Theory

CH5 - THERMAL EFFECTS

In an experiment, some of a substance changes from a liquid to a gas. The temperature of the remaining liquid changes because of this.What is the name...

2009 Summer

Theory

CH5 - THERMAL EFFECTS

The graph shows the change in temperature of a substance as it is heated steadily.Which part of the graph shows when the substance is boiling?

2009 Summer

Theory

CH5 - THERMAL EFFECTS

Four blocks, made of different materials, are each given the same quantity of internal energy (heat).Which block has the greatest thermal capacity?[Im...

2009 Summer

Theory

CH5 - THERMAL EFFECTS

A rod is made up of copper and wood joined together. After the rod is heated at the join in the centre for about a minute, where would the lowest tem...

2009 Summer

Theory

CH5 - THERMAL EFFECTS

The diagram shows a fire. Why does the smoke rise above the fire?A) Smoke evaporates more quickly at higher temperatures.B) Smoke molecules diffuse mo...

2009 Summer

Theory

CH5 - THERMAL EFFECTS

(a) A certain volume of water at room temperature and the same volume of ice in a freezer are each heated through the same temperature rise.Which of t...

2009 Summer

Theory

CH5 - THERMAL EFFECTS

(a) Some water is poured onto a plastic table-top, forming a puddle. The same volume of water is poured into a plastic dish, which is placed alongside...

2009 Summer

Theory

CH5 - THERMAL EFFECTS

Brownian motion is observed by looking at smoke particles through a microscope.How do the smoke particles move in Brownian motion?A all in the same di...

2009 Winter

Theory

CH5 - THERMAL EFFECTS

To mark a temperature scale on a thermometer, standard temperatures known as fixed points are needed.Which of these is a fixed point?A. room temperatu...

2009 Winter

Theory

CH5 - THERMAL EFFECTS

The table gives the melting points and boiling points of glycerine and benzene.[Table_1]At which temperature will both glycerine and benzene be liquid...

2009 Winter

Theory

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

Theory

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

Theory

CH2 - FORCES AND MOTION

Two distance/time graphs and two speed/time graphs are shown. Which graph represents an object that is at rest? [Image_1: Graphs A, B, C, and D]

2010 Summer

Theory

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?A. $\frac{12}{20}$ cm/sB. $\frac{12 - 2}{20}$ cm/s...

2010 Summer

Theory

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?A. They have the same mass and ...

2010 Summer

Theory

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. Which row...

2010 Summer

Theory

CH1 - MEASUREMENTS AND UNITS

The diagram shows a rectangular block of density $2\, \text{g/cm}^3$.What is the mass of the block?A 2g   B 6g   C 14g   D 24g

2010 Summer

Theory

CH2 - FORCES AND MOTION

Which statement about a moving object is correct? A. When an object is accelerating, the resultant force acting on it must equal zero. B. When an obje...

2010 Summer

Theory

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

Theory

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]| | a battery | a box of matches ...

2010 Summer