Many different types of devices, such as flashlights, cell phones, hearing aids, and watches, are powered by batteries. These batteries are sources of chemical energy. Which statement best explains why batteries are used to power these devices? A.
batteries enable devices to use chemical energy directly
B.
batteries convert chemical energy into electrical energy
C.
batteries amplify the chemical energy they provide
D.
batteries reduce the energy demand of powered devices

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Which situation will produce the greatest change of momentum

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom