The table gives some measurements about a micro-seismic sensor capsule dropped from a surveillance drone:
mass of sensor capsule0.080 kgdistance capsule falls450 mspeed of capsule as it hits the ground15 m/s \begin{array}{|l|l|} \hline \text{mass of sensor capsule} & 0.080 \text{ kg} \\ \hline \text{distance capsule falls} & 450 \text{ m} \\ \hline \text{speed of capsule as it hits the ground} & 15 \text{ m/s} \\ \hline \end{array} mass of sensor capsuledistance capsule fallsspeed of capsule as it hits the ground0.080 kg450 m15 m/sState the relationship between momentum, mass, and velocity.
Calculate the momentum of the sensor capsule as it hits the ground. Give the unit.
State the equation linking gravitational potential energy (GPE), mass, ggg, and height.
Calculate the change in gravitational potential energy (GPE) when the capsule falls 450 m. (Assume g=9.8 m/s2g = 9.8 \text{ m/s}^2g=9.8 m/s2 or g=10 m/s2g = 10 \text{ m/s}^2g=10 m/s2).
State the kinetic energy (KE) of the capsule as it hits the ground, assuming no energy losses.
State the equation linking kinetic energy, mass, and speed.
Show that the speed of the capsule as it hits the ground, assuming no energy losses, would be about 95 m/s95 \text{ m/s}95 m/s.
Explain why the actual speed of the capsule as it hits the ground is much less than 95 m/s95 \text{ m/s}95 m/s.
56 exam-style questions on Edexcel IGCSE Physics Forces, movement, shape and momentum. Each one has a worked solution and a mark scheme showing where the marks go.