Physics Paper 21
Oct / Nov 2021·5054·10 questions
Mock exam: 75 min, official timing
Question paper
Question 1
Question 2
Question 3
Question 4
Question 5
Question 6
Question 7
Question 8
Question 9
Question 10
Mark scheme
Question 1
1(a)[2]
1(b)(i)[2]
1(b)(ii)[3]
Question 2
2(a)[1]
2(b)(i)[2]
2(b)(ii)[1]
2(c)[3]
Question 3
3(a)[1]
3(b)(i)[2]
3(b)(ii)[1]
3(b)(iii)[2]
3(c)[2]
Question 4
4(a)[1]
4(b)(i)[2]
4(b)(ii)[2]
4(c)[1]
Question 5
5(a)(i)[1]
5(a)(ii)[1]
5(b)(i)[2]
5(b)(ii)[2]
Question 6
6(a)[1]
6(b)(i)[2]
6(b)(ii)[3]
Question 7
7(either)(a)[3]
magnetic field lines cut the solenoid / coils or changing magnetic field in solenoid an electromotive force / e.m.f. is induced electromotive force / e.m.f. produces the current
7(either)(b)[2]
negative / opposite / reversed current / deflection / reading negative e.m.f. / voltage (induced) or magnetic field cut in opposite direction or magnetic field changes in opposite sense / decreases (owtte)
7(or)(a)[1]
NOR (gate)
7(or)(b)(i)[1]
lower logic gate has an input of logic level 1 (and so its output / Y is 0) or the output X has a logic level 1 and so the inputs must both be 0 (Y is an input to the upper NOR gate)
7(or)(b)(ii)[1]
X changes to 0 and Y changes to 1.
7(or)(b)(iii)[1]
both X and Y stay at the new values or neither X nor Y changes
7(or)(b)(iv)[1]
the output shows which terminal (P or Q) last had the value 1.
Question 8
8(a)[1]
8(b)(i)[2]
8(b)(ii)[3]
8(b)(iii)[2]
8(b)(iv)[2]
8(b)(v)[2]
8(c)(i)[2]
8(c)(ii)[1]
Question 9
9(a)(i)[2]
9(a)(ii)[2]
9(a)(iii)[2]
9(b)(i)[2]
9(b)(ii)[2]
9(c)(i)[2]
9(c)(ii)[3]
Question 10
10(a)[1]
10(b)[3]
10(c)(i)[1]
10(c)(ii)[2]
10(c)(iii)[4]
10(c)(iv)[2]
10(d)[2]