Collisions
Energy Types
Conservation of Energy
Bonus Physics
100
Mechanical energy is conserved in this type of collision.
What is elastic collision?
100
This energy type is based on an objects motion.
What is Kinetic Energy?
100
Energy conservation is based on this law of Thermodynamics.
What is The First Law?
100
This force is a perpendicular surface force
What is the Normal Force?
200
Mechanical energy is not conserved in this type of collision.
What is an inelastic collision?
200
The higher above a reference point, the more of this potential energy a object has.
What is gravitational potential energy?
200
In an ideal system with no friction or air resistance, this quantity remains unchanged as kinetic energy and potential energy convert back and forth.
What is Mechanical Energy?
200
This law says the net force on an object equals its mass times its acceleration.
What is Newton's 2nd Law
300
Mechanical energy is increased in this type of collision.
What is a super elastic collision.
300
When does a spring contain stored energy?
When it is compressed or stretched
300
Mechanical energy loss due to friction is typically felt as.....
heat
300
This law says that planets sweep out equal areas in equal times, so they move faster when they are closer to the Sun.
What is Kepler's 2nd Law
400
Two carts collide on a frictionless track and stick together. Before the collision, Cart A is moving to the right and Cart B is at rest. After they stick, they move together to the right. Which quantity must be the same before and after the collision for the system of the two carts?
Total Momentum
400
This energy type is based on an objects location rather than its motion.
What is Potential Energy?
400
If air resistance does negative work the object's mechanical energy must....
Decrease
400
In the pole vault, kinetic energy is transformed into elastic potential energy, which is then transformed into this type of energy at the top of the jump:
What is gravitational Potential Energy?
500
In a head-on elastic collision between a very light and bouncey ball and a very massive stationary wall, what happens to the kinetic energy of the ball?
It remains the same, but the ball reverses direction
500
This type of potential energy includes ATP and batteries, to name a couple
What is Chemical Energy
500
A pendulum has the maximum kinetic energy at what point?
The bottom of the swing
500
Without this a pendulum would swing forever
What is air resistance or friction?