February/March 2026 Paper 42

2026 · 11 questions · 49 parts · 80 marks

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1(a)1(b)1(c)

–/6 mks

2(a)(i)2(a)(ii)2(a)(iii)2(a)(iv)2(b)2(b)(i)2(b)(ii)

–/9 mks

3(a)(i)3(a)(ii)3(a)(iii)3(b)

–/7 mks

4(a)4(b)(i)4(b)(ii)4(c)

–/7 mks

5(a)5(b)(i)5(b)(ii)

–/8 mks

6(a)(i)6(a)(ii)6(a)(iii)6(b)6(b)(i)6(b)(ii)

–/7 mks

7(a)7(b)7(c)7(d)

–/7 mks

8(a)(i)8(a)(ii)8(b)8(b)(i)8(b)(ii)

–/8 mks

9(a)9(b)9(c)

–/8 mks

Q10

10(a)10(a)(i)10(a)(ii)10(b)10(b)(i)10(b)(ii)

–/5 mks

Q11

11(a)11(b)11(b)(i)11(b)(ii)

–/8 mks

Context for question 9

Figure 9.1 shows a beam of

α

-particles and

γ

-radiation entering an electric field between two charged metal plates P and Q.

Figure 9.1, a beam of alpha-particles and gamma-radiation travelling horizontally into the gap between two parallel charged plates, plate P positive on top and plate Q negative on the bottom, with space between the plates for the candidate to draw the deflected paths

9(a)Coulombs Law Electric FieldsMedium3 marks

On Figure 9.1, draw the path of: 1 the

α

-particles inside the electric field. Label this line

α

. 2 the

γ

-radiation inside the electric field. Label this line

γ

Draw with the mouse or a finger.

9(b)Radiation Properties Uses SafetyEasy2 marks

A student places a sheet of paper in the path of the beam before it reaches the electric field. State how this affects the path of the

α

-particles and

γ

-radiation inside the electric field.

α

-particles

γ

-radiation

9(c)Coulombs Law Electric FieldsMedium3 marks

The beam of

α

-particles and

γ

-radiation in Figure 9.1 is replaced by a beam of

β

-particles. State and explain the path of the

β

-particles in the electric field. Use ideas about electrostatic force in your answer.

Statement

Explanation

0 words