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

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...

2011 Summer

Theory

CH2 - FORCES AND MOTION

An object moves initially with constant speed and then with constant acceleration. Which graph shows this motion?

2011 Summer

Theory

CH6 - WAVES AND SOUNDS

A tennis player hits a ball hard and 0.40 s later hears the echo from a wall. The speed of sound in air is 330 m/s.How far away is the player from the...

2011 Summer

Theory

CH2 - FORCES AND MOTION

Which statement about mass and weight is correct?A. Mass and weight are both forces.B. Neither mass nor weight is a force.C. Only mass is a force.D. O...

2011 Summer

Theory

CH3 - FORCES AND PRESSURE

The diagram shows a balance being used to find the weight of a baby. The weight of the basket can be ignored.At equilibrium, the pivot is nearer to th...

2011 Summer

Theory

CH1 - MEASUREMENTS AND UNITS

A cube of side 2.0 cm is placed on a balance. What is the density of the cube? A. 0.90 g/cm³ B. 1.2 g/cm³ C. 1.8 g/cm³ D. 3.6 g/cm³

2011 Summer

Theory

CH3 - FORCES AND PRESSURE

Objects with different masses are hung on a spring. The diagram shows how much the spring stretches.The extension of the spring is directly proportion...

2011 Summer

Theory

CH4 - FORCES AND ENERGY

Which row gives an example of the stated form of energy?[Table_1]form of energy | exampleA gravitational | the energy due to the movement of a train a...

2011 Summer

Theory

CH4 - FORCES AND ENERGY

Which energy resource is used to generate electricity by first boiling water? A. hydroelectric B. nuclear fission C. tides D. waves

2011 Summer

Theory

CH4 - FORCES AND ENERGY

Two farmers use an electrically powered elevator to lift bales of hay. All the bales of hay have the same mass. As sunset approaches, they increase...

2011 Summer