Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

1 Fig. 1.1 shows a straight section of a river where the water is flowing from right to left at a speed of 0.54 m / s. A swimmer starts at point P an...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

2 Fig. 2.1 shows a motorcyclist accelerating along a straight horizontal section of track. The motorcyclist and motorcycle have a combined mass of 24...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

3 A rubber balloon is inflated with helium and sealed so that no helium escapes. The balloon is positioned immediately below the ceiling in a room. He...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

4 A student investigates the efficiency of a filament lamp. Fig. 4.1 shows the filament lamp with its glass bulb immersed in water in a beaker. The r...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

5 Fig. 5.1 shows a block ABCD made of glass that has a refractive index of 1.5. The block has one curved side AB and three straight sides, BC, CD and...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

6 A mobile phone (cell phone) network uses microwaves of frequency 1.9 × 10^9 Hz to transmit and receive signals. The speed of microwaves in air is 3...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

7 Fig. 7.1 shows a circuit that contains a battery, a switch, a voltmeter and three 40 Ω resistors, R1, R2 and R3. The switch is open and resistors ...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

8 The electricity supplied to a town is transmitted using a high-voltage cable. A transformer in the town has a soft-iron core.(a) Explain the princip...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

9 Fig. 9.1 represents all the particles in a neutral atom of a radioactive isotope X1. (a) Determine the number of neutrons in this atom and explain h...

2023 Summer

Theory

Identifying scalar quantities: distance, speed, time, mass, energy, temperature

10 Pluto is a dwarf planet. Fig. 10.1 shows the direction of motion of Pluto as it follows its elliptical orbit around the Sun. (a) Point X is the poi...

2023 Summer

MCQ

Understanding scalar and vector quantities

Which vector diagram correctly shows the force Z as the resultant of forces X and Y?

2023 Summer

MCQ

Understanding scalar and vector quantities

An object falls towards the surface of the Earth.The object is falling at its terminal velocity.Which statement is correct?

2023 Summer

MCQ

Understanding scalar and vector quantities

The graph represents the motion of a vehicle. What is the distance travelled by the vehicle in 400 s?

2023 Summer

MCQ

Understanding scalar and vector quantities

On the Earth, a spring stretches by 5.0 cm when a mass of 3.0 kg is suspended from one end. The gravitational field strength on the Moon is \( \frac{1...

2023 Summer

MCQ

Understanding scalar and vector quantities

A shopkeeper pours rice into a dish that hangs from a spring balance. He records the reading. A customer buys some pasta. The shopkeeper notices that...

2023 Summer

MCQ

Understanding scalar and vector quantities

A student determines the density of an irregularly shaped stone. The stone is slowly lowered into a measuring cylinder partly filled with water. Whic...

2023 Summer

MCQ

Understanding scalar and vector quantities

A train is travelling horizontally in a straight line. A book is on a table in the train.The diagram shows all the forces acting on the book.How is th...

2023 Summer

MCQ

Understanding scalar and vector quantities

The diagrams show four beams, each of negligible weight and freely pivoted. Which beam is not in equilibrium?

2023 Summer

MCQ

Understanding scalar and vector quantities

An object of mass 1.2 kg is moving with a velocity of 2.0 m/s when it is acted on by a force of 4.0 N. The velocity of the object increases to 5.0 m/s...

2023 Summer

MCQ

Understanding scalar and vector quantities

Which row about the change of energy in the energy store must be correct? [Table_1]

2023 Summer