Kinematics and Mechanics
This variable represents the initial velocity of an object in the kinematic equations.
u
This term describes the product of an object’s mass and velocity, which remains constant if no external forces act on the object
Momentum
The measurable average of Kinetic Energy
This term describes a device that converts electrical energy into mechanical work using magnetic fields.
Electric Motor
What forces are equal when a satellite is in orbit?
Centripetal and gravitational forces.
This term is defined as the rate of change of velocity over time
Acceleration
This force resists the relative motion of two surfaces in contact
Friction
True or False: A sound wave will travel faster in a vacuum.
False
Sound does not travel at all in a vacuum as it requires a medium.
These two types of transformers are commonly used to increase or decrease AC voltages.
Step-up and step-down transformers
What is the equation for orbital velocity?
V^2 = GM/r
This is the shape of the path taken by a projectile under the influence of gravity alone.
Parabola
A force applied to a stationary object that causes it to rotate about a pivot point creates this physical quantity.
Torque
Energy can be transferred as heat in three different modes:
Conduction, Convection and Radiation
Objects become electrically charged primarily through three processes:
Friction, Conduction and Induction
What is the relationship described for the inverse square law?
Light intensity = 1/r^2
This quantity represents an object's tendency to resist changes in its state of motion, and it depends on the object's mass
Inertia
Provide three examples of a scalar quality:
Scalar quantities (only have magnitude):
e.g. Temperature, Mass, Time, Speed, Energy, Distance
This phenomenon occurs when two waves with the same frequency meet in such a way that their amplitudes add together, resulting in a larger wave
Constructive interference
What is Ferromagnetism?
Ferromagnetism is when certain materials, like iron, become magnets because their tiny magnetic parts (called magnetic moments) line up in the same direction. This makes the whole material magnetic. These materials can stay magnetic even after you take away the external magnetic field.
What is the SI units for a Newton?
This is the type of motion that results when the acceleration of an object is directly proportional to its displacement from the origin, typically seen in systems like springs and pendulums
Simple harmonic motion
Provide three examples of vector quantities:
Vector quantities (have both magnitude and direction): e.g. Displacement, Velocity, Force, Acceleration, Momentum, Electric field
True of False: Light is a wave.
False
Light exhibits wave-particles duality.
This effect occurs when a conductor moves relative to a magnetic field, inducing an electromotive force.
Electromagnetic induction
What is equation of the total energy of a satellite in orbit?
E = -GMm/2r