Which is an example of the force of attraction between two objects that have mass? a: gravity b: solar energy d: electricity

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Ascientific blank must be testable and capable of being proven false?