Potential energy is the ... Work refers to the transfer of energy from one object to another, and has a close relationship with kinetic energy. Power is the rate at which energy transfers between ...

Save guides, add subjects and pick up where you left off with your BBC account. Gravity is the force that pulls things to the ground. Roller coasters rely on gravity to take them to the end of the ...

As a consulting mechanical engineer, I assessed more than 400 crash tests for the Australasian New Car Assessment Program from 1996 to 2017. It is always interesting to answer questions like this.