Theory

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

1. A long tube contains oil. A small ball is held at rest at the surface of the oil. At time t = 0, the ball is released and begins to fall vertically...

2024 Summer

1

Theory

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

2. Fig. 2.1 shows two identical trolleys, P and Q, held at rest on a frictionless horizontal surface. A load is fixed to trolley P. There is a compres...

2024 Summer

1

Theory

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

3. Fig. 3.1 shows a small block of ice floating in a beaker of warm water. (a) State one way in which the motion of the particles in ice differs from ...

2024 Summer

2

Theory

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

4. The lens in a magnifying glass is a converging lens. (a) Fig. 4.1 shows the lens of the magnifying glass, its two focal points, F1 and F2, and its ...

2024 Summer

1

Theory

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

5. (a) Describe how a longitudinal wave differs from a transverse wave. [2](b) Fig. 5.1 represents a seismic wave produced by an earthquake. (i) State...

2024 Summer

1

Theory

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

1. (a) (i) State the difference between a scalar quantity and a vector quantity. [1] (ii) Define momentum. [1] (b) A test car crashes into a barri...

2024 Winter

Theory

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

1. A ball of mass 130 g is launched from the ground at an initial velocity of 14 m/s vertically upwards. It decelerates until it is at rest momentaril...

2024 Summer

1

Theory

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

6. Fig. 6.1 shows an isolated metal sphere suspended by an insulating thread from the ceiling. The sphere is negatively charged. (a) The charge on the...

2024 Summer

Theory

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

1. (a) A rocket has an initial mass of $7.4 \times 10^6$ kg. (i) Calculate the initial weight of the rocket. weight = ...................................

2024 Winter

Theory

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

7. The electromotive force (e.m.f.) of a battery is 7.5 V.(a) Define the term electromotive force. [2](b) The battery is connected in series with a va...

2024 Summer

MCQ

Understanding scalar and vector quantities

In which row are quantities correctly categorised into scalar quantities and vector quantities? [Table_1]

2024 Summer

3

MCQ

Understanding scalar and vector quantities

Which name is given to the quantity of matter in an object?

2024 Summer

2

MCQ

Understanding scalar and vector quantities

A body is moved from place X to place Y where the gravitational field strength is different. What happens to its mass and to its weight due to the mov...

2024 Summer

1

MCQ

Understanding scalar and vector quantities

The mass of an object is 2.5 kg. The volume of the object is 480 cm^3. What is the density of the object?

2024 Summer

MCQ

Understanding scalar and vector quantities

Four objects each have two forces acting on them. Which object is in equilibrium?

2024 Summer

2

MCQ

Understanding scalar and vector quantities

A ball of mass $m$ falls vertically and hits a hard surface. Its speed on hitting the surface is $v_1$. It rebounds vertically upwards with speed $v_2...

2024 Summer

MCQ

Understanding scalar and vector quantities

A stone is dropped from a tall tower and falls a distance of 50 m to the ground. The stone has a mass of 3.0 kg. At which speed does the stone hit the...

2024 Summer

MCQ

Understanding scalar and vector quantities

A coal-fired power station generates electricity. Coal is burned and the energy released is used to boil water. The steam from the water makes the gen...

2024 Summer

MCQ

Understanding scalar and vector quantities

A man puts some ice into a glass of water on a warm day. After a short time, he notices that the ice disappears and that water droplets appear on the ...

2024 Summer

MCQ

Understanding scalar and vector quantities

Gas of volume 200 cm^3 is trapped inside a container by a piston. The piston is pushed to the right and the volume of the gas decreases to 100 cm^3. T...

2024 Summer

1