Speed is defined as the _________________ and object moves in a certain _________________ period.
Distance, time
100
Acceleration is the rate at which ______________ changes.
Velocity
100
A compound is two or more elements _____________ combined
chemically
100
Neutralization reactions occur between what two substances?
acid and base
100
What phase of matter has no definite volume?
Gas
200
Speed that includes direction is?
Velocity
200
What is another name for Newtons's First Law of Motion?
The Law of Inertia
200
A mixture is two or more elements ______________ combined.
Physically
200
What two substances are produced in a neutralization reaction
salt and water
200
What happens to valence electrons in a covalent bond?
They are shared
300
What are the three way that you can change acceleration?
Speeding up, slowing down, changing direction
300
State the equation for Newton's Second Law of Motion
F=ma
300
What is an indicator?
Substance that changes color to determine if something is an acid or a base.
300
The Particle Theory of matter tells us that all matter is composed of ___________ that are in constant ________________
atoms, motion
300
How do polar covalent bonds share electrons?
unequally
400
A car drives 2000 km North in 4 hours. What is the velcoity
500 km/hr west.
400
Equal and opposite forces acting on a object are called ___________ forces and result in no _______________ in an objects motion
Balanced, change
400
List 3 properties of bases
Taste bitter, turn indicator blue, pH above 7, feel slippery, can be corrosive
400
The sun is which phase of matter?
Plasma
400
Tell whether the example is a physical or chemical change
1. adding heat to make ice melt
2. a log burning
3. crushing a box
4. mixing and acid and a base
5. Rusting
1. P
2. C
3. P
4. C
5. C
500
State Newtons first Law of Motion.
Object at rest stays at rest, object in motion stays in motion unless acted upon by an outside force
500
State Newton's Third Law of Motion and give one example
For every action there is an equal and opposite reaction. Rocket taking off.
500
List 4 properties of acids
sour, indicator red, pH below 7, corrosive
500
A metal bonded with a nonmetal is what type of bond?
ionic
500
What part of an experiment do you graph on the x-axis?