1. Physical Science
Semester Exam Review

2. True and False Winds are examples of convection currents.
The type of solution depends on the state of the solute.
The particles of any liquid are constantly moving.
In a forced-air heating system, the warm air circulates by convection
When an object falls, it is reacting to the force of gravity.

3. True and False
The concentration of a liquid solution can be expressed in terms of the percentage by volume of the solute.
Particles of liquids and gases move much more freely than do particles of solids
The terminal velocity is the highest velocity that will be reached by a falling object.
Objects in Earth's orbit appear to be weightless because they are in free fall.
Vitamin C has several oxygen-to-hydrogen bonds resembling those found in water, making Vitamin C polar.

4. True and False
When water dissolves sugar, the positive ends of the water molecules are attracted to the negative ends of the sugar molecules.
Radiation is the transfer of energy in the form of waves.
Non-polar materials do not have separated positive and negative areas.
In hydrocarbons, carbon and hydrogen atoms share electrons in an unequal manner.

5. True or False
Jane is on a merry-go-round that is moving at a constant speed. Her velocity is not constant
Conduction is the transfer of energy by the bulk movement of matter.
Salad oil does notdissolve readily in vinegar.
Oil-based paints, nail polish, and iodine are examples of polar solutes
Acceleration is defined as the rate of change of velocity

6. True or False
Increasing temperature always increases the solubility of a solid in a liquid solvent.
Friction is a force that discourages motion between two surfaces that are touching each other.
The momentum of a 5,000-kg truck that is standing still is zero.
The dissolving process for solid solutions occurs in a liquid state.

7. True or False
Momentum is a property of an object and can be transferred from that object to another object.
Unbalanced forces acting on an object cause the object to accelerate.
 A drink advertised as having 10% fruit juice has a concentration of 10% by volume of the fruit juice.

8. Multiple Choice Bases produce OH- ions in solution
An inclined plane is a slanted surface used to raise an object
Differences between static discharge and electric current
The oceans are a liquid solution
Centripetal force
How to speed up the solution process

9. Multiple Choice What chemical symbols represent
How does increasing the speed affect potential energy.
Inertia
8 electrons make the outer level stable.
Gases dissolve faster in liquids when they are cold.
Resistance is measured in volts.

10. Multiple Choice Instantaneous speed=the speed on a spedometer.
Saturated solutions
Mass Number= number of protons
Adding solute to a solution increases its boiling point.
A wedge is an inclined plane with two sides.’
Car engines transfer chemical energy to mechanical energy.

11. Multiple Choice Types of reactions
Sources of constant electric current.
Definition of isotopes.
Conductors and insulators
Definition of titration
Amplitude measures wave energy.
An electron moves around a nucleus
Acceleration due to gravity

12. Multiple Choice Properties of bases
Power = rate at which work is done.
Formulas of acids
According to the law of conservation of energy the energy in the universe remains constant.
Kilo- = 1000
F=ma Newton’s 2nd law
Feathers fall slower due to air resistance.
pH of acids and bases.

13. Multiple Choice Lightning is a large discharge of static electricity
S is the SI unit for time
Watts are units of power
An alloy is a solid solution.
Joules are SI units for energy.
Definition of solubility
Chemical changes
Chemical Formulas

14. Multiple Choice Definition of mixture Definition of motion
Hydronium ions
Acceleration = rate of change of velocity
Nonelectrolyte=solution that does not conduct electricity
Solution=homogeneous mixture.
Air resistance
Static electricity

15. Multiple Choice
Electric powerLever=bar that moves around a fixed point.
Simple machine
Kinetic energy
Parallel circuit
Ohm’s law
Physical properties
Strong vs. weak bases
Convert from cm to m

16. Multiple Choice Increasing the surface increases the rate of solution.
Given a formula find the number of each type of atom.
Subscripts
Indicators
A compound is not a mixture.
The SI system is based on multiples of ten.

17. Multiple Choice Solvent vs. solute Newton’s 1st law
Acids produce hydronium ions in solution
pH measures how acidic or basic a solution is
Name a compound
Series circuit
Periods on the periodic table
Columns on the periodic table
Volts and amps
Sources of electric current

18. Multiple Choice

19. Multiple Choice

20. Multiple Choice

21. Multiple Choice