Theory

CH27 - MEDICAL IMAGING

Fluorine-18 ($^{18}_{9}\text{F}$) decays by beta-plus ($\beta^+$) emission with a half-life of 110 minutes.(a) (i) State the name of the beta-plus par...

2024 Winter

4

Theory

CH27 - MEDICAL IMAGING

Fluorine-18 ($^{18}_{9}\text{F}$) decays by beta-plus ($\beta^+$) emission with a half-life of 110 minutes.(a) (i) State the name of the beta-plus par...

2024 Winter

3

Theory

CH27 - MEDICAL IMAGING

(a) Describe how reflected ultrasound pulses may be used to obtain diagnostic information about internal structures......................................

2024 Summer

5

Theory

CH27 - MEDICAL IMAGING

Ultrasound and X-rays are both types of wave that are used in medical diagnosis to form images of internal body structures.(a) Complete Table 10.1 to ...

2023 Winter

3

Theory

CH27 - MEDICAL IMAGING

(a) X-rays for use in medical diagnosis are produced in an X-ray tube. In the X-ray tube, charged particles are accelerated towards a metal target by ...

2023 Summer

4

Theory

CH27 - MEDICAL IMAGING

(a) Complete Table 10.1 to state, for each type of wave:• the method of production of the wave• whether the wave that is detected and used to form...

2023 Winter

3

Theory

CH27 - MEDICAL IMAGING

(a) Table 8.1 shows some data relating to the properties of air, gel and body tissue. The data are given to three significant figures.[Table_1]\begin{...

2023 Summer

2

Theory

CH27 - MEDICAL IMAGING

Positron emission tomography (PET scanning) involves the detection of gamma-radiation in order to identify the position of origin of positrons in the ...

2022 Winter

4

Theory

CH27 - MEDICAL IMAGING

(a) (i) Explain how X-rays are produced for use in medical diagnosis.....................................................................................

2022 Summer

3

Theory

CH27 - MEDICAL IMAGING

(a) (i) Explain how X-rays are produced for use in medical diagnosis. ..................................................................................

2022 Summer

5

MCQ

CH4 - DYNAMICS

What is a reasonable estimate of the volume of an adult person?

2021 Summer

2

MCQ

CH14 - WAVES

Which combination of units could be used for expressing the power dissipated in a resistor?

2021 Summer

3

MCQ

CH4 - DYNAMICS

A force of 10 N and a force of 5 N act on an object. The angle between the forces is 150°. The resultant force on the object can be resolved i...

2021 Summer

3

MCQ

CH14 - WAVES

A signal of frequency 25 Hz is displayed on the screen of a cathode-ray oscilloscope. What is the time-base setting? 

2021 Summer

3

MCQ

CH2 - MEASUREMENT TECHNIQUES

A micrometer screw gauge is used to measure the diameter of a wire.The reading on the micrometer with the jaws closed is ($-0.05 \pm 0.02$) mm.The rea...

2021 Summer

1

MCQ

CH3 - KINEMATICS

A projectile is launched at an angle to the horizontal at time $t = 0$. It travels over horizontal ground, as shown. Air resistance is negligible. ...

2021 Summer

3

MCQ

CH3 - KINEMATICS

A train, initially at rest at a station, has a uniform acceleration of $0.20 \, \text{m} \, \text{s}^{-2}$ until it reaches a speed of $20 \, \text{m}...

2021 Summer

2

MCQ

CH4 - DYNAMICS

A rocket is fired from the Earth into space. Newton’s third law of motion describes how forces act in pairs. One of the forces of a pair is the...

2021 Summer

2

MCQ

CH4 - DYNAMICS

The graph shows how quantity $P$ varies with quantity $Q$ for a body falling vertically downwards in a uniform gravitational field with air resistance...

2021 Summer

3

MCQ

CH4 - DYNAMICS

Which quantities are conserved in an inelastic collision?

2021 Summer

1