Energy, Work and Machines Assessment

Energy stored in atomic bonds that form molecules

• Thermal Energy
  
• Chemical Energy
  
• Electrical Energy
  
• Electromagnetic Energy
  

What kind of energy does a marble at the top of a hill have?

• gravitational potential

• chemical potential

• kinetic

• thermal

What kind of energy does a marble rolling at the bottom of the hill have?

• gravitational potential

• chemical potential

• kinetic

• thermal

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

A force exerted over a distance to move an object is ______________________.

• power
• work
• momentum
• Watt

At which point(s) on the roller coaster is the kinetic energy at its maximum?

• A
• B
• C
• D

What does the Law of Conservation of Energy state?

• Energy cannot be created or destroyed
• Nothing can exchange energy
• Energy will increase over time.
• Energy will decrease over time.

What is mechanical energy?

• It is what metal creates when heated.
• All potential and kinetic energy in a system.
• It is motion of all matter.
• Energy of momentum.

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 

• The PE and KE increase and decrease together
• The PE decreases while the KE increases 
• Impossible to know without knowing the mass