All the exercises of the chapter, worked step by step, in order of appearance in the book: first the guided exercises in the text and the section problems, then the end-of-chapter problems (numerical, conceptual, true/false, ranking, graphical, Fermi estimates).
Exercises and problems in the text
- Worked exercise — apple and spring
- Worked exercise — block on an inclined plane with spring and friction
- Two springs and a box
- Worked exercise — minimum height for the loop
- Water and oil at different temperatures
- Volcanic rock in Fanta
- Block on an inclined plane with a spring (equilibrium and oscillations)
- Ball, spring, friction and flight (4 states)
- Bungee jump
End-of-chapter problems
- Kinetic energy of a ball
- True or false on work and energy
- Block on a frictionless inclined plane
- Spring compressed by a block
- Power of a lift
- Work from a triangular force graph
- Estimating the kinetic energy of a car
- Block pushed with friction
- Minimum speed on a loop-the-loop
- Two boys pushing a crate
- Ranking kinetic energies (four objects)
- A ball descending on three tracks
- Spring constant from a graph
- Loop-the-loop
- Stevin’s necklace
- Cart on a frictionless track
- Pushing a moving crate
- Lifting and lowering a book
- Ranking powers (three machines)
- True or false on work and kinetic energy
- Vertical projectile with drag
- Estimating the energy to climb stairs
- Temperature of a car’s brakes
- Work done by a spring from a graph
- Monkey and weight on a pulley
- Work and direction: the suitcase
- Kinetic energy and doubled speed
- Work done by a cyclist going uphill
- Conservation of energy with friction
- Ranking kinetic energies (car, ball, bike, golf)
- Ranking powers (four lifts)
- Work done by an inclined force
- h
- Change in potential energy of a box
- A ball launched by a spring
- Work done against friction
- Speed of a pendulum
- From kinetic energy to speed
- Speed of a falling stone
- Height gained by a lift
- Sci-fi physics: without conservation of energy
- Sci-fi physics: double gravity
- Ballistic pendulum
- Synthesis: inclined plane and spring
- Energy balance of an engine
- Why the pendulum stops
- Reading the E(x) graph of a pendulum
- Reading the F(x) graph of a spring
- Fermi estimate: the calorie of an apple
- Fermi estimate: power of a human being
- Efficiency of a wind turbine blade