pa answer po ng tama kailangan konapo to

pa answer po ng tama please. kailangan kona poto

1. What does the law of conservation of mechanical energy state?
A. That there is always some energy lost as heat
B. That potential energy is always equal to kinetic energy
C. That potential energy is always converted to kinetic energy
D. That for any system the total amount of mechanical energy remains the same
2. Why would a system have less energy than it originally started with?
A. The energy was destroyed.
B. The energy was lost as heat.
C. The temperature was too low to create heat.
D. More energy was created at the beginning than at the end.
3. Which best describes potential energy?
A. Energy of motion
C. Energy as heat
B. Stored energy
D. Energy that is doing work
4. Which of the following happens to a coconut that falls freely?
A. Loses potential and gains kinetic energy.
B. Gains potential and loses kinetic energy.
C. Gains both potential and kinetic energy.
D. Loses both potential and gains kinetic energy.
5. The wind-up toy that is fully wound and at rest possesses
A. neither PE nor KE
B. potential but no kinetic
C. kinetic but no potential energy
D. both potential and kinetic energy in equal amounts
6. What is the energy of a motorcycle moving slowly at the top of a hill?
A. entirely kinetic
C. entirely potential
B. entirely gravitational D. both Kinetic and Potential
7. Which of the following statements is true?
A. Total energy is not conserved for every system of particles.
B. The work-energy theorem only applies if work is done by a conservative force.
C. Total energy is conserved for every system of particles on which there is an extemal
work done.
D. The principle of the conservation of mechanical energy states that the total mechanical
energy in a system remains constant as long as the only forces acting are conservative
forces.
8. The total mechanical energy of the object at the highest point compared to its total
mechanical energy at the lowest point is
A. lesser.
B. greater
C. equal. D. not related
9. Mechanical energy is
A. found in machinery, only.
B. usually measured at the atomic level.
C. the sum of the chemical and thermal energy of an object.
D. the sum of the kinetic and potential energy of an object.
10. What are the two types of Mechanical Energy? (ME)
C. Potential and Chemical Energy
A. Kinetic and Potential Energy
D. Thermal and Kinetic Energy
B. Kinetic and Nuclear Energy​​