Movin' on through
High Energy!
You spin me right round
A sense of attraction
Collisions
100
This is equivalent area under a curve for a velocity vs. time graph.
What is the displacement?
100
This is where energy goes when it is lost in a collision.
What is sound, heat or light?
100
This is the rotational analog of mass for linear motion and roughly speaking it quantifies how hard it is to spin an object.
What is rotational inertia (or moment of inertia)?
100
The gravitational force changes by this much if you increase the distance between two planets by 3 times.
What is 1/9?
100

A collision in which mechancial energy is not conserved

What is a inelastic?

200
The normal force on a 10 kg block on a horizontal surface that has a string pulling straight up on it with a tension of 48 N.
What is 50 N?
200
A frictionless roller coaster that starts at height 4h will be traveling this much faster than one that starts at height h.
What is twice?
200
The quantity that is conserved when the shape of a spinning object changes as long as there are no external torques.
What is angular momentum?
200
A mass oscillating on a spring will have a zero acceleration at this point.
What is the equilibrium position?
200

A collison in which the total momentum as well as mechanical energy are conserved.

What is inelastic?

300
This is reached when an object falling through air is no longer accelerating.
What is terminal velocity?
300
If the force and displacement do not have a component in this direction then no work is done.
What is parallel?
300
The relationship between torque and angular acceleration?
What is torque = I * alpha?
300
The ratio of the force the Earth exerts on the moon to the force the moon exerts on the Earth.
What is one?
300

These are the kinds of energy that are collectively called mechanical energy

What are Spring Potential, Gravitational Potential and Kinetic Energy?

400
The principle of physics that states forces always come in pairs that are equal in magnitude and opposite in direction.
What is Newton's Third Law?
400
This quantity is found by taking the integral of Force with respect to time (the area under a force versus time graph) and is equal to the change in momentum.
What is Impulse (J)?
400
The best angle (relative to the lever arm) to maximize the torque produced by a force.
What is 90 or 180 degrees?
400
Hooke's Law is defined by this relationship.
What is the force is directly proportional to the displacement? (F = kx)
400

True or false,

If equal and opposite impulse is applied to two objects in a collision, then that means that equal work was done on both objects?

What is false!

For example a light car and a heavy truck collide head on.  They experience equal magnitude forces for equal times, so the impulse magnitude is the same, but if the car crumples a greater distance than the truck does, then it had more work done to it during that time interval.

500
The direction of the net force on an object moving in a circle.
What is towards the center?
500
This quantity is not conserved in an inelastic collision.
What is kinetic energy?
500
The point where the object acts as though all of its mass is at that point.
What is center of mass?
500
The displacement as a function of time for an object undergoing Simple Harmonic Motion is given by this mathematical function.
What is sine or cosine?
500

In a collision between two objects with no outside forces, the motion of this point must be constant

What is the center of mass!

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