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 diagram shows an enlarged drawing of the end of a metre rule. It is being used to measure the length of a small feather. What is the length of the...

2016 Summer

4

MCQ

CH2 - FORCES AND MOTION

A train begins a journey from a station and travels 60 km in a time of 20 minutes. What is the average speed of the train?

2016 Summer

1

MCQ

CH2 - FORCES AND MOTION

Two runners take part in a race. The graph shows how the speed of each runner changes with time. What does the graph show about the runners at time $...

2016 Summer

3

MCQ

CH2 - FORCES AND MOTION

A cup contains hot liquid. Some of the liquid evaporates. What happens to the mass and what happens to the weight of the liquid in the cup?

2016 Summer

1

MCQ

CH2 - FORCES AND MOTION

An object has a mass of 50 kg.The gravitational field strength on Earth is $10.0 \text{ N/kg}$.The gravitational field strength on a distant planet is...

2016 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

A student wishes to determine the density of an irregularly-shaped stone. First he finds the mass of the stone. Next he lowers the stone into a measur...

2016 Summer

3

MCQ

CH2 - FORCES AND MOTION

Which is an example of a force?

2016 Summer

1

MCQ

CH3 - FORCES AND PRESSURE

The diagram shows an object of weight $W$ and an object of weight $Z$ balanced on a uniform metre rule. Which equation relating to $W$, $Z$, $a$ and $...

2016 Summer

1

MCQ

CH4 - FORCES AND ENERGY

A skier walks from the bottom of a ski slope to the top and gains 10 000 J of gravitational potential energy.She skis down the slope. At the bottom of...

2016 Summer

3

MCQ

CH4 - FORCES AND ENERGY

A coal-fired power station generates electricity. Coal is burnt and the energy released is used to boil water. The steam from the water makes the gene...

2016 Summer

3