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

5

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

7

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

The diagrams show the readings on a measuring cylinder before and after a small metal cube is added.How many more identical cubes can be added to the ...

2013 Summer

2

MCQ

CH2 - FORCES AND MOTION

Which person is experiencing an acceleration?

2013 Summer

2

MCQ

CH2 - FORCES AND MOTION

A car travels at various speeds during a short journey. The table shows the distances travelled and the times taken during each of four stages P, Q, R...

2013 Summer

2

MCQ

CH2 - FORCES AND MOTION

Two blocks of metal X and Y hang from spring balances, as shown in the diagrams. What does the diagram show about X and Y?

2013 Summer

2

MCQ

CH2 - FORCES AND MOTION

A 1 kg sample of aluminium is stored in a laboratory. In a different laboratory, in the same town, there is a 1 kg sample of iron.Which quantity must ...

2013 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

A measuring cylinder has a mass of 120 g when empty. When it contains 50 cm^3 of a liquid, the total mass of the measuring cylinder and the liquid is ...

2013 Summer

3

MCQ

CH2 - FORCES AND MOTION

A car moves along a level road. The diagram shows all of the horizontal forces acting on the car. Which statement is correct?

2013 Summer

2

MCQ

CH3 - FORCES AND PRESSURE

The diagram shows a force being applied to a lever to lift a heavy weight. Which change would enable the heavy weight to be lifted with a smaller forc...

2013 Summer

7

MCQ

CH4 - FORCES AND ENERGY

The diagram shows a hydroelectric system.What are the main energy changes taking place?

2013 Summer

2

MCQ

CH4 - FORCES AND ENERGY

An escalator (moving stairs) and a lift (elevator) are both used to carry passengers from the same underground railway platform up to street level. Th...

2013 Summer

2