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 cylindrical can is rolled along the ruler shown in the diagram. The can rolls over twice.What is the circumference (distance all round) of the can?

2012 Summer

1

MCQ

CH2 - FORCES AND MOTION

A car is moving downhill along a road at a constant speed. Which graph is the speed/time graph for the car? [Graph Options A, B, C, D]

2012 Summer

2

MCQ

CH2 - FORCES AND MOTION

In a race, a car travels 60 times around a 3.6 km track. This takes 2.4 hours.What is the average speed of the car?

2012 Summer

2

MCQ

CH3 - FORCES AND PRESSURE

Which quantity is measured in newtons?

2012 Summer

1

MCQ

CH3 - FORCES AND PRESSURE

A geologist places a small rock on the left-hand pan of a balance. The two pans are level as shown when masses with a total weight of 23N are placed o...

2012 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

A stone has a volume of 0.50 cm3 and a mass of 2.0 g. What is the density of the stone?

2012 Summer

3

MCQ

CH2 - FORCES AND MOTION

Passengers are not allowed to stand on the upper deck of double-decker buses. [Image_1: Diagram of a double-decker bus showing upper and lower decks]...

2012 Summer

2

MCQ

CH3 - FORCES AND PRESSURE

The diagram shows a handle with three forces, each 100 N, applied to it. The handle is free to move.What is the effect of the forces on the handle?

2012 Summer

3

MCQ

CH4 - FORCES AND ENERGY

In which pair of energy sources are both sources renewable?

2012 Summer

2

MCQ

CH4 - FORCES AND ENERGY

An object on a thread is swinging between X and Z, as shown in the diagram. It is momentarily at rest at X and at Z. An incomplete word equation about...

2012 Summer

3