Motion and Forces
This term describes the direction and length of a straight line from the starting point to the ending point of an object's motion.
Displacement (The straight-line distance from start to finish).
What is the name of the force that \exists between charged objects?
Electric Force (Attraction or repulsion). Angle of incidence equals \angle of reflection.
This is a substance that flows and takes the shape of its container, including both liquids and gases.
Fluid (Includes both liquids and gases).
In physics, this is done only when a force acts on an object and the object moves in the direction of the force.
Work (Requires force and movement in the same direction).
Unlike mechanical waves, these waves do not require a medium to travel through.
Electromagnetic Waves (Can travel through a vacuum).
According to Newton's First Law, this is the tendency of an object to resist a change in its motion.
Inertia (Resistance to change in motion).
How do atoms become positively or negatively charged?
Gaining or losing electrons (Atoms become ions).
As you climb higher in altitude, what happens to the amount of air pressure exerted on you?
It decreases (Less air above you means less weight/pressure).
This is the rate at which work is done.
Power (Power = Work / Time).
This property of a wave is the number of complete cycles that pass a point in a given time.
Frequency (Measured in Hertz).
This type of friction acts on objects that are not moving.
Static Friction (Force acting on non-moving objects).
What is the term for the continuous flow of electric charge?
Electric Current (Measured in Amperes). ocal Point (Where rays converge).
This upward force acts in the opposite direction of gravity, making objects feel lighter in water.
Buoyant Force (Acts opposite to gravity).
Energy that is stored as a result of position or shape is called this.
Potential Energy (Energy of position).
This full range of frequencies of electromagnetic radiation includes radio waves, visible light, and X-rays.
Electromagnetic Spectrum (Full range of EM radiation).
The motion of a falling object after it is given an initial forward velocity is known as this.
Projectile Motion (Forward velocity combined with gravity).
If 10 Coulombs of charge pass a point in 2 seconds, what is the current?
5 Amperes (Current = Charge / Time = 10C / 2s).
Pressure is calculated by dividing this by the area over which it is exerted.
Force (Pressure = Force / Area).
This percentage compares the work output of a machine to the work input.
Efficiency (Efficiency = [Work Output / Work Input] x 100%).
A material that scatters light, like frosted glass, is described by this term
Translucent (Passes light but scatters it).
To increase the acceleration of an object, you must either increase the net force acting on it or do this to its mass.
Decrease its mass (Acceleration = Force / Mass).
Describe the difference between a conductor and an insulator in terms of charge flow.
Conductors allow easy flow; insulators resist flow.
If an object is less dense than the fluid it is in, it will do this.
Float (Objects float if they are less dense than the fluid).
A stretched rubber band is an example of this specific type of potential energy.
Elastic Potential Energy (Stored by stretching or compressing).
In a longitudinal wave, the area where the particles in a medium are spaced close together is called this.
Compression (High-density area of a longitudinal wave).