Science Semester Review

Question 0

Force equation

Answer 0

F=Ma

Question 1

Oxidation number

Answer 1

The number of electrons an element/polyatomic atom has gained or lost in a chemical reaction

Question 2

Acceleration of gravity

Answer 2

10m/s^2

Question 3

Types of bonds

Answer 3

Ionic- atoms give or receive atoms and magnetically attract

Question 4

Types of reactions

Answer 4

Combustion
Decomposition
Synthesis
Single replacement
Double replacement

Question 5

Velocity

Answer 5

The change in displacement over time (+direction)

Question 6

Speed

Answer 6

Change in distance over change in time

Question 7

Distance

Answer 7

The total amount a object has traveled

Question 8

Displacement

Answer 8

The distance between the starting and ending point and the direction between the two points

Question 9

Terminal velocity

Answer 9

A point where air resistance and the force of gravity are exactly equal

Question 10

Friction

Answer 10

the force that opposes motion

Question 11

Newton’s first law of motion

Answer 11

An object at rest stays at rest until a force acts upon it. An object in motion stays in motion unless a force acts upon it.

Question 12

Newton’s third law of motion

Answer 12

For every action there is an equal and opposite reaction

Question 13

Newton’s second law of motion

Answer 13

The force acting onan object is equal to its mass times its acceleration. Also the direction of the acceleration is the same as the direction of the force

Question 14

Acceleration

Answer 14

The change in velocity over time +direction

Question 15

Metals

Answer 15

Shiny, conductors of heat and electricity, malleable, ductile, solid at room temperature (except for mercury)

Question 16

Nonmetal

Answer 16

Brittle, not conductive, not ductile, most gas at room temperature (some are solid but only bromine is a liquid at room temperature)

Question 17

Metalloid

Answer 17

Elements that have some characteristics of metal and some of nonmetals, semiconductors, some are malleable, some are ductile, mostly solid at room temperature.