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Flashcards in Midterm Exam Deck (31):
1

Protons can be identified by?

The atomic number

2

Electrons can be identified by?

The atomic number

3

Neutrons can be found by?

Atomic mass - Atomic number

4

What are the rows (horizontal)called on the periodic table?

A period
There are 7

5

What are the columns (vertical) called on the periodic table?

Groups or families
There are 18

6

Where is the most reactive metal located on the periodic table?

At the bottom (the last) group
Of the alkali metals

7

Where is the most reactive gas located on the periodic table?

On the top (the first) of the group
Of the halogens

8

Are Nobel/inert gases non metals or metals?

Non metals, these gases are very un reactive

9

What are 3 things that conduct electricity?

(All have to be in water)
1. Salt and water
2.Acid and water
3.Base and water

10

Fossil fuels energy

~Non-Renewable
Produces a lot of pollution by releasing carbon dioxide in the atmosphere

11

Uranium Nuclear energy

~Non-Renewable
Extremely dangerous and very toxic a small amount can produce a lot of energy

12

Geothermal energy

~Renewable
Found below the lithosphere

13

Hydroelectric electricity

~Renewable
The building of dams will often flood large areas, affecting various animals and plants

14

Wave energy

~Renewable
Needs buoys that go up and down, does not pollute, not yet popular because it is expensive

15

Tidal energy

~Renewable
Is due to the gravitational forces of the moon and sun,electricity can be generated by a 5 meter tide

16

Wind energy

~Renewable
Cannot be stored, needs to be used with another type of energy, can be ugly and noisy

17

Solar energy

~Renewable
Needs sunshine, can sometimes look ugly, does not pollute

18

Mass is calculated in?

Grams

19

Volume is calculated in?

Litres

20

Concentration is calculated in?

Grams/Litre

21

Formula for PPM

Mg/L (liquid) or Mg/Kg (Solid)

22

Concentration (ppm)

Mass of solute (mg)/ volume of solution (ppm)

23

Power source

Battery which is the power source, provides energy to the circuit

24

Wires

Carries the current

25

Ammeter

Measures the current intensity

26

Resistor

Converts electrical energy into other forms of energy

27

Light bulb

Component that generates light also a resistor

28

Voltmeter

Mesures the voltage always on the outside of the circuit behind the resistor

29

Switch

Controls the current, if switch is open then the circuit will not function

30

Describe a series circuit

Elements are linked directly together from one end to another, follows the same pathway

31

Describe a parallel circuit

Follows different pathways