Q1: Science Long Test1

Question 1

What is science?

Answer 1

The never-ending pursuit for knowledge.

Question 2

What makes a statement scientific?

Answer 2

A scientific statement is one that can be proven wrong - Karl Popper,

the statement should be FALSIFIABLE for it to be SCIENTIFIC.

Question 3

The 3 factors to consider for a statement to be scientific

Answer 3

1. Verifiable - Can be proven false?
2. Specificity
3. Credibility - is it truthful?

Question 4

What is a scientific statement?

Answer 4

It is a statement that can be falsifiable.

Question 5

What process does the scientific method use?

Answer 5

Controlled Experiments

Question 6

What is a controlled Experiment?

Answer 6

An experiment with only one variable manipulated at a time.

Question 7

How many setups do you use in a controlled experiment and what are they?

Answer 7

2 Setups,
- CONTROL SETUP
- EXPERIMENTAL SETUP

Question 8

What is the control setup?

Answer 8

Same equipment is used, everything is the same, but no variable is tested.

This is the BASELINE for the experimental setup.

Question 9

What is the experimental setup?

Answer 9

Set up exactly the same as the control set up, BUT one thing that you want to measure is factored inside.

Ex. 3 cups, 2 normal and 1 is dyed.

Question 10

What is a scientific theory?

Answer 10

An explanation of things based by many observations and investigation

Question 11

What is a scientific law?

Answer 11

A statement that happens in nature and is seen to be true all the time.

Question 12

How are electromagnetic waves made?

Answer 12

By vibrating electric charges.

Question 13

What can electromagnetic waves travel through?

Answer 13

Space and vacuum

Question 14

How do moving charges create magnetic fields?

Answer 14

Any moving charge is surrounded by an electric & magnetic field.

Question 15

What direction does a EM wave travel?

Answer 15

It travels through all the directions.

Question 16

What type of wave is an electromagnetic wave?

Answer 16

It is a transverse wave.

Question 17

What energy do EM waves carry?

Answer 17

Radiant Energy

Question 18

What happens to the wavelength as the temperature of the material increases?

Answer 18

The wavelengths become shorter.

Question 19

Can a wave behave like a particle? If yes, what is the particle called?

Answer 19

Yes, it is called a photon.

Question 20

What are frequencies called?

Answer 20

eLECTROMAGNETIC SPECTRUM.

Question 21

(Sort of) Explain how the electromagnetic spectrum works.

Answer 21

When the wavelength decreases, frequency increases.

Question 22

What waves have the lowest frequency?

Answer 22

Radio waves

Question 23

What are microwaves?

Answer 23

Radio waves with wavelengths less than 30 cm and have a higher frequency & shorter wavelength.

Question 24

What does “RADAR” stand for?, and what does it do?

Answer 24

Radio Detecting And Ranging

Used to find the position and speed of objects by bouncing radio waves off the object.

Question 25

What is MRI (Magnetic resonance imaging)?

Answer 25

To use radio waves to diagnose illnesses.

Question 26

What are Infared Waves?

Answer 26

EM waves with wavelengths that measure from 1 mm to 750 billionths of a meter.

Question 27

What is Visible Light?

Answer 27

The range of EM humans are able to see.

Question 28

What are the different colors of wavelengths, and which is the shortest, longest, and etc.

Answer 28

Red Longest
Blue Shortest
Light Looks like all colors are present

Question 29

What are Ultraviolet waves?

Answer 29

Em waves with wavelengths from about 400 billionths to 10 billionths of a meter.

They have enough energy to enter skin cells.

Question 30

How is UV radiation useful?

Answer 30

Gives Vitamin D

Question 31

X-Rays or Gamma Rays: Which has the highest energy?

Answer 31

Gamma Rays have higher energy compared to X-rays

Question 32

What are X Rays and Gamma Rays

Answer 32

EM waves with wavelengths shorter than 10 trillionths of a meter.

Both is used to kill diseased cells in radiation therapy.

Question 33

What is Global Positioning System [GPS] ?

Answer 33

A system with 24 satellites, ground monitoring stations, and portable receivers to determine your exact location in earth.

Question 34

What can electromagnetic radiation be?

Answer 34

Both ionizing or non ionizing, depending on its energy.

Question 35

What capability does ionizing radiation have?

Answer 35

Enough energy to induce ionization.

Question 36

What is ionization?

Answer 36

process of removing electrons from neutral atoms.