e-Review: Powerpoint Notes-Energy

Which statement is correct about energy? The most appropriate statement is Energy _____.

• cannot be created nor destroyed in a chemical change or physical change

• can be transformed from one type of energy to another type

• cannot be increased or decreased in a closed system

• applies to all of the previous statements.

What is the total energy in a system called? The _____ _____ of the system.

What are the two(2) factors required to calculate the Kinetic Energy of an object? The two(2) factors are: _____ and _____.

• Mass and Velocity

• Mass and Height

• Mass and Gravity

• Velocity and Height

The amount of Mechanical Energy in a system having only Kinetic Energy and Potential Energy, can vary at different points. _____.

• True

• False

• This is unknown at different points

• B and C only

Write the mathematical equation, representing the calculation for the Gravitational Potential Energy in a system, using symbols. _____ = _____.

• GPE = m x g

• KE = m x v

• GPE = m x g x h

• PE = m x h

Which of the following types of energy is due to the internal temperature of an object, due to the motion of its molecules? _____ Energy.

• Radiant Energy

• Electrical Energy

• Nuclear Energy

• Thermal Energy

On the rollercoaster track shown, where is Gravitational Potential Energy the greatest? Point ____ is where the Gravitational Potential Energy is greatest.

• Point 1

• Point 2

• Point 4

• Point 6

A Mother is holding her baby girl while waiting in the check out line in the local Krogers grocery store. Is this an example of Kinetic Energy or Potential Energy? This is an example of _____ _____.

In this figure of a pendulum swing, why is the maximum kinetic energy labeled at the middle(2nd position) in the swing? The middle position is _____.

• where the height of the pendulum is the least

• where the gravitational force acting on the pendulum is greatest

• where the mass of the pendulum is greatest

• where the velocity of the pendulum is greatest

Which of the following do Not apply to the definition for energy? Energy _____.

• Is the ability to do work

• Is the capacity to cause a change

• Has no effect on the motion of an object

• does Not apply to the ability to do work or the ability to cause change