Theory

CH8 - ELECTRICITY

Which particle does not experience a force due to an electric field?A. \( \alpha \)-particleB. electronC. neutronD. proton

2009 Summer

Theory

CH8 - ELECTRICITY

Using the circuit shown, the current $I$ is found for various voltages $V$. The temperature of the resistor does not change. [Image_1: Circuit Diagram...

2009 Summer

Theory

CH8 - ELECTRICITY

In the circuit shown, ammeter X reads 0.5A. What does ammeter Y read? A. 0 B. 0.5A C. 3.5A D. 4.0A

2009 Summer

Theory

CH8 - ELECTRICITY

In the circuits shown, all the resistors are identical. Which circuit has the least resistance?

2009 Summer

Theory

CH8 - ELECTRICITY

In the circuit below, one of the lamps breaks, causing all the other lamps to go out. Which lamp breaks?

2009 Summer

Theory

CH8 - ELECTRICITY

Either a fuse or a circuit-breaker can be used to protect electrical cables from large currents that could cause overheating.If a fuse is used, in whi...

2009 Summer

Theory

CH8 - ELECTRICITY

The current in a lamp at full brightness is 0.25 A. The flexible cable to the lamp is designed for currents up to 5.0 A, so it can safely carry the 0....

2009 Summer

Theory

CH8 - ELECTRICITY

(a) Fig. 9.1 shows an a.c. supply connected in series to a diode and a resistor.[Image_1: Diagram of Fig. 9.1 with a.c. supply, diode, and resistor]On...

2009 Summer

Theory

CH8 - ELECTRICITY

The circuit shown in Fig. 10.1 uses a 12V battery. (a) Switch S is open, as shown in Fig. 10.1. State the value of (i) the reading on the ammeter...

2009 Summer

Theory

CH8 - ELECTRICITY

A pupil measures the potential difference across a device and the current in it.Which calculation gives the resistance of the device?A current + pote...

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