Electromagnets and Electric Motors
A) power tools
B) military communications
C) broadcasts
Power tools
what is amplitude
A) the maximum displacement or distance moved by a point on a vibrating body
B) the distance between identical points
C) the rate of change of velocity
the maximum displacement or distance moved by a point on a vibrating body
transmission definition
the action or process of transmitting something, or the state of being transmitted.
whats a carbon fossil
formed from the decomposition of buried carbon-based organisms that died millions of years ago
name 2 types of Rock types
sedimentary rock, igneous rock,
(Any rock)
whats a magnetic field
definition of friction
the resistance that one surface or object encounters when moving over another
definition for refraction
the change in direction of a wave passing from one medium to another caused by its change in speed
whats a mold fossil
fossilized imprint
what can sedimentary rock be used for
building stones
What is the electric charge?
a characteristic of a unit of matter that expresses the extent to which it has more or fewer electrons than protons
whats the formula for Newton’s second law of motion?
definition for absorption
the process or action by which one thing absorbs or is absorbed by another
whats the smallest fossil in the world
the skull of a tiny dinosaur trapped in 99-million-year-old amber from Myanmar
whats the biggest rock in the world
Mount Augustus
What are 2 examples of non-contact force
electricity, magnetism,
what's wavelength measured in
A) inches
B) feet
C) kilometers
kilometers
what can be used for electromagnetic waves
Radio waves
whats the rarest fossil in the world
Oviraptor was an ostrich-like theropod dinosaur
how is igneous rock made
form when hot, molten rock crystallizes and solidifies
definition of potential energy
energy stored in an object or system of objects
whats a magnetic field
a region around a magnetic material or a moving electric charge within which the force of magnetism acts
how does transmission work
uses a flywheel, pressure plate and clutch to engage and disengage the engine from the transmission
biggest fossil ever found
titanosaur Patagotitan mayorum
what is the smallest rock called
pebbles