Test Unit Energy

The unit of energy in SI is:

• Candela

• Newton

• Joule

Potential energy is:

• The moving energy such as radiant energy, thermal energy, motion energy and electric energy.

• The stored energy such as, chemical energy, nuclear energy, gravitational energy and elastic energy.

• The stored energy such as thermal energy, motion energy and electric energy.

Chemical energy is energy stored in:

• the nucleus of the atom.

• the bond of atoms and molecules.

• an object´s height.

Energy is:

• the ability to make changes and transformations.

• the ability to make fire.

• the ability to make an explosion.

The law of the conservation of the energy says that:

• energy is sometimes created or destroyed.

• we changed it from one form of energy into another, but it can be destroyed.

• energy is never created or destroyed, we changed it from one form of energy into another.

Knowing that Ec = ½·m·v2. if a person of 50 Kg is running at a speed of 3 m/s, what is their kinetic energy?

• 450 J

• 250 J

• 225 J

Knowing that Ep = m·g·h. if a person of 50 Kg is located 3 m above the ground, what is their potential energy? (g=10 m/s2)

• 150 J

• 1500 J

• 15000 J

Which type of energy is associated with the motion of an object?

• Potential Energy

• Electrical Energy

• Kinetic Energy

• Chemical energy

What type of energy is stored in an object due to its position or height?

• Kinetic Energy

• Potential Energy

• Thermal Energy

• Chemical energy

Which type of energy is generated by the movement of electrons?

• Chemical Energy

• Thermal Energy

• Electrical Energy

• Potential energy