Honors Conservation of energy quiz

name: last, first

Period

• 1
• 2
• 3
• 4
• 5

1. If a system is closed

• energy can only be gained
• energy can only be lost
• energy can only change forms
• It depends on the system

IF a system if open

• energy can only be lost
• energy can only be gained
• energy can be lost or gained
• total energy must stay the same

Calculate the kinetic energy of a 5 kg mass moving on a 10 meter bridge with a velocity of 20m/s

Calculate the potential energy of a 5 kg mass moving on a 10 meter bridge with a velocity of 20m/s

If you cut the velocity of an object in half ; what would happen to the KE of that object

• double
• cut in half
• increase by a factor of 4
• deacrease into 1/4

Calculate the spring potential energy of

Mass of an object will

• impact total energy it can have on top of a ramp
• impact maximum speed it can have on top of a ramp
• both
• neither

solve for the spring constant