2021
BGCSE Science: Double Award Paper 3 - 2021
Interactive written past paper for ElearnerSpace. Exam Mode provides timed practice. Revision Mode requires the learner to answer first before correction feedback is revealed.
Physics relationships
| Quantity | Relationship |
|---|---|
| speed | speed = distance / time |
| distance on a speed-time graph | area under the graph |
| weight | W = mg |
| gravitational potential energy | GPE = mgh |
| wave speed | v = fλ |
| refractive index | n = sin i / sin r |
| electrical power | P = VI |
| resistance | V = IR |
| ideal transformer | Vp/Vs = Np/Ns and VpIp = VsIs |
Chemistry relationships
moles = concentration (mol/dm3) x volume (dm3)
mass = moles x molar mass
At room temperature and pressure, 1 mole of gas occupies 24 dm3.
Selected relative atomic masses: H 1, C 12, O 16, Mg 24, Cl 35.5, Zn 65.
Useful reminders
- Convert cm3 to dm3 by dividing by 1000.
- State the scientific cause as well as the observation.
- For drawings, complete every required bond, electron pair or label.
BGCSE Science: Double Award Paper 3 - 2021
Interactive written past paper for ElearnerSpace. Exam Mode provides timed practice. Revision Mode requires the learner to answer first before correction feedback is revealed.
Physics relationships
| Quantity | Relationship |
|---|---|
| speed | speed = distance / time |
| distance on a speed-time graph | area under the graph |
| weight | W = mg |
| gravitational potential energy | GPE = mgh |
| wave speed | v = fλ |
| refractive index | n = sin i / sin r |
| electrical power | P = VI |
| resistance | V = IR |
| ideal transformer | Vp/Vs = Np/Ns and VpIp = VsIs |
Chemistry relationships
moles = concentration (mol/dm3) x volume (dm3)
mass = moles x molar mass
At room temperature and pressure, 1 mole of gas occupies 24 dm3.
Selected relative atomic masses: H 1, C 12, O 16, Mg 24, Cl 35.5, Zn 65.
Useful reminders
- Convert cm3 to dm3 by dividing by 1000.
- State the scientific cause as well as the observation.
- For drawings, complete every required bond, electron pair or label.
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