Force, Mass, and Motion
What is the definition of force?
A push or a pull.
Charging comes from an object gaining or losing what?
Electrons
What is an example of a heterogeneous mixture?
- trail mix
- salad
- oil and water
What are the four states of matter?
What do waves transfer?
Energy
What is mass?
The amount of matter that there is in something.
A proton and an electron do what to each other?
Attract
What is an examples of a compound?
- CO2 gas (carbon dioxide)
- H2O (water)
What is matter?
Anything made up of atoms and molecules (has mass and volume).
What are the two types of mechanical waves called?
Longitudinal and transverse
What is Newtons First Law of Motion?!
Objects in motion stay in motion and objects at rest stay at rest - Inertia
Where on a magnet is the magnetic field the strongest?
The poles
What is an element?
A pure substance that CAN NOT BE BROKEN DOWN into simpler substances.
Which state of matter has the least amount of energy?
Solid
Which wave has the longest wavelength and shortest frequency on the electromagnetic spectrum?
Radio waves
What is Newton's Second Law of Motion?
Acceleration is related to the mass of an object and the force applied to it.
How can you make an electromagnet stronger?
- add more coils
- more or stronger batteries
- larger iron core
What is a compound?
A substance made up of two or more types of elements that are chemically bonded.
Which state of matter can flow but keeps its volume?
Liquid
Name at least 3 parts/measurements of a transverse wave.
crest, trough, resting point, wavelength, amplitude
What is Newton's Third Law of Motion?!
For every action there is an equal and opposite reaction.
What is the region around a magnet where magnetic forces act?
Magnetic field
Why is air considered a mixture?
It has multiple elements and compounds that are not chemically bonded together.
Which state of matter has variable shape and volume?
Gas
Waves with shorter wavelengths have more what?
energy