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 geologist compares the volumes of three rocks, X, Y and Z. Three measuring cylinders contain different volumes of water. He places each rock into on...

2015 Summer

2

MCQ

CH2 - FORCES AND MOTION

A car moves with constant speed and then constant acceleration.Which graph is the speed-time graph for the car?

2015 Summer

1

MCQ

CH2 - FORCES AND MOTION

A car travels 100 km. The journey takes two hours. The highest speed of the car is 80 km/h, and the lowest speed is 40 km/h. What is the average speed...

2015 Summer

1

MCQ

CH2 - FORCES AND MOTION

Diagram 1 shows a piece of foam rubber that contains many pockets of air. Diagram 2 shows the same piece of foam rubber after it has been compressed s...

2015 Summer

1

MCQ

CH1 - MEASUREMENTS AND UNITS

A metal block has the dimensions shown. Its mass is 1000 g.What is the density of the metal?

2015 Summer

2

MCQ

CH3 - FORCES AND PRESSURE

Four objects are each acted on by only two forces, as shown.Which object is in equilibrium?

2015 Summer

1

MCQ

CH3 - FORCES AND PRESSURE

A student measures the length of a spring. She then hangs different weights from the spring. She measures the length of the spring for each different ...

2015 Summer

1

MCQ

CH4 - FORCES AND ENERGY

Which energy resource is used to generate electricity without using any moving parts?

2015 Summer

1

MCQ

CH4 - FORCES AND ENERGY

A cyclist travels down a hill from rest at point X, without pedalling. The cyclist applies his brakes and the cycle stops at point Y. Which energy c...

2015 Summer

1

MCQ

CH3 - FORCES AND PRESSURE

"The diagram shows a simple mercury barometer.Which height is used as a measurement of atmospheric pressure?"

2015 Summer

3