 m race that takes 10 s?

2012 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A light-meter measures the intensity $I$ of the light falling on it. Theory suggests that $I$ varies inversely as the square of the distance $d$. W...

2012 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

In an experiment, a radio-controlled car takes $2.50 \pm 0.05$ s to travel $40.0 \pm 0.1$ m. What is the car’s average speed and the uncertaint...

2012 Summer

MCQ

CH3 - KINEMATICS

In an experiment to determine the acceleration of free fall using a falling body, what would lead to a value that is too large?

2012 Summer

MCQ

CH3 - KINEMATICS

Which feature of a graph allows acceleration to be determined?

2012 Summer

MCQ

CH3 - KINEMATICS

The diagram shows a laboratory experiment in which a feather falls from rest in a long evacuated vertical tube of length $L$. The feather takes tim...

2012 Summer

MCQ

CH3 - KINEMATICS

In the absence of air resistance, a stone is thrown from P and follows a parabolic path in which the highest point reached is T. The stone reaches poi...

2012 Summer

MCQ

CH5 - FORCES, DENSITY & PRESSURE

Each option gives a correct word equation involving force. Which option gives the definition of force?

2012 Summer