Theory

Gravitational Potential Energy

(a) Starting from the equation for the gravitational potential due to a point mass, show that the gravitational potential energy $E_p$ of a point mass...

2022 Summer

3

Theory

Gravitational Potential Energy

The Sun may be considered as a uniform sphere with a mass of $1.99 \times 10^{30} \text{kg} $ and a surface temperature of 5780K. A probe with a mass...

2024 Winter

2

Theory

Gravitational Potential Energy

(a) State what is meant by a field of force. [1] (b) Gravitational fields and electric fields are two examples of fields of force. State one similari...

2011 Summer

4

Theory

Gravitational Potential Energy

(a) A stone of mass m has gravitational potential energy $E_P$ at a point $X$ in a gravitational field. The magnitude of the gravitational potential a...

2014 Summer

2

Theory

Gravitational Potential Energy

(a) The gravitational potential \( \phi \) at distance \( r \) from point mass \( M \) is given by the expression \[ \phi = -\frac{GM}{r} \] where \...

2012 Summer

3

Theory

Gravitational Potential Energy

(a) A stone of mass $m$ has gravitational potential energy $E_P$ at a point $X$ in a gravitational field. The magnitude of the gravitational potential...

2014 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which quantity can be measured in electronvolts (eV)?

2014 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The unit of specific heat capacity is $\text{J kg}^{-1} \text{K}^{-1}$.What is its equivalent in terms of SI base units?

2014 Summer

2

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is the vertical component of this displacement vector?

2014 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

The resistance of a lamp is calculated from the value of the potential difference (p.d.) across it and the value of the current passing through it.Whi...

2014 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

The display on a cathode-ray oscilloscope shows the signal produced by an electronic circuit. The time-base is set at 5.0 ns per division and the Y-ga...

2014 Summer

2

MCQ

CH2 - MEASUREMENT TECHNIQUES

A digital caliper is used to measure the 28.50 mm width of a plastic ruler. The digital caliper reads to the nearest 0.01 mm. What is the correct way...

2014 Summer

2

MCQ

CH3 - KINEMATICS

An experiment is performed to measure the acceleration of free fall $g$. A body falls between two fixed points. The four measurements shown below are ...

2014 Summer

2

MCQ

CH3 - KINEMATICS

In a cathode-ray tube, an electron is accelerated uniformly in a straight line from a speed of $4 \times 10^{3} \: \text{ms}^{-1}$ to $2 \times 10^{7}...

2014 Summer

2

MCQ

CH3 - KINEMATICS

The graph shows how the speed $v$ of a sprinter changes with time $t$ during a 100 m race. What is the best estimate of the maximum acceleration of...

2014 Summer

2

MCQ

CH4 - DYNAMICS

A tennis ball is dropped onto a table and bounces back up. The table exerts a force F on the ball. Which graph best shows the variation with time t o...

2014 Summer

2