• #### 1.  Energy from a compressed spring would be an example of...

• kinetic
• elastic
• gravitational
• chemical
• #### 2.  When a rollercoaster cart moves towards the ground, what happens to the PE that it has?

• It transforms into KE
• It leaves the system
• Nothing
• It stays PE
• #### 3.  In order for work to be done, what must be true?

• Force acts in the same direction as the distance traveled.
• Force and distance are in opposite directions.
• Force is greater than distance.
• Distance is greater than force.
• #### 4.  Based on the formula for potential energy, what 2 variables influence PE the most?

• mass and height
• mass and velocity
• velocity and height
• velocity and mass
• #### 5.  What is kinetic energy?

• stored energy
• energy of motion
• energy of friction
• energy stored in chemical bonds
• #### 6.  The Law of Conservation of Energy states that total amount of energy in a closed system will always

• stay the same
• increase
• decrease
• cannot be determined

• KE x PE
• KE + PE
• KE - PE
• KE / PE
• #### 8.  In which situation is NO work done?

• picking up a book bag
• dropping the bookbag
• carrying the bookbag
• none of these
• #### 9.  What has to happen when a force is exerted on an object for work to be done?

• the object moves
• the object stays still
• the object is heavy
• none of these

• PE = m*g*h
• KE = 1/2m*v2
• W = F*d
• P = W/t
• #### 11.  When you carry an object, is work done on it?

• Yes, force is applied in the same direction as the distance it travels.
• No, force is applied in a different direction than distance traveled.

• Joules
• Watts
• Newtons
• meters

• 1500 N
• 15 N
• 1.5 N
• 150 N
• #### 14.  What is the kinetic energy of a ball sitting on top of a hill?

• 0 J
• less than 0 J
• more than 0 J
• #### 15.  Why does the total amount of mechanical energy stay constant in a system?

• energy is not created or destroyed
• energy leaves
• energy enters
• energy is not converted from one form into another
• #### 16.  What is being transferred as you do work?

• Energy
• Heat
• Power
• Gravitational Potential Energy

• ME = KE + PE
• KE = ME + PE
• PE = KE + ME
• ME = 1/2 mv2
• #### 18.  When a roller coaster cart falls towards the ground, what happens to its potential energy?

• Increases
• Decreases
• Stays the same
• Nothing
• #### 19.  What type of energy represents the sum of the KE and PE that a moving object has?

• chemical energy
• total mechanical energy
• electromagnetic energy
• electrical energy
• #### 20.  Gravitational potential energy depends on the ________ and ________ of the object.

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction
• #### 21.  How do you calculate power?

• P = W/t
• P = E/t
• P = w * t
• P = bbq/chicken
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