Theory

CH4 - DYNAMICS

A pinball machine uses a spring to launch a small metal ball of mass $4.5 \times 10^{-2}\text{ kg}$ up a ramp. The spring is compressed by $8.0 \times...

2024 Summer

5

Theory

CH4 - DYNAMICS

(a) State the principle of conservation of momentum    [2] (b) An object of mass $2m$ is travelling at a speed of $5.0 \text{ m s}^{-1}$ in...

2024 Summer

3

Theory

CH4 - DYNAMICS

(a) State Hooke's law.    [1] (b) The variation of the applied force with the extension for a sample of a material is shown in Fig. 3.1. ...

2024 Summer

10

Theory

CH4 - DYNAMICS

(a) State the principle of conservation of momentum.   [2] (b) A ball X has mass 240 g and moves in a straight line on a horizontal frictio...

2024 Winter

5

Theory

CH4 - DYNAMICS

(a) Compare an $\alpha$-particle with a $\beta^+$ particle in terms of their masses and charges. [3] (b) Nucleus P undergoes $\alpha$-decay to f...

2024 Winter

5

MCQ

CH4 - DYNAMICS

Two objects X and Y form an isolated system. X and Y collide and then separate. The mass of X is greater than the mass of Y. Which statement about th...

2024 Winter

4

MCQ

CH4 - DYNAMICS

What is meant by the mass and by the weight of an object on the Earth?

2024 Summer

5

MCQ

CH4 - DYNAMICS

A lift (elevator) consists of a passenger car supported by a cable that runs over a light, frictionless pulley to a counterbalance. The counterbalance...

2024 Winter

4

MCQ

CH4 - DYNAMICS

Two train carriages each of mass 5000 kg roll toward one another on a horizontal frictionless track. One is travelling at a speed of 2.00 $m s^{-1}$ a...

2024 Winter

3

MCQ

CH4 - DYNAMICS

A lead pellet is shot vertically upwards into a clay block that is stationary at the moment of impact, but is able to rise freely after impact. The...

2024 Summer

6

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which is an SI base unit?

2015 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which pair contains one vector and one scalar quantity?

2015 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

When a constant braking force is applied to a vehicle moving at speed $v$, the distance $d$ moved by the vehicle in coming to rest is given by the exp...

2015 Summer

4

MCQ

CH2 - MEASUREMENT TECHNIQUES

A whale produces sound waves of frequency 5 Hz. The waves are detected by a microphone and displayed on an oscilloscope. What is the time-base setting...

2015 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

The angular deflection of the needle of an ammeter varies with the current in the ammeter as shown in the graph. Which diagram could represent the ap...

2015 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

The strain energy $W$ of a spring is determined from its spring constant $k$ and extension $x$. The spring obeys Hooke's law and the value of $W$ is c...

2015 Summer

2

MCQ

CH3 - KINEMATICS

A sphere is released and falls. Its initial acceleration reduces until it eventually begins to travel at constant terminal velocity. Which displacemen...

2015 Summer

3

MCQ

CH3 - KINEMATICS

An insect jumps with an initial vertical velocity of 1.0 $\text{m s}^{-1}$, reaching a maximum height of 3.5 $\times 10^{-2} \text{m}$. Assume the dec...

2015 Summer

2

MCQ

CH3 - KINEMATICS

A body having uniform acceleration $a$ increases its velocity from $u$ to $v$ in time $t$. Which expression would not give a correct value for the bo...

2015 Summer

4

MCQ

CH4 - DYNAMICS

What is a reasonable estimate of the average gravitational force acting on a fully grown woman standing on the Earth?

2015 Summer

2