Theory

CH5 - THERMAL EFFECTS

(a) A metal ruler with a rectangular cross-section is heated in an oven.(i) State two things that happen to the atoms of the metal.1. ...................

2012 Winter

1

Theory

CH5 - THERMAL EFFECTS

The main parts of a cold store are shown in Fig. 4.1. (a) Explain why the cooling tubes are positioned at the top of the store. [1](b) Suggest why the...

2011 Summer

2

Theory

CH5 - THERMAL EFFECTS

Fig. 5.1 shows a typical laboratory thermometer.(a) Explain why the thermometer has(i) thin walls on its bulb,...........................................

2009 Summer

2

Theory

CH5 - THERMAL EFFECTS

The liquid-in-glass thermometer in Fig. 6.1 has a scale from -10°C to 110°C.(a) Two of the temperatures marked on the thermometer are known as fixed...

2012 Summer

3

Theory

CH5 - THERMAL EFFECTS

(a) In terms of molecules, explain why solids expand when they are heated................................................................................

2012 Summer

3

Theory

CH5 - THERMAL EFFECTS

In Fig. 4.1, the smoke cell consists of an illuminated glass box into which some smoke has been injected.(a) Describe briefly what is seen when the co...

2011 Winter

2

Theory

CH5 - THERMAL EFFECTS

(a) Fig. 5.1 shows the cooling curve for a pure substance. The substance is liquid at A.(i) Describe what is happening to the substance between1. A an...

2009 Winter

2

Theory

CH5 - THERMAL EFFECTS

(a) A crystal that dissolves slowly is put into some water in a beaker, as shown in Fig. 6.1.Fig. 6.1As it dissolves, the crystal colours the water ar...

2012 Winter

2

Theory

CH5 - THERMAL EFFECTS

Energy may be transferred from one place to another by means of conduction, convection or radiation. Which process is involved when energy is transfer...

2011 Summer

2

Theory

CH5 - THERMAL EFFECTS

Solar panels are fitted to the roof of a house. Describe briefly what they do.

2011 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

A metre rule is used to measure a length. Which reading is shown to the nearest millimetre?

2009 Summer

2

MCQ

CH2 - FORCES AND MOTION

The graph represents the movement of a body.How far has the body moved after 5 s?

2009 Summer

2

MCQ

CH2 - FORCES AND MOTION

A car travels 100 km. The highest speed of the car is 90 km/h, and the lowest speed is 30 km/h. The journey takes two hours.What is the average speed ...

2009 Summer

2

MCQ

CH2 - FORCES AND MOTION

Which statement about the masses and weights of objects on the Earth is correct?

2009 Summer

2

MCQ

CH2 - FORCES AND MOTION

The table shows the weight in newtons of a 10 kg mass on each of four planets.[Table_1]The diagram shows a force meter (spring balance) being used.On ...

2009 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

Which items of apparatus are required to determine the density of a liquid?

2009 Summer

2

MCQ

CH2 - FORCES AND MOTION

Which property of an object cannot be changed by a force?

2009 Summer

2

MCQ

CH3 - FORCES AND PRESSURE

A wooden plank rests in equilibrium on two boulders on opposite sides of a narrow stream. Three forces of size $P$, $Q$ and $R$ act on the plank.How a...

2009 Summer

2

MCQ

CH4 - FORCES AND ENERGY

Electricity can be obtained from different energy resources.Which energy resource is used to obtain electricity without producing heat to boil water?

2009 Summer

2

MCQ

CH4 - FORCES AND ENERGY

Four people of equal weight on a beach use different routes to get to the top of a sea wall.The image shows a diagram illustrating this scenario: .Whi...

2009 Summer

3