AS LEVEL EDEXCEL PHYSICS PAPER 2 Exam
Questions and Answers A+ Graded (2025)
1. What .are .the .different .energy .stores?: .- .Gravitational .potential
- Elastic .potential
- Electrostatic .energy
- Kinetic .energy
- Nuclear .energy
- Magnetic .energy
- Thermal .energy
- Chemical .energy
2. What .are .the .different .ways .in .which .energy .is .transferred?: .By .heating
.By .electrical .equipment
Through .work .done .by .forces .acting .over .a .distance
3. What .is .a .sankey .diagram?:
4. Explain .conservation .of .energy.: .Energy .cannot .be .created .or .destroyed,
.only .transferred .between .stores. .When .there .are .energy .transfers .in .a .closed
.system, .then .there .is .no .net .change .to .the .total .system.
5. What .is .the .equation .for .work .done?: .Work .done .(J) .= .force .x .distance
6. What .is .equal .to .work .done?: .Energy
.transferred .1 .J .= .1 .NM
7. What .is .the .equation .for .gravitational .potential .energy?: .GPE .= .m .x .g .x .h
8. What .is .the .equation .for .kinetic .energy?: .KE .= .1/2 .x .v^2 .x .m
9. What .always .happens .to .some .of .the .energy .in .system .changes?: .Some .of
.the .energy .is .dissipated .to .the .surroundings .as .waste .energy, .usually .as .heat
.energy
10. What .is .power?: .Power .is .the .rate .at .which .energy .is .transferred, .measured
.in .watts.
,Example: .an .electric .heater .with .a .power .of .600W .transfers .600J .of .energy .per
.second.
11. What .is .the .equation .for .power?: .work .done .or .energy ./ .time .taken.
12. What .is .one .watt .equal .to?: .One .joule .per .second.
13. What .is .efficiency?: .Useful/total
14. What .are .the .non-contact .forces?: .- .Gravity
- Electrostatic .forces
- Magnetic .attraction .and .repelling
15. What .are .the .contact .forces?: .- .Normal .contact .force
- Friction
16. What .is .the .difference .between .vector .and .scalar?: .Scalar .has .a .magnitude
.only .wheras .vector .has .a .magnitude .and .a .direction
, 17. How .do .you .draw .free .body .force .diagram?: .It .is .all .the .forces .acting
.on .an .isolated .body .with .the .sizes .of .the .arrows .showing .the .relative
.magnitudes .of .the .forces.
18. What .is .the .reactant .force?: .The .reactant .force .is .the .total .overall .force
.on .an .object
19. What .does .a .vector .diagram .look .like .if .the .object .is .in .equilibrium?: .The
.tip .of .the .last .force .should .end .where .the .tail .of .your .first .force .begins
20. What .does .it .mean .to .split .a .force .into .it's .components?: .Forces .can .be .split
.into .the .vertical .and .horizontal .forces .at .right .angles .from .each .other. .Acting
.together, .these .forces .have .the .same .effect .as .the .single .force.
21. How .do .you .reduce .unwanted .energy .transfer?: .Through .lubrication,
.which .reduces .energy .transferred .by .friction .in .moving .parts.
22. What .way .does .conventional .current .flow .in?: .From .the .positive .terminal
.to .the .negative .terminal
23. What .are .the .different .circuit .symbols?:
24. What .are .the .differences .between .a .series .and .parallel .circuit?: .-
.Series .circuits .only .have .one .path .around .the .circuit, .which .means .that .if
.you .remove .or .disconnect .a .component .it .is .broken .and .stops .working
.completely.
The .current .is .the .same .everywhere .and .the .p.d. .is .shared.
- Parallel .circuits .have .more .than .one .path .and .each .component .is
.connected .separately. .Current .conserved .at .a .junction .and .p.d. .the .same
25. What .is .potential .difference?: .Potential .difference .is .the .energy .transferred
.per .unit .charge .and .must .be .connected .in .parallel .because .the .energy .is .used
.between .two .points.
It .is .measured .in .volts, .a .volt .is .therefore .a .joule .per .coulomb.
26. What .is .the .equation .for .energy .transferred?: .Energy .transferred .= .charge .x
.potential .difference .(E .= .Q .x .V .or .E .= .I .x .T .x .V)
27. What .is .current?: .Current .is .rate .of .flow .of .charge .and .is .the .flow .of
.electrons .in .a .metal.
Current .is .created .when .you .have .a .source .of .potential .difference .and .a
.closed .circuit.
