Kinematics
The rate of change of position.
What is velocity?
A force of attraction towards the center of the Earth.
What is gravity?
The formula for kinetic energy of a particle.
What is 1/2 m v2?
The product of a force and a small interval of time over which it acts.
What is an Impulse?
A measure of the maximum displacement of the medium from its equilibrium position.
What is the wave amplitude?
Motion along a curved path under the action of gravity only.
What is projectile motion?
A force perpendicular to the surface of contact between two objects.
What is the Normal force?
The formula for gravitational potential energy near the surface of the Earth.
What is mgh?
A collision in which both momentum and kinetic energy are exactly conserved.
What is an elastic collision?
The change in the frequency of a wave in relation to an observer who is moving relative to the source of the wave.
What is the Doppler effect?
A vector with a magnitude of 1 the can be used to describe a direction.
What is a unit vector?
A nonconservative force that opposes the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
What is friction?
The formula for potential energy stored in a spring.
What is 1/2 k x2
Linear momentum is conserved in the absence of this.
What are external forces?
The force required to keep an object moving in a circle at constant speed.
What is the centripetal force?
A pulling force that acts along a stretched flexible connector, such as a rope or cable.
What is Tension?
The formula for rotational kinetic energy.
What is 1/2 I ω2
A collision in which two objects stick together after colliding.
What is a perfectly inelastic collision?
The formula for the speed of a wave on a string.
What is √(FT / μ)
Name all three of Newton's Laws.
1) An object in motion stays in motion unless acted upon by an external force (Law of Inertia)
2) F = m*a
3) For every force, there is always an equal but oppositely oriented reaction force. (FA->B = -FB->A)
A restorative force for which the magnitude depends on the displacement from an equilibrium position.
What is the spring force (Hooke's Law)?
The formula for Newtonian gravitational potential energy.
What is - G M1 m2 / R
Angular momentum is conserved in the absence of this.
What are external torques?
The net displacement of the medium at any point in space or time, is simply the algebraic sum of individual wave displacements.
What is the superposition principle?