A graph of nucleon number A against proton number Z is shown in Fig. 7.1. The graph shows a cross (labelled P) that represents a nucleus P.

Q#15 ( Past Exam Paper – November 2018 Paper 23 Q7 ) A graph of nucleon number … Read more A graph of nucleon number A against proton number Z is shown in Fig. 7.1. The graph shows a cross (labelled P) that represents a nucleus P.

The diagrams show four pairs of waves. In each case the displacement y measured at a fixed point is plotted against time t.

Q#26 ( Past Exam Paper – November 2017 Paper 13 Q30 ) The diagrams show four pa… Read more The diagrams show four pairs of waves. In each case the displacement y measured at a fixed point is plotted against time t.

A car is travelling at constant velocity. Its brakes are then applied, causing uniform deceleration. Which graph shows the variation with

Q#31 ( Past Exam Paper – March 2016 Paper 12 Q7 ) A car is travelling at consta… Read more A car is travelling at constant velocity. Its brakes are then applied, causing uniform deceleration. Which graph shows the variation with

A uniform diving-board is held by two fixed rods at points P and Q. A person stands at end R of the diving-board, as shown.

Q#32 ( Past Exam Paper – June 2018 Paper 12 Q13 ) A uniform diving-board is hel… Read more A uniform diving-board is held by two fixed rods at points P and Q. A person stands at end R of the diving-board, as shown.

There is a current from P to R in the resistor network shown. The potential difference (p.d.) between P and Q is 3 V.

Q#32 ( Past Exam Paper – June 2016 Paper 11 Q35 ) There is a current from P to … Read more There is a current from P to R in the resistor network shown. The potential difference (p.d.) between P and Q is 3 V.

A crane has an arm to which is attached a frictionless pulley. A cable passes over the pulley and supports a load of 10 kN as shown.

Q#12 ( Past Exam Paper – March 2016 Paper 12 Q2 ) A crane has an arm to which i… Read more A crane has an arm to which is attached a frictionless pulley. A cable passes over the pulley and supports a load of 10 kN as shown.

The Young modulus of steel is twice that of copper. A 50 cm length of copper wire of diameter 2.0 mm is joined to a 50 cm

Q#9 ( Past Exam Paper – March 2016 Paper 12 Q19 ) The Young modulus of steel is… Read more The Young modulus of steel is twice that of copper. A 50 cm length of copper wire of diameter 2.0 mm is joined to a 50 cm

A circuit contains a cell, two resistors of resistances R1 and R2 and a variable resistor X. The cell has negligible internal resistance.

Q#33  ( Past Exam Paper – June 2016 Paper 13 Q35 ) A circuit contains a cell, t… Read more A circuit contains a cell, two resistors of resistances R1 and R2 and a variable resistor X. The cell has negligible internal resistance.