Q18 of 5054_s08_qp_1

Question 18

Question 18 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

1. Motion, forces and ene...

1.7.1. Energy

Recall and use the equation for kinetic energy E_k = ½mv²

3. Waves

3.4. Sound

Know that the speed of sound in air is approximately 330–350m/s

2. Thermal physics

2.1.2. Particle model

Explain qualitatively, in terms of particles, the relationship between: (a) pressure and temperature at constant volume (b) volume and temperature at constant pressure (c) pressure and volume at constant temperature