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 scientist needs to determine the volume of a small, irregularly shaped rock sample. Only a rule and a measuring cylinder, partially filled with wate...

2010 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

A student uses a stopwatch to time a runner running around a circular track. The runner runs two laps (twice around the track). The diagrams show the ...

2010 Summer

2

MCQ

CH2 - FORCES AND MOTION

Two distance/time graphs and two speed/time graphs are shown. Which graph represents an object that is at rest?

2010 Summer

2

MCQ

CH2 - FORCES AND MOTION

A snail moves along a ruler. It takes 20s to move from Q to R.What is its average speed from Q to R?

2010 Summer

2

MCQ

CH2 - FORCES AND MOTION

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

2010 Summer

2

MCQ

CH2 - FORCES AND MOTION

The graph shows how weight varies with mass on planet P and on planet Q. An object weighs 400 N on planet P. The object is taken to planet Q. Whi...

2010 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

The diagram shows a rectangular block of density $2 \text{ g/cm}^3$. What is the mass of the block?

2010 Summer

1

MCQ

CH2 - FORCES AND MOTION

Which statement about a moving object is correct?

2010 Summer

2

MCQ

CH3 - FORCES AND PRESSURE

An experiment is carried out to measure the extension of a rubber band for different loads.The results are shown below.[Table_1]Which figure is missin...

2010 Summer

3

MCQ

CH4 - FORCES AND ENERGY

Energy is stored in a battery and in a box of matches. Which type of energy is stored in each of them? [Table_1]

2010 Summer

3