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

CH4 - DYNAMICS

What is a reasonable estimate of the volume of an adult person?

2021 Summer

MCQ

CH14 - WAVES

Which combination of units could be used for expressing the power dissipated in a resistor?

2021 Summer

MCQ

CH4 - DYNAMICS

A force of 10 N and a force of 5 N act on an object. The angle between the forces is 150°. The resultant force on the object can be resolved i...

2021 Summer

MCQ

CH14 - WAVES

A signal of frequency 25 Hz is displayed on the screen of a cathode-ray oscilloscope. What is the time-base setting? 

2021 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A micrometer screw gauge is used to measure the diameter of a wire.The reading on the micrometer with the jaws closed is ($-0.05 \pm 0.02$) mm.The rea...

2021 Summer

MCQ

CH3 - KINEMATICS

A projectile is launched at an angle to the horizontal at time $t = 0$. It travels over horizontal ground, as shown. Air resistance is negligible. ...

2021 Summer

MCQ

CH3 - KINEMATICS

A train, initially at rest at a station, has a uniform acceleration of $0.20 \, \text{m} \, \text{s}^{-2}$ until it reaches a speed of $20 \, \text{m}...

2021 Summer

MCQ

CH4 - DYNAMICS

A rocket is fired from the Earth into space. Newton’s third law of motion describes how forces act in pairs. One of the forces of a pair is the...

2021 Summer

MCQ

CH4 - DYNAMICS

The graph shows how quantity $P$ varies with quantity $Q$ for a body falling vertically downwards in a uniform gravitational field with air resistance...

2021 Summer

MCQ

CH4 - DYNAMICS

Which quantities are conserved in an inelastic collision?

2021 Summer