Question 15
Question 15 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
3. Dynamics
3.1. Momentum and Newton’s laws of...

recall F = ma and solve problems using it, understanding that acceleration and resultant force are always in the same direction

3. Dynamics
3.2. Non-uniform motion

show a qualitative understanding of frictional forces and viscous/drag forces including air resistance (no treatment of the coefficients of friction and viscosity is required, and a simple model of drag force increasing as speed increases is sufficient)

20. Magnetic fields
20.4. Magnetic fields due to curren...

explain the origin of the forces between current-carrying conductors and determine the direction of the forces