Newton's Laws
A small object with a mass of 100g strikes a larger object with a mass of 200 g with a force of 500N. What force does the larger object exert on the smaller object?
500N
What is the difference between a DC - direct current and an AC - alternating current?
This device can increase or decrease the voltage of an alternating current.
a transformer
These are the 2 types of crust found at the 'surface.'
oceanic ad continental
This type of wave moves particles in right angles in the direction of the waves.
Transverse
This is considered the law of Inerita.
Newton's first law
Eceltrromagnets are unique. How are they different from other magnets?
They can be turned off.
A ______ is a coil of wire that produces a magnet field when carrying a electric current.
Solenoid
Plate tectonic movements are generated by what?
Convection currents in the mantle
With respect to waves, as frequency increase what happens to the energy
It increases
Newton's Second law of Motion uses a mathematical formula to calculate acceleration. What is that formula?
F = m x a
To construct an electromagnet, your need these 3 materials.
Iron core, power source, conductive wire
THe outer core of molten iron currents.
What are the 3 types of plate boundaries?
Convergent, Divergenet and transform
This tpe of wave moves the particles parallel to the directiom of the wave.
Longitudinal
Action and reaction pairs is important to which law of motion?
Newton's thrid law of Motion
This is a device that changes mechanical energy into electrical energy.
generator
This is an area of a push or a pull that can cause an object to move.
Magnetic field
Plate tectonics cause natural disasters. Name one type of natural disaster caused by plate tectonics.
volcano
earthquake
Tsunami
When a wave hits an object and then bounces back is called __________.l
An object does not change motion unless an outside force acts upon it describes whiich law of motion?
Newton's 2nd Law of motion.
The strongest force on a bar magnet is located where?
On the ends or poles of the magnet
What does an electromagnet use to creat its magnetic field?
Electricity
Give 2 pieces of evidence the help to prove Alfred Wegner's theory of plate techtonics.
fossil evidence
puzzle piece continents
same rock formations
climate evidence
What happens when a wave moves from one medium to another ?
It is refracted ; refraction