Semester 2 - Energy Review

As velocity increases, what happens according to the graph?

• Time decreases

• Height increases

• Potential Energy decreases

• Speed remains constant

What is measured by the amount of work it can do?

• Speed

• Energy

• Mass

• Force

The total _______ energy of a system is constant.

• Kinetic

• Potential

• Mechanical

• Thermal

Total Mechanical Energy is the sum of an object's _______.

• PE + KE

• PE - KE

• KE / PE

• PE * KE

The changes in an object's _______ energy only depend on comparing its _______ position and its _______.

What is the principle called that states energy cannot be created nor destroyed, but can be transformed from one type to another in a closed system?

• Conservation of Momentum

• Conservation of Mass

• Conservation of Energy

• Conservation of Velocity

According to the conservation of mechanical energy, the total mechanical energy (E_T) of an object is equal to the sum of its kinetic energy (KE) and what other type of energy?

• Thermal Energy

• Chemical Energy

• Potential Energy

• Electrical Energy

If El Toro starts from rest and goes through a vertical drop of 50 meters, what principle can be used to determine the speed at the bottom of the drop?

• Conservation of Momentum

• Conservation of Mass

• Conservation of Energy

• Conservation of Charge

According to the conservation of energy, what does the kinetic energy (KE) at the bottom of a drop equal?

• The mechanical energy at the top

• The potential energy (PE) at the top

• The sum of potential and kinetic energy at the top

• Half of the potential energy at the top

An object has a mechanical energy of 1575 J and a potential energy of 1265 J. What is the kinetic energy of the object?

• 310 J

• 1575 J

• 1265 J

• 0 J