Ripping a sheet of paper in half is an example of a ____________ change.
What is physical change?
100
________________________________ is a force that opposes an object’s motion.
What is friction?
100
______________ is the work you do on a machine. __________ is the work done by a machine.
What is input/output
100
__________ and _________ are formed in the nucleus of an atom.
What is protons and neutrons
100
A pure substance made of two or more elements that are chemically combined is called a ______________
What is a compound?
200
__________ have a definite shape and volume; _______ take the shape of their container and have definite volume; ____________ - take shape and volume of container.
What is solid, liquid, gas
200
Acceleration is the rate at which ____________ changes.
What is velocity.
200
______________ energy is the energy of motion.
What is kinetic
200
An atom is neutral if it has equal number of _________ and _________.
What is protons and neutrons
200
What is the formula for density?
What is mass divided by volume
300
__________ is the amount of surface an object has. _____________ is the amount of matter in a given volume.
What is area/density.
300
What are the 4 forces that act on an aircraft?
What is lift, thrust, drag, gravity
300
_________________________________ is being done when you exert a force that moves an object in the direction of the force.
What is work
300
The discovery of the ________________________proved that the atom is NOT indivisible.
What is electron
300
A _________________________________ is push or a pull that is expressed in newtons and can causes an object to speed up, slow down, or change direction.
What is force
400
Thermal conductivity, state of matter, malleability, ductility, solubility, and density are all _____________ properties of matter.
What is physical properties
400
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will __________________.
What is remain in motion?
400
__________ is the ability to do work.
What is energy
400
Democritus, Dalton, Thomson, Rutherford, and Bohr all contributed to the _____________
What is Atomic Theory
400
The forward force produced by an airplane’s engine is called ____________________________.
What is drag?
500
A ____________ change effects the shape or form of object, but identity stays the same. A ___________ change effects the identity of substance and the properties change.
What is physical/chemical
500
What is the difference between speed and and velocity?
What is speed does not include direction.
500
_____________ is the energy of shape or form
What is potential
500
What is the charge, location, and mass of a proton?
What is positive, nucleus, 1
500
What are the 6 steps of the scientific method?
What is 1. Ask a question 2. Form a hypothesis 3. Test a hypothesis 4. Analyze data 5. Draw conclusions 6. Communicate results