Current .is .also .conserved .at .a .junction.
Questions and Answers A+ Graded (2025)
1. What .are .the .different .energy .stores?: .- .Gravitational .potential
- Elastic .potential
- Electrostatic .energy
- Kinetic .energy
- Nuclear .energy
- Magnetic .energy
- Thermal .energy
- Chemical .energy
2. What .are .the .different .ways .in .which .energy .is .transferred?: .By .heating
.By .electrical .equipment
Through .work .done .by .forces .acting .over .a .distance
3. What .is .a .sankey .diagram?:
4. Explain .conservation .of .energy.: .Energy .cannot .be .created .or .destroyed,
.only .transferred .between .stores. .When .there .are .energy .transfers .in .a .closed
.system, .then .there .is .no .net .change .to .the .total .system.
5. What .is .the .equation .for .work .done?: .Work .done .(J) .= .force .x .distance
6. What .is .equal .to .work .done?: .Energy
.transferred .1 .J .= .1 .NM
7. What .is .the .equation .for .gravitational .potential .energy?: .GPE .= .m .x .g .x .h
8. What .is .the .equation .for .kinetic .energy?: .KE .= .1/2 .x .v^2 .x .m
9. What .always .happens .to .some .of .the .energy .in .system .changes?: .Some .of
.the .energy .is .dissipated .to .the .surroundings .as .waste .energy, .usually .as .heat
.energy
10. What .is .power?: .Power .is .the .rate .at .which .energy .is .transferred, .measured
.in .watts.
,Example: .an .electric .heater .with .a .power .of .600W .transfers .600J .of .energy .per
.second.
11. What .is .the .equation .for .power?: .work .done .or .energy ./ .time .taken.
12. What .is .one .watt .equal .to?: .One .joule .per .second.
13. What .is .efficiency?: .Useful/total
14. What .are .the .non-contact .forces?: .- .Gravity
- Electrostatic .forces
- Magnetic .attraction .and .repelling
15. What .are .the .contact .forces?: .- .Normal .contact .force
- Friction
16. What .is .the .difference .between .vector .and .scalar?: .Scalar .has .a .magnitude
.only .wheras .vector .has .a .magnitude .and .a .direction
, 17. How .do .you .draw .free .body .force .diagram?: .It .is .all .the .forces .acting
.on .an .isolated .body .with .the .sizes .of .the .arrows .showing .the .relative
.magnitudes .of .the .forces.
18. What .is .the .reactant .force?: .The .reactant .force .is .the .total .overall .force
.on .an .object
19. What .does .a .vector .diagram .look .like .if .the .object .is .in .equilibrium?: .The
.tip .of .the .last .force .should .end .where .the .tail .of .your .first .force .begins
20. What .does .it .mean .to .split .a .force .into .it's .components?: .Forces .can .be .split
.into .the .vertical .and .horizontal .forces .at .right .angles .from .each .other. .Acting
.together, .these .forces .have .the .same .effect .as .the .single .force.
21. How .do .you .reduce .unwanted .energy .transfer?: .Through .lubrication,
.which .reduces .energy .transferred .by .friction .in .moving .parts.
22. What .way .does .conventional .current .flow .in?: .From .the .positive .terminal
.to .the .negative .terminal
23. What .are .the .different .circuit .symbols?:
24. What .are .the .differences .between .a .series .and .parallel .circuit?: .-
.Series .circuits .only .have .one .path .around .the .circuit, .which .means .that .if
.you .remove .or .disconnect .a .component .it .is .broken .and .stops .working
.completely.
The .current .is .the .same .everywhere .and .the .p.d. .is .shared.
- Parallel .circuits .have .more .than .one .path .and .each .component .is
.connected .separately. .Current .conserved .at .a .junction .and .p.d. .the .same
25. What .is .potential .difference?: .Potential .difference .is .the .energy .transferred
.per .unit .charge .and .must .be .connected .in .parallel .because .the .energy .is .used
.between .two .points.
It .is .measured .in .volts, .a .volt .is .therefore .a .joule .per .coulomb.
26. What .is .the .equation .for .energy .transferred?: .Energy .transferred .= .charge .x
.potential .difference .(E .= .Q .x .V .or .E .= .I .x .T .x .V)
27. What .is .current?: .Current .is .rate .of .flow .of .charge .and .is .the .flow .of
.electrons .in .a .metal.
Current .is .created .when .you .have .a .source .of .potential .difference .and .a
.closed .circuit.
Current .is .also .conserved .at .a .junction.
