Question

1. choose the best answer. an object in motion, such as an automobile, has __ energy. kinetic electrical potential chemical 7. choose the best answer. the sum of an objects kinetic and potential energy is its __. vector static friction gravitational force thermal energy

Explanation:

• Kinetic energy is the energy of motion. An object in motion (like an automobile) has kinetic energy. Electrical energy involves electric charges, potential energy is stored energy (e.g., due to height or spring compression), and chemical energy is stored in chemical bonds.
• Thermal energy is related to the internal energy of a substance due to the motion of its particles. The sum of an object's kinetic and potential energy is its mechanical energy. But among the given options for question 7, thermal energy is the closest (though not a perfect fit as the sum is actually mechanical energy, but likely a typo/limited - option situation in the question).

Answer:

1. kinetic
2. thermal energy