24 FINAL

Question 1

How would you define potential energy? What about kinetic energy?

Answer 1

Kinetic: energy moving and actively causing changes
Potential: energy stored in position

Question 2

What are some different types of potential energy?

Answer 2

• Chemical
• Gravitational
• Elastic
• Nuclear

Question 3

What are the types of kinetic energy?

Answer 3

• sound
• light
• thermal
• electrical
• mechanical

Question 4

What are the 3 parts to a electrical generator?

Answer 4

• Input
• Converter
• Output

Question 5

What does the law of conservation of energy state?

Answer 5

Energy cannot be created or destroyed

Question 6

What is the 2nd law of thermodynamics state?

Answer 6

No energy conversion is ever 100% effective

Question 7

What is most common form of waste energy?

Answer 7

Thermal energy

Question 8

What is percent efficiency?

Answer 8

How much imput energy Is converted into output energy with a percentage

Question 9

How can you calculate percent efficiency in a energy converter

Answer 9

Efficiency = useful output ÷ total imput ×100

Question 10

What is an electrical generator?

Answer 10

Uses principles of a magnet and wire to generate electricity for us to use

Question 11

What are the 3 things you need for an electrical generator to work

Answer 11

• Magnet
• wire
• movement

Question 12

What are thermoelectric power plants?

Answer 12

Used with a turbine
- nuclear: energy boils water to turn turbine
- Hydroelectric: moving water turns turbine
- Wind: physically moves turbine

Question 13

What is power? How for you calculate it?

Answer 13

The rate of energy use ot the change in energy overtime

Power = energy ÷ time
P= watts
E= Joules
T= Seconds

Question 14

What is a kilowatt hour? How do you calculate it?

Answer 14

How people measue how much energy you use in a month

E = P × T E = kilowatt- hour (kwh)
P = kilowatts. T = hours

Question 15

What are communicable vs. Non-communicable diseases?

Answer 15

Communicable: Contagious

Non-Communicable: not Contagious

Question 16

What is an epidemic vs. A pandemic?

Answer 16

Epidemic: only one geographical area

Pandemic: whole world

Question 17

What is public health? What factors contribute?

Answer 17

Government preventing their citizens from getting sick
- safe drinking water
- check pollutants in the air
- prevents disease from spreading

Question 18

What is an antigen vs. an antibody?

Answer 18

Antigen: unique proteins

Antibody: Y shaped proteins

Question 19

What are the three lines of defense?

Answer 19

Physical defense: ex: eyelashes
Inflammatory: injury gets red and swollen
Antibodies: creates to attack pathogens

Question 20

Genetics vs. Hereditary

Answer 20

Genetics: traits passed down from parents

Hereditary: characteristics passed down from parents

Question 21

What is a genotype?

Answer 21

Traits that are controlled by one pair of genes are assigned a pair of letters

Question 22

What are pedigree charts?

Answer 22

Family trees

Question 23

What are mutations

Answer 23

Genes that can change due to radiation or dangerous chemicals

Question 24

How do you read a graduated cylinder?

Answer 24

Before the dip at the measure line

Question 25

What is a polymer?

Answer 25

A Long chain of molecules They can be natural or man- made

Question 26

What do the terms endothermic and exothermic mean?

Answer 26

Endothermic: absorb energy Exothermic: Release energy

Question 27

What are the different pieces of evidence for chemical reactions?

Answer 27

- Color change - state of matter change - energy change - change in smell

Question 28

What is law of conservation of mass?

Answer 28

In a chemical reaction matter is transformed not destroyed

Question 29

Why does incomplete combustion happen?

Answer 29

Not enough oxygen is available

Question 30

What are the 2 gas chemicals that contribute to acid deposition?

Answer 30

- Sulfur dioxide (SO²) - nitrogen oxide (NO)

Question 31

What is reaction time?

Answer 31

The time it takes for you to notice a hazard and act on it

Question 32

What are distractors? What are their effects on reaction time?

Answer 32

Anything that takes your focus away from the road Slows it greatly

Question 33

What is a stimulant va a depressant?

Answer 33

Stimulant: keeps you awake Depressant: makes you sleepy

Question 34

What is the legal limit for BAC in Alberta?

Answer 34

0.08

Question 35

What is whiplash and how can you prevent it?

Answer 35

When your neck swings back harshly Properly placed head rest

Question 36

What are the different types of safety features in cars?

Answer 36

- Airbags - Seatbelts - Emergency brake

Question 37

What are the different road safety features the government puts into place to decrease injury?

Answer 37

- Crash cushions - guard rails - Light poles

Question 38

How do you calculate speed

Answer 38

Speed = distance ÷ time V = d ÷ t

Question 39

What does the slope of a graph represent?

Answer 39

The steepness or speed of the line

Question 40

How do you calculate distance when you have speed and time?

Answer 40

Distance = Speed × Time d = V × t

Question 41

What is momentum, and how do you calculate it?

Answer 41

A measure of an objects motion and if it will stay in motion P = M × V P= Momentum M= Mass V = Speed

Question 42

What is impulse? How do you calculate it?

Answer 42

Change in momentum Impulse = Force × Time

Question 43

What is the safest way of using impulse to slow you down

Answer 43

Small force, longer time

Question 44

What is the law of conservation of momentum?

Answer 44

The total momentum of two colliding objects stays the same after the collision