Complete the sentences to explain why an object falling vertically at terminal velocity remains at a constant speed:
"An object falling vertically through a fluid at terminal velocity maintains a constant speed because the downward force, caused by ________, is balanced by the upward resistive force, caused by ________."
Write down the equation that links distance travelled (sss), constant speed (vvv), and time taken (ttt).
The distance between an earthquake epicentre and a seismic recording station is 1.08×106 m1.08 \times 10^6\text{ m}1.08×106 m. A primary seismic wave (P-wave) travels through the Earth's crust at a constant speed of 6.0×103 m/s6.0 \times 10^3\text{ m/s}6.0×103 m/s. Calculate the time taken for the P-wave to travel from the epicentre to the recording station.
Practise AQA GCSE Physics Forces and motion with exam-style questions for Foundation and Higher tier. 83 questions covering Describing motion along a line, Forces, accelerations and Newton's Laws of motion, and Forces and braking, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.