1.
State what is meant by standard units.
[1 mark]
- SI units and prefixes
JD SCIENCE
Core physics — particles, electricity, waves and gas laws
Indicative marking points. Award marks for equivalent scientific or mathematical wording. Do not issue this sheet with the student worksheet.
2.
State what is meant by energy stores and transfers.
[1 mark]
- KE, GPE, thermal, chemical
3.
State what is meant by electricity.
[1 mark]
- I = Q/t, V = IR, P = VI
4.
State what is meant by waves.
[1 mark]
- v = fλ
5.
State what is meant by particles and radiation.
[1 mark]
- atoms, isotopes, ionising radiation
6.
State what is meant by gas laws.
[1 mark]
- pV/T constant, kinetic model
7.
State what is meant by forces and pressure.
[1 mark]
- F = ma, P = F/A
8.
State what is meant by magnetism.
[1 mark]
- fields, motors, induction
9.
State what is meant by measurement uncertainty.
[1 mark]
- resolution, random and systematic error
10.
State what is meant by graphs.
[1 mark]
- independent on x, dependent on y
11.
Pat is asked about standard units in a Pearson Science paper.
(a) [2 marks]
- m, kg, s, A, K, mol, cd
(b) [3 marks]
- convert before calculating
12.
Pat is asked about energy stores and transfers in a Pearson Science paper.
(a) [2 marks]
- W = Fs, efficiency
(b) [3 marks]
- used in lab equipment
13.
Pat is asked about electricity in a Pearson Science paper.
(a) [2 marks]
- series and parallel
(b) [3 marks]
- safe use of supplies
14.
Pat is asked about waves in a Pearson Science paper.
(a) [2 marks]
- EM spectrum
(b) [3 marks]
- UV, IR, ultrasound in labs and clinics
15.
Pat is asked about particles and radiation in a Pearson Science paper.
(a) [2 marks]
- half-life, shielding
(b) [3 marks]
- ALARA
16.
Pat is asked about gas laws in a Pearson Science paper.
(a) [2 marks]
- pressure cookers, autoclaves
(b) [3 marks]
- T in kelvin
17.
I = V/R. 12 V, 48 Ω
[3 marks]
- Final answer: 0.25 A
18.
v = fλ. 50 Hz, 6.8 m
[3 marks]
- Final answer: 340 m/s
19.
pV: 100 kPa × 2.0 dm³ to 50 kPa. New V (T constant)?
[3 marks]
- Final answer: 4.0 dm³
20.
27 °C in kelvin
[3 marks]
- Final answer: 300 K
21.
W = mg. 0.25 kg, g=9.8
[3 marks]
- Final answer: 2.45 N
22.
Efficiency 36 J useful from 80 J
[3 marks]
- Final answer: 45%
23.
Pat carries out a T-Level occupational task on T-Level core physics. This is a typical Pearson required-practical style question.
(a) [2 marks]
- Independent: the factor being investigated
- Dependent: the measured result or quality check
(b) [2 marks]
- follow the SOP and keep other variables constant
- so the test is fair / only one variable is changed
(c) [2 marks]
- not recording the batch/lot number or operator ID
24.
Pat carries out writing or following an SOP for T-Level core physics. This is a typical Pearson required-practical style question.
(a) [2 marks]
- Independent: a step in the method
- Dependent: whether the acceptance criteria are met
(b) [2 marks]
- same calibrated instrument
- so the test is fair / only one variable is changed
(c) [2 marks]
- skipping a verification check
25.
Pat carries out a COSHH / risk-assessment review for T-Level core physics. This is a typical Pearson required-practical style question.
(a) [2 marks]
- Independent: hazard
- Dependent: control measure effectiveness
(b) [2 marks]
- same PPE and waste route
- so the test is fair / only one variable is changed
(c) [2 marks]
- using expired reagents or the wrong waste stream
26.
Pat carries out data review in a LIMS or quality log for T-Level core physics. This is a typical Pearson required-practical style question.
(a) [2 marks]
- Independent: sample ID
- Dependent: result vs specification
(b) [2 marks]
- same calculation method
- so the test is fair / only one variable is changed
(c) [2 marks]
- transcription error between the instrument and the LIMS
27.
Compare standard units with waves.
[4 marks]
- SI units and prefixes
- v = fλ
- state one workplace implication
28.
Compare energy stores and transfers with particles and radiation.
[4 marks]
- KE, GPE, thermal, chemical
- atoms, isotopes, ionising radiation
- state one workplace implication
29.
Compare electricity with gas laws.
[4 marks]
- I = Q/t, V = IR, P = VI
- pV/T constant, kinetic model
- state one workplace implication
30.
Compare waves with forces and pressure.
[4 marks]
- v = fλ
- F = ma, P = F/A
- state one workplace implication
31.
Apply your knowledge of forces and pressure to this situation: hydraulics, syringes
[3 marks]
- hydraulics, syringes
32.
Apply your knowledge of magnetism to this situation: used in instruments
[3 marks]
- used in instruments