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

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