1. Redshift in distant galaxies, spectral line shifts, and evidence supporting the expanding universe theory. 2. UK electricity demand, base load identification, and power station startup times for energy supply management. 3. Spring constant determination, energy stored in stretched springs, and proportionality in force-extension relationships. 4. Mini-submarine buoyancy, forces affecting underwater movement, and pressure calculations at deep-sea depths. 5. Energy transfer in boiling water, thermal energy storage, and molecular behavior at high temperatures. 6. Velocity-time graph comparisons in running performance, acceleration trends, and distance-time correlations.