Theory

CH25 - QUANTUM PHYSICS

A polished sheet of magnesium in a vacuum emits electrons when it is illuminated by ultraviolet radiation.(a) State the name of this phenomenon..........

2024 Winter

5

Theory

CH25 - QUANTUM PHYSICS

Electrons in a vacuum are accelerated from rest through a potential difference (p.d.) $V$ to form a beam. The electrons each have mass $m$ and charge ...

2024 Winter

6

Theory

CH25 - QUANTUM PHYSICS

A polished sheet of magnesium in a vacuum emits electrons when it is illuminated by ultraviolet radiation.(a) State the name of this phenomenon..........

2024 Winter

4

Theory

CH25 - QUANTUM PHYSICS

(a) State what is meant by a photon......................................................................................................................

2024 Summer

7

Theory

CH25 - QUANTUM PHYSICS

Fig. 8.1 shows part of the emission spectrum of visible radiation emitted by hydrogen gas in a star in a distant galaxy.The galaxy is moving away from...

2024 Summer

6

Theory

CH25 - QUANTUM PHYSICS

(a) State what is meant by a photon......................................................................................................................

2024 Summer

6

MCQ

CH25 - QUANTUM PHYSICS

Which particle is not a fundamental particle?

2024 Summer

6

MCQ

CH25 - QUANTUM PHYSICS

What is the charge of an anti-top quark?

2024 Summer

3

MCQ

CH25 - QUANTUM PHYSICS

A proton has mass $m_p$ and charge $+e$.What are the mass and charge of an antiproton?[Table_1]

2023 Summer

4

MCQ

CH25 - QUANTUM PHYSICS

A $\pi^+$ meson has a charge of $+e$, where $e$ is the elementary charge. It consists of an up quark and one other quark.What could be the other quark...

2023 Summer

6

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

A student creates a table to show reasonable estimates of some physical quantities. Which row is not a reasonable estimate? [Table_1]

2017 Summer

2

MCQ

CH3 - KINEMATICS

A particle travels in a straight line with speed $v$. The particle slows down and changes direction. The new speed of the particle is $\frac{v}{2}$. ...

2017 Summer

3

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The speed $v$ of a liquid leaving a tube depends on the change in pressure $\Delta P$ and the density $\rho$ of the liquid. The speed is given by the ...

2017 Summer

1

MCQ

CH3 - KINEMATICS

The values of displacement, velocity and acceleration of a vehicle can be deduced from graphs representing its motion. Often the areas under these gra...

2017 Summer

3

MCQ

CH4 - DYNAMICS

A ball is released from rest above a hard, horizontal surface. The graph shows how the velocity of the bouncing ball varies with time. At which point...

2017 Summer

3

MCQ

CH3 - KINEMATICS

A ball is kicked upwards at an angle of 45° to horizontal ground. After a short flight, the ball returns to the ground. It may be assumed that ai...

2017 Summer

1

MCQ

CH4 - DYNAMICS

The mass of a rocket-propelled truck is approximately equal to the mass of the fuel in its tank. The fuel is ignited and the truck is propelled along ...

2017 Summer

2

MCQ

CH3 - KINEMATICS

An object is dropped at time $t = 0$ from a high building. Air resistance is significant. Three graphs are plotted against time. The height of the...

2017 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

A student attempts to find the density $\rho$ of aluminium by taking measurements of a rectangular sheet. mass $m = 51.6 \pm 0.1$ g length $l = 100.0 ...

2017 Summer

2

MCQ

CH4 - DYNAMICS

The graph shows how the momentum of a motorcycle changes with time. What is the resultant force on the motorcycle? 

2017 Summer

2