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25
0.5×2×25=25.
Medical admission · Other / specialist pathway · Physics
Conceptual physics and numerical problems
Solve mechanics, electricity and wave questions through units and principles.
Original Model Test for Exam unit. These questions and suggested practice times are independent Kidemy material, not an official or past paper. Choose modules for the target programme; all listed subjects are not required for every applicant.
Learn the idea
Select equations from physical conditions rather than a matching symbol alone. Kinematic formulae using constant acceleration require that assumption. Work and energy need a defined system. Voltage, current and resistance measure different quantities; units offer a useful cross-check.
Worked example
A 0.5 kg mass moving at 4 m/s has kinetic energy 0.5×0.5×16 = 4 J. A 12 V supply across 4 Ω gives 3 A in the ohmic model.
- Draw or name the system.
- State assumptions and known quantities.
- Calculate and interpret units.
Your written practice
Show your working on paper and enter your answer here. If it does not match, compare the model and try again.
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3
I=V/R=24/8.
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20
v=fλ=40×0.5.
Write in your own words. A guardian or teacher should review this response.
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A force can change direction, such as inward acceleration in circular motion.
Use a clear example.
Write in your own words. A guardian or teacher should review this response.
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Efficiency is 70/100=70%: 70 J of each 100 J input becomes the stated useful output in this example.
Define both energy quantities and the remaining transfer.
Physics model test
Solve three numerical tasks and explain two assumptions.
Review with a guardian or teacher
- Use SI units.
- Show the governing equation.
- Check whether conditions justify it.
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