DP Physics (last assessment 2024)
Question 18M.3.HL.TZ1.b.ii
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.3.HL.TZ1.b.ii |
| Level | HL | Paper | 3 | Time zone | TZ1 |
| Command term | Calculate | Question number | b.ii | Adapted from | N/A |
b.ii.
[Maximum mark: 2]
18M.3.HL.TZ1.b.ii
The graph below represents the variation with time t of the horizontal displacement x of a mass attached to a vertical spring.
The total mass for the oscillating system is 30 kg. For this system
calculate the Q at the start of the motion.
[2]
Markscheme
ΔE = 95 – × 30 × π2 × 0.722 = 18 «J»
Q = « 2π =» 33
Accept values between 0.70 and 0.73, giving a range of ΔE between 22 and 9, giving Q between 27 and 61.
Watch for ECF from (b)(i).
[2 marks]